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MUSCLES OF THE BODY You need to be able to know the location and action of these muscles!!!
Occipitalis Wrinkle forehead, elevate eyebrow
Frontalis Wrinkle forehead, elevate eyebrow
Orbicularis Oculi Blinks eye
Orbicularis Oris Closes Lips
Buccinator Compresses cheek
Zygomaticus Helps to smile (lift corners of lips)
Platysma Helps to frown (lower corners of lips)
Temporalis Close jaw
Masseter Close jaw
Sternocleidomastoid Flex neck and rotate head
Trapezius Extends head, rotates and adducts scapula
Latissimus Dorsi Extend, adduct & rotate arm medially
Deltoid Abducts & flexes arm
Pectoralis Major Flexes, adducts & rotates arm medially
Rotator Cuff Group of 4 muscles that rotates & stabilizes arm Supraspinatus, Infraspinatus, Subscapularis, Teres Minor
Erector Spinae Rotates and extends vertebral column and head
External Intercostals Elevate ribs (inspiration)
Internal Intercostals Depress ribs (forced expiration)
Rectus Abdominis Flexes & compresses abdomen
External Oblique Compresses abdomen
Internal Oblique Compresses abdomen
Transversus Abdominis Compresses abdomen
Biceps Brachii Flexes elbow joint (forearm)
Triceps Brachii Extend elbow joint (forearm)
Brachialis Flexes elbow joint (forearm)
Brachioradialis Flexes elbow joint (forearm)
Forearm Muscles Flexor carpi ulnaris – flexes wrist Flexor carpi radialis – flexes wrist
Forearm Muscles Extensor carpi radialis - extends wrist
Forearm Muscles Extensor carpi ulnaris - extends wrist
Forearm Muscles Flexor digitorum - flexes fingers
Forearm Muscles Extensor digitorum - extends fingers
Right Arm, Anterior Side (Palm side up)
Right Arm, Posterior Side (Palm side down)
Gluteus Maximus Extends & rotates thigh laterally
Gluteus Medius Abducts & rotates thigh
Upper Leg Muscles
Rectus Femoris Flexes Thigh, Extends Lower Leg (part of quadriceps)
Vastus Lateralis Extends Lower Leg (part of quadriceps)
Vastus Medialis Extends Lower Leg (part of quadriceps)
The 4 th muscle of the “quad” group is the Vastus Intermedius, which is hidden below the other three!
1. vastus medialis 2. vastus lateralis 3. vastus intermedius 4. rectus femoris
Sartorius Flexes & laterally rotates thigh (longest muscle of the body!)
Adductor Muscles Adducts thigh Gracilis, Adductor Magnus, Adductor Longus, Adductor Brevis
Biceps Femoris Flex knee and extend hip (part of hamstring group)
Semimembranosus Flex knee and extend hip (part of hamstring group)
Semitendinosus Flex knee and extend hip (part of hamstring group)
Tibialis Anterior Dorsiflexes and inverts foot
Gastrocnemius Plantar flexes foot & flex lower leg (calf muscle)
Soleus Plantar flexes foot
Fibularis Longus Plantar flexes & everts foot
Extensor Digitorum Longus Extends toes
MAJOR MUSCLES. TRAPEZIUS- EXTENDS THE HEAD STERNOCLEIDOMASTOID- ROTATES THE NECK.
“Movers and Shakers”. A useful website
Muscles. Muscles of facial expression A. Frontalis: wrinkle skin of forehead, raise eyebrows B. Orbicularis oculi: close eyelids C. Orbicularis oris:
Major Skeletal Muscles The muscle name indicates – Location – Size – Action – Shape OR – Number of attachments of the muscle.
© 2009 The McGraw-Hill Companies, Inc. All rights reserved 26-1 Attachments and Actions: Body Movements Flexion – bending a body part Extension – straightening.
MAJOR SKELETAL MUSCLES. Naming Muscles Muscles are often named for: 1. size (pectoralis major vs. pectoralis minor) 2. shape (rhomboideus, deltoid) 3.
Muscle Identification Practice. Epicranius Occipitalis Frontalis Masseter Sternocleidomastoid Platysma Orbicularis oris Buccinator Zygomaticus minor Zygomaticus.
Orbicularis oris. Orbicularis oculi Zygomaticus major.
Anatomy & Physiology H Jefferson Township High School P. Smith Muscular System Lab Exam Diagrams (2014)
Copyright © 2010 Pearson Education, Inc. Figure 10.6 Lateral view of muscles of the scalp, face, and neck. Orbicularis oculi Zygomaticus Buccinator Orbicularis.
SKELETAL MUSCLE LAB BIO 137 Anatomy & Physiology I.
Muscles of the arms and legs. Muscles that move the forearm Biceps brachii – flexes the forearm and supinates the hand Brachialis – Flexes forearm Brachioradialis.
