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Sponge: Set up Cornell Notes on Topic: Ch. 7 Skeletal System: Major Bones of the Body Essential Question: 1.On Page 84 draw and Label the parts of the.

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Presentation on theme: "Sponge: Set up Cornell Notes on Topic: Ch. 7 Skeletal System: Major Bones of the Body Essential Question: 1.On Page 84 draw and Label the parts of the."— Presentation transcript:

1 Sponge: Set up Cornell Notes on Topic: Ch. 7 Skeletal System: Major Bones of the Body Essential Question: 1.On Page 84 draw and Label the parts of the 1.The Thoracic Cage 2.Pectoral Girdle 3.Upper Limb 2.1 Atoms, Ions, and Molecules 1.Draw and Label the parts of the 1.The Thoracic Cage 2.Pectoral Girdle 3.Upper Limb Ch. 7 Skeletal System: Major Bones of the Body

2 2 Thoracic Cage Composed of: Ribs Sternum Thoracic vertebrae Costal cartilages Function: Supports shoulder girdle and upper limbs Role in breathing

3 3 Ribs Usually 24 ribs True ribs (7 pairs) Join the sternum directly False ribs (3 pairs) Do not attach to sternum directly Floating ribs (2 pair) No attachment to sternum

4 4 Rib Structure Shaft Head – posterior end; articulates with vertebrae Tubercle – articulates with vertebrae Costal cartilage – hyaline cartilage

5 5 Sternum Manubrium Body Xiphoid process Aka breastbone Located anteriorly at the midline

6 6 Pectoral Girdle Consists of: clavicles scapulae Function: supports upper limbs aka shoulder girdle

7 7 Clavicles Aka collar bone Slender, rod like bones Located at base of neck Run horizontally between the sternum and the scapulae

8 8 Scapula Aka Shoulder blade Broad, triangular bones Located on both sides of upper back

9 9 Upper Limb Consists of: Humerus Radius Ulna Carpals Metacarpals Phalanges Function: Attach to muscles to move limb parts

10 10 Humerus head greater tubercle lesser tubercle anatomical neck surgical neck deltoid tuberosity capitulum trochlea coronoid fossa olecranon fossa Long bone Extends from scapula to the elbow Moves upper limb at shoulder

11 11 Radius Located on the thumb side Shorter than ulna Extends from elbow to wrist Crosses over ulna when the hand is turned Allows the radius to rotate

12 12 Ulna Aka elbow bone Longer than radius Overlaps the humerus Allows your arm to bend at the elbow

13 13 Wrist and Hand Made up of wrist, palm, and fingers Wrist Carpal bones Two rows, with 4 bones each Palm Metacarpals Ends are your knuckles Thumb side most freely movable Fingers Phalanges

14 14 Thoracic Cage Sternum True Ribs False Ribs

15 15 Pectoral Girdle

16 16 Upper Limb Humerus Radius Ulna Carpals Metacarpals Phalanges

17 Sponge: Set up Cornell Notes on Topic: Ch. 7 Skeletal System: Major Bones of the Body Essential Question: 1.On Page 88 draw and Label the parts of the 1.The Pelvic Girdle 2.Lower Limb 2.1 Atoms, Ions, and Molecules 1.On Page 88 draw and Label the parts of the 1.The Pelvic Girdle 2.Lower Limb Ch. 7 Skeletal System: Major Bones of the Body

18 18 Pelvic Girdle Consists of: Coxae (2) Function: supports trunk of body Provides attachments for lower limbs Protects bladder, reproductive organs, part of lg. intestine body’s weight is transmitted through the pelvic girdle to the lower limbs then onto the ground

19 19 Coxae Aka hip bone Ilium Largest part Forms “hip” Ischium Supports the weight of the body while sitting pubis anterior portion Two pubic bones come together at the midline Form pubic arch

20 20 Pubic arch

21 21 Greater and Lesser Pelves Greater Pelvis lumbar vertebrae posteriorly iliac bones laterally abdominal wall anteriorly Lesser Pelvis sacrum and coccyx posteriorly lower ilium, ischium, and pubis bones laterally and anteriorly

22 22 Male and Female Pelves Female iliac bones more flared broader hips pubic arch angle greater more distance between ischial spines and ischial tuberosities sacral curvature shorter and flatter lighter bones

23 23 Lower Limb Consists of: Femur Patella Tibia Fibula Tarsals Metatarsals Phalanges

24 24 Femur aka thigh bone Longest bone of body Extends from the hip to the knee

25 25 Patella aka kneecap Located on anterior surface of knee Allows lower limb movements

26 26 Tibia Aka shin bone Larger of the two leg bones Located on medial side Enters into knee joint

27 27 Fibula Lateral to tibia Long, slender Does not bear any body weight

28 28 Ankle and Foot Made up of ankle, the instep, and the toes Ankle Tarsals Calcaneus aka heel bone Supports body weight Instep Metatarsals Form ball of foot and arch Provide stable, springy base for body Toes Phalanges Shorter than fingers

29 29 Ankle and Foot

30 30 Pubic arch Pelvic Girdle

31 31 Femur Patella Fibula Tibia Metatarsals Tarsals Phalanges Lower Limb


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