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I. General Information about the Skeletal System A
I. General Information about the Skeletal System A. ______________________- study of movement of the human body. Kinesiology
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B. Division of the Skeletal System
Human Skeleton (206 bones TOTAL) AXIAL Skeleton Skull (22 bones) Hyoid (1 bone) Auditory ossicles (6 bones) Vertebral column (26 bones) Thorax (25 bones) = 80 bones total
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Human Skeleton (206 bones TOTAL) Appendicular Skeleton Clavicle (2 bones) Scapula (2 bones) Upper limbs (60 bones) Pelvic Girdle (2 bones) Lower limbs (60 bones) = 126 bones
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Blue = axial Yellow = appendicular
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C. Bone and Surface Markings 1. Depressions & Openings: a
C. Bone and Surface Markings 1. Depressions & Openings: a. ___________________- opening for blood vessels, nerves and/or ligaments. example – b. _____________________- shallow depression in or on the bone. example - Foramen Opening in pelvis bone Fossa Coronoid fossa of the humerus
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2. Processes that form joints a
2. Processes that form joints a. _________________- large rounded prominence that forms joints. example – b. _________________- rounded project that is supported on a thinner “neck” and forms a joint. example - condyle Knobs on lower femur at knee head Top of the femur (“ball”)
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3. Processes that tendons, ligaments & other tissue connect to: a
3. Processes that tendons, ligaments & other tissue connect to: a. _____________________ - large, blunt projection only on the femur (not the “ball” part) b. _____________________ - prominent border or ridge Example - Trochanter Crest Illiac crest at top of hip bone
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c. ____________________- large, rounded projection, usually with a rough surface. Example – d. __________________________________- a sharp, slender project. Example - Turbocity Deltoid turbocity of the humerus Spine or Spinous process The part of the vertebrae that you can palpate on someone’s back
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4. ______________________- to make contact with
4. ______________________- to make contact with. (ex- me humerus articulates with the radius) articulate
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D. General differences between male & female skeletons 1
D. General differences between male & female skeletons 1. Male bones are _______________ and_____________________ than female bones. 2. Male points of _____________________ are larger. larger heavier Muscle attachment
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II. Upper Appendage A. Definition of Upper Appendage: _______ __________________________________ B. Pectoral Girdle – the _______________ & ________________ that anchors the limb to the axial skeleton. Pectoral Girdle + Upper Limb clavicle scapula
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Clavicle 1. ___________________ (collar bone) a. it is the ___________________ fractured bone due to one outstretching their arms when s/he falls. Most commonly
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_________ end of the clavicle
LATERAL _________ end of the clavicle MEDIAL _________ end of the clavicle
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2. ________________________ (shoulder blade)
scapula _________________ Used for attachment to shoulder muscles. Scapular spine _________________ attaches to rotator cuff muscles. Infraspinous process
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_________________ ________________ attaches to rotator cuff muscles. Supraspinous process
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____________-Articulates with the __________
____________-Articulates with the __________. (This is where a “separated shoulder” occurs.) ACROMION CLAVICLE __________________ Articulates with the head of the _________________ to form a ball & socket joint. Glenoid Fossa humerus
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______________________________
Used for attachment to chest and arm muscles. Coracoid process ____________________- faces towards the ribs. Subscapular fossa
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Separated shoulder 3. ____________________________- an injury where the joint between the lateral end of the clavicle and the acromion of the shoulder is affected (often happens with forceful trauma).
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Humerus C. ____________________- (upper arm bone) _____________articulates with the glenoid fossa of the scapula. HEAD __________________________ Where the humerus narrows. Anatomical neck _________________________- Attachment point for deltoid muscle. Deltoid Turberosity
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______________ ___________- Articulates with the ulna when arm is bent. CORONOID FOSSA ____________ (lateral side) Articulates with the radius CAPITULUM ___________-(spool shaped) Articulates with the ulna. TROCHLEA
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_______________. Articulates with the olecranon process of the ulna.