Skeletal Muscle Groups. Muscles of the head and neck Frontal – raises eyebrows Orbicularis oculi – closes eye Orbicularis oris – puckering Zygomaticus.
Gross Anatomy of Muscles Arm/Forearm Muscles Pages
Muscles of the Anterior & Posterior Thorax External intercostals Internal intercostals Diaphragm Pectoralis minor Pectoralis major Trapezius Rhomboids.
External Oblique (\\ or // striations) Muscles of the abdominal wall, anterior view (superficial)
Muscles. Muscles in Cranium 1.Zygomatic 2.Buccinator 3.Orbicularis oculi 4.Frontalis 5.Orbicularis oris 6.Masseter 7.Temporalis 8.Occipitalis 9.Platysma.
CHAPTER 6 The Muscular System Skeletal Muscles of the Head, Neck, Trunk, Arm and Leg STUDY GUIDE FOR TEST ON FRIDAY FEB. 10, 2012.
Muscle Diagrams Labels Anterior and Posterior Muscle Quiz Friday 11/7 Matching! Arm and Leg Muscle Quiz Wednesday 11/13 Matching!
Frontalis – Elevates eyebrow Orbicularis oculi – Flexes eye Zygomaticus – Elevates lips Orbicularis oris – Flexes lips Masseter – Elevates mandible.
THE MUSCULAR SYSTEM Part 2: Identification. OBJECTIVES Identify the major skeletal muscle of the human body Explain each identified skeletal muscle’s.
Muscles Crossing the Shoulder Nine muscles cross the shoulder joint and insert into the humerus Prime movers include: Pectoralis major – arm flexion Latissimus.
Organization of Muscle Parallel Muscles- fascicles are parallel to the long axis of the muscle Convergent Muscles- fibers are spread over a broad area,
Muscular System Final Review Human Anatomy & Physiology.
G. Muscles of the Arm * move the forearm (elbow).
8.8 Major Skeletal Muscles. What muscle names tell us Relative size Shape Location Action Number of attachments Direction of fibers.
Muscular system Hawler Medical University College of Medicine Department of Anatomy & Histology Dr. Nali Abdulkader Maaruf.
LOWER MUSCLES. Muscles of the thorax (respiratory muscles) 1. Internal Intercostals Action - Depress ribs 2. External Intercostal Action - Elevate ribs.
Circular (orbicularis oris) Convergent (pectoralis major) Parallel (sartorius) Unipennate (extensor digitorum longus) Multipennate (deltoid) Fusiform (biceps.
The Muscular System A. Interactions of Skeletal Muscles in the body 1. Agonist A) A muscle that provides the major force for producing a specific movement.
The general doctrine of muscle.. Naming Skeletal Muscles Naming Skeletal Muscles Location Location Shape Shape Size Size Direction of Fibers Direction.
BIO 210 Chapter 10 Part 2 Important Skeletal Muscles.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings MUSCLE ORIGIN, INSERTION, AND ACTION THE MUSCLULAR SYSTEM.
Direction of the muscle fibers Named in reference to an imaginary line Rectus – straight (parallel to line) Oblique – at a slant to the line Relative.
Appendicular Muscles with functions. Shoulder Muscles.
Muscular System - Diagrams. Head & Neck Muscles Frontalis: elevate eyebrows Orbicularis Oculi: close eyelid Zygomaticus: draw angle of lip upward Buccinator:
Chapter # - Chapter Title $100 $200 $300 $400 $500 $100$100$100NA $200 NANA $300 NANA $400 NANANANA $500 NANANANA Topic 1Topic 2Topic 3Topic 4 NA FINAL.
Muscle Anatomy. Origin & Insertion Levers Fascicle Arrangements.
Muscle Action Review … for Origin, Insertion & Action Test.
Entry Task: Make a table. One side with three concentric movements, one side with three eccentric movements.
Chapter 10 Muscular System. Three types of muscles 1) smooth muscles- involuntary muscles example: large and small intestines 2) Cardiac muscles- involuntary.
Head. Masseter Mandible Sternocleidomastoid Chest.
WARM UP “Challenge your mind – stretch and exercise it like any other part of your body.” 1.Why do you think this advice is important to follow? 2.Give.
Body Builder Muscles Middlesex County College Anatomy and Physiology I.
TERMS RELATING TO MUSCLES Muscles attach to at least two bones. Origin-the attachment of a muscle to the less movable bone. Usually near the axial skeleton.
Muscular System Human Anatomy and Physiology I Oklahoma City Community College Dennis Anderson.
Muscles of the Human Body ©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material.
Chapter 10. Understanding Muscles Pull never push Attach to skeleton via tendons or muscles via aponeurosis Attachment points Origin: end attaches to.
Extrinsic Shoulder Muscles Muscles of the thorax –Anterior: pectoralis major, pectoralis minor, serratus anterior, and subclavius –Posterior: latissimus.
Skeletal Muscle Review Anatomy and Physiology I Unit 8 – The Muscular System.
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