Olecranon fossa
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D. ____________________- (lower arm bone on
the little finger side) Ulna ULNA
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Ulna – full view _______________Articulates with the carpals of the wrist Styloid Process
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Ulna – enlarged proximal end; lateral view
Trochlear notch _______________where the humerus fits _____________________ “point” of elbow Olecranon process _____________________ Where the radius fits. Radial Notch ________________________-articulate with coronoid fossa of humerus CORONOID PROCESS
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E. ____________________- (lower arm on the
thumb side) Radius RADIUS
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_______________Articulates with the capitulum
_______________Articulates with the capitulum. (allows the hand to face “palms up”) head _______________ (commonly “fall” fracture by people over 50) Styloid process
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1. ______________________________ - the head of the radius slides past or ruptures the ligament that forms a collar around the head of the radius (most common upper limb dislocation in children). Dislocation of the radial head
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F. Carpals - _______________________________
8 bones in the wrist _______________2 rows of bones that forms a tunnel for nerves & tendons to pass through. CARPALS Carpal Tunnel Syndrome ______________________- when the nerves of this tunnel are compressed and cause numbness, tingling & weakening in the hand.
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G. Metacarpals - ___________________________
5 bones that make up the palm of the hand ______________________ - Each metacarpal has a base (proximal), body & a head (distal). It is the _____________ of the metacarpal that makes _________________ when you clench your fist. METACARPALS head knuckles
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H. Phalanges - ____________________________
14 bones of the fingers & thumb Proximal Phalanges
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Middle Phalanges
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Distal Phalange
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I. Pollex - ____________________________
Specialized phalange that makes up the thumb Pollex – no middle phalange
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IV. _________________________- both hip bones A
IV. _________________________- both hip bones A. Three functions of the pelvic girdle: 1. _________________ the vertebral column 2. _____________________________ of the pelvis (bladder, reproductive organs, rectum). 3. __________________________ to the axial skeleton. Pelvic Girdle supports Protects the organs Attaches lower limbs
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B. Features of the Pelvic Girdle
Coxal ______________- the two “hip” bones that are made up of the: _______________ _______________________ which fuse together by age 23. Illium, ischium & pubis
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_________________- joint that joins the two coxal bones.
Pubic Symphasis
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_________________- divides the pelvis into an upper & lower portion.
Pelvic Brim
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_________________- joint on the posterior side where the 2 coxal bones join the sacrum.
Sacroilliac joint
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_________________everything above the pelvic brim
_________________everything above the pelvic brim. It is actually considered to be part of the ______________ & only contains the bladder when it is _________ and uterus during _____________. False Pelvis abdomen full pregnancy
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_________________below the pelvic brim which surrounds the pelvic cavity
True Pelvis
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_______________ upper opening of the true pelvis.
Pelvic Inlet
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_______________ lower opening of the true pelvis.
Pelvic Outlet
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C. ________________ - largest part of the coxal bone Illium
Anterior View Illiac crest
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Lateral View of Coxal Bone
_________________________ - where the sciatic nerve (longest nerve in body) passes through. Greater sciatic notch
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D. ________________ - lower, posterior part of coxal bone. Ischium
Anterior View
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E. ________________ - lower, anterior part of the coxal bone. Pubis
Anterior View
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F. Features created by the joining of the bones of the coxal
F. Features created by the joining of the bones of the coxal. (lateral view) ____________- socket for the head of the femur formed by the joining of all 3 coxal bones. Acetabulum
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__________________- largest foramen of the skeleton where nerves and vessels pass (formed by joining of ischium & pubis. Obturator Foramen
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G. Structural differences between a male and female pelvis 1
G. Structural differences between a male and female pelvis 1. ____________________- of the female is larger and the _________________ is oriented so that a baby can fit through. 2. The angle made by the two ischium bones is a larger _______ shape in females, and narrower _________ shape in males. Pelvic Inlet Pelvic outlet U V
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V. __________________ (the leg) A
V. __________________ (the leg) A. _________________(thigh bone) – the STRONGEST bone in the body Lower Limb Femur
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Greater Trochanter ____________ __________- projection on side of femur where muscles attach(also landmark for injections in the thigh). __________________- “ball” of the femur which articulates with the acetabulum. Head
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__________________- articulates with the patella (“knee cap”).
Patellar Surface
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____________ __________- Towards the outside of the leg. Articulates with the tibia. Lateral Condyle __________________- towards the inside of the leg. Articulates with the tibia. Medial Condyle
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B. ___________________ (“knee cap”) – normally tracks(moves) up & down in a __________ between the femoral condyles. Patella groove
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1. ___________________________- “runner’s knee” occurs when the patella tracks _________________ and causes pain. (due to running on the same side of the road that is naturally sloped). Patellofemoral Stress Syndrome laterally
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C. _________________(shin bone)
Tibia
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________________________-
Articulates with the lateral condyle of the femur. Lateral condyle ______________________- Articulates with the medial condyle of the femur. Medial condyle
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Medial Malleolus _____________________- Forms the prominence you feel on the medial ankle bone.
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1. ______________- pain along the tibia that results from inflammation of the tibia’s ___________________ (usually caused by over-exertion of the calf muscles) Shin splints periosteum
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D. ___________________- smaller bone next to the tibia in the lower leg.
Fibula
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___________________-
Forms the prominence you feel on the lateral part of the ankle surface. Lateral malleolus
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E. The FOOT & its functions 1
E. The FOOT & its functions 1. ______________- 7 ankle bones of the foot Tarsals ___________________- It is the only tarsal that articulates with the tibia & fibula. It initially bears the _________ of the entire body when walking. Talus weight
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___________- Between the talus and cuniforms Navicular
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___________- 3 bones between the navicular & metatarsals. cuniforms
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___________- Between the calcaneous and metatarsals Cuboid
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___________________-
(heel bone) It is the largest & strongest tarsal. _________ the weight is transferred to it from the __________ when walking. Calcaneous Half Talus
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metatarsals 2. _______________________- 5 bones that are similar to the metacarpals that make up the “sole” of the foot. a. like the metacarpals, each have a __________ base, a body, and a ___________ head. proximal distal
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3. __________________- 14 bones similar to the fingers in the hand.
phalanges Proximal phalanges
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Middle Phalange (only 4)
Distal Phalanges
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4. ___________________- specialized phalange that lacks a ______________ phalange.
Hallux middle
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functions 5. The four ___________ of the arches foot: a. _________________ leverage when walking b. _________________ shock (by “giving when weight is applied & “springing back” afterwards). c. ____________________ body weight over parts of the foot. d. ____________________ the weight of the body. Acronym help: ______________ (think…..the “PADS” of your feet) P.rovides A.bsorbs D.istributes S.upports P. A. D. S.
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6. Three arches of the foot
Transverse arch ________________- Runs horizontally across the foot. Formed by the navicular, cuniforms, & bases of metatarsals.
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Medial Longitudinal Arch
_________________________- Runs front to back of foot by the inside of the foot.
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Lateral Longitudinal Arch
______________________- Runs front to back of foot by the outside of the foot.
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7. __________________- abnormally low height of the medial longitudinal arch.
Flat footed
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VI. Joints of the Skeletal System A
VI. Joints of the Skeletal System A. __________________- point of contact between ___________, between ________________________ or between ____________________. Joint bones Cartilage & bones Teeth & bones
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B. Divisions of Medical Studies of Joints 1
B. Divisions of Medical Studies of Joints 1. ______________________- the study of joints. 2. ______________________- study of joint disease and related conditions Arthology Rheumatology
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C. Movement of Joints 1. Range of motion: a
C. Movement of Joints 1. Range of motion: a. in general, the _______________ the distance between the articulating bone, more _________________ the range of motion for that joint. Ex - shorter restricted Skull bones- very close together no range of motion femur & tibia are farther apart large range of motion
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2. Three Factors that determine joint flexibility: a
2. Three Factors that determine joint flexibility: a. ____________________ of the ligaments that bind the bones together. b. _____________________of articulating bones. c. _____________________tension of associated muscles and tendons. ACRONYM HELP: What’s your favorite math class at DPHS? __________________ F.lexibility S.hape T.ension F. S. T.
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JOINTS D. Classes of Joints Fibrous Bones are held together by__________ connective tissue. Lack a ________________ cavity Three Types _____________ fibrous synovial suture syndesmosis gomphosis
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JOINTS Synovial ____________ a synovial cavity Most ___________ Six Types ______________ contains movable planar condyloid hinge saddle pivot Ball & socket
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JOINTS Cartilaginous Bones are held together by ______________. Also _________ a synovial cavity. Two Types ______________ cartilage lacks synchondris symphasis
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1. FIBROUS JOINTS SUTURE immovable -They are ________________
-Found where__________ unite Skull bones
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-Found in_____________________
SYNDESMOSIS (sin-dez-MŌ-sis) Slightly movable -They are ________________ -Found in_____________________ Tibia/fibula connection & sacrum/coxal connection
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-They are ________________ -Found only in_________________
GOMPHOSIS (gom-FŌ-sis) immovable -They are ________________ -Found only in_________________ Tooth sockets
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2. SYNOVIAL JOINTS PLANAR Wrist & ankles Found in _________________
Btwn clavicle & sternum Btwn clavicle & scapula
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- Found in ________________ Wrist and ankles
CONDYLOID (KON-di-loyd) - Found in ________________ Wrist and ankles
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SADDLE - Found in ________________ Thumb only
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HINGE - Found in __________________ Knee, elbow, ankle, & fingers
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PIVOT - Found in __________________ Elbow & head to say “no”
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BALL-&-SOCKET - Found in __________________ Shoulder & hip joints
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a. ____________________- allows the joint to move freely.
Synovial cavity
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b. specific joint structures of the knee:
_________________________________________- Ligament that extends posteriorly & laterally from the tibia to the fibula. Anterior Cruciate Ligament (ACL)
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___________________________-
Found on the outside of the knee. Meniscus allow for a____________ fit between two different shaped bones. Lateral Meniscus tighter
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Medial Meniscus ___________________________- Found on the inside of the knee.
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c. Common injuries of the knee: 1
c. Common injuries of the knee: 1. _____________________- when the anterior cruciate ligament is stretched or torn (70% of all serious knee injuries). ACL injury
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2. _______________________________ - when the lateral or medial meniscus is damaged. (If the damaged cartilage is not removed, it may lead to arthritis) Torn Cartilage of the knee
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3. CARTILAGENOUS JOINTS immovable -They are ________________
SYNCHONDROSIS (sin-kon-DRŌ-sis) immovable -They are ________________ -Found in _____________ of elongating bones & between the ____________ & ____________ Growth plates Rib cage sternum
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-They are ________________
SYMPHASIS (sim-fi-sis) Slightly movable -They are ________________ -Found between the __________ bones and between ____________ pubis vertebrae
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E. Common Joint Diseases & Complications 1
E. Common Joint Diseases & Complications 1. _______________________- an autoimmune disease in which the immune system of the body attacks its own cartilage & joint linings. It is characterized by _______________ of the synovial cavity. Rheumatoid Arthritis (RA) swelling
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2. _________________________- degenerative joint disease characterized by deterioration of ________________ cartilage. (the “wear & tear” arthritis) Osteoarthritis articular
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3. ________________- forcible wrenching or twisting of the ________________ of a joint.
Sprain ligaments
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Strain 4. _____________________- stretched or partially torn _________________. (often occurs when a muscle contracts suddenly & powerfully) muscle
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