Muscles of the upper and lower Extremities Copyright

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Muscles of the upper and lower Extremities Copyright © 2003 Pearson Education, Inc. publishing

Muscles of the upper and lower Extremities Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder • Nine muscles cross the shoulder joint and insert into

Muscles Crossing the Shoulder • Nine muscles cross the shoulder joint and insert into the humerus • Prime movers include: • Pectoralis major – arm flexion • Latissimus dorsi and posterior fibers of the deltoid – arm extension • Middle fibers of the deltoid – arm abduction Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Superficial Muscles of the Anterior Thorax Copyright © 2003 Pearson Education, Inc. publishing as

Superficial Muscles of the Anterior Thorax Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Superficial Muscles of the Back: Posterior Thorax PLAY Rotator cuff muscles: an overview (a)

Superficial Muscles of the Back: Posterior Thorax PLAY Rotator cuff muscles: an overview (a) PLAY Rotator cuff muscles: an overview (b) Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder • Rotator cuff muscles – supraspinatus, infraspinatus, teres minor, and

Muscles Crossing the Shoulder • Rotator cuff muscles – supraspinatus, infraspinatus, teres minor, and subscapularis • Function mainly to reinforce the capsule of the shoulder • Secondarily act as synergists and fixators • The coracobrachialis and teres major: • Act as synergists • Do not contribute to reinforcement of the shoulder joint Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Shoulder Joint • Movements of the arm • Latissimus dorsi •

Muscles Crossing the Shoulder Joint • Movements of the arm • Latissimus dorsi • Supraspinatus • Infraspinatus • Teres minor • Teres major • Coracobrachialis • Subscapularis PLAY Movement at the glenohumeral joint: an overview Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles Crossing the Elbow • Forearm extension • The triceps brachii is the prime

Muscles Crossing the Elbow • Forearm extension • The triceps brachii is the prime mover of forearm extension • Forearm flexion • Brachialis and biceps brachii are the chief forearm flexion • The brachioradialis acts as a synergist and helps stabilize the elbow Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscle Compartments of the Arm and Forearm Copyright © 2003 Pearson Education, Inc. publishing

Muscle Compartments of the Arm and Forearm Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscle Compartments of the Arm and Forearm Copyright © 2003 Pearson Education, Inc. publishing

Muscle Compartments of the Arm and Forearm Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Forearm: Anterior Compartment • These muscles are primarily flexors of the

Muscles of the Forearm: Anterior Compartment • These muscles are primarily flexors of the wrist and fingers Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Forearm: Anterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as

Muscles of the Forearm: Anterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Forearm: Posterior Compartment • These muscles are primarily extensors of the

Muscles of the Forearm: Posterior Compartment • These muscles are primarily extensors of the wrist and fingers Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Forearm: Posterior Compartment • These muscles are primarily extensors of the

Muscles of the Forearm: Posterior Compartment • These muscles are primarily extensors of the wrist and fingers Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Lower Limbs • Most anterior compartment muscles of the hip and

Muscles of the Lower Limbs • Most anterior compartment muscles of the hip and thigh flex the femur at the hip and extend the leg at the knee • Posterior compartment muscles of the hip and thigh extend the thigh and flex the leg • The medial compartment muscles all adduct the thigh • These three groups are enclosed by the fascia lata Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Limb Muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Limb Muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscle Compartments of the Thigh • Posterior compartment muscles • Extend the hip and

Muscle Compartments of the Thigh • Posterior compartment muscles • Extend the hip and flex the knee • Innervation is the tibial branch of the sciatic nerve • Anterior compartment muscles • Flex the hip and extend the knee • Innervation is the femoral nerve • Medial compartment • Adduct the thigh • Innervation is the obturator nerve Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Movements of the Thigh at the Hip: Flexion and Extension • The ball-and-socket hip

Movements of the Thigh at the Hip: Flexion and Extension • The ball-and-socket hip joint permits flexion, extension, abduction, adduction, circumduction, and rotation • The most important thigh flexors are the iliopsoas (prime mover), tensor fasciae latae, and rectus femoris • The medially located adductor muscles and sartorius assist in thigh flexion • Thigh extension is primarily effected by the hamstring muscles (biceps femoris, semitendinosus, and semimembranosus) • Forceful extension is aided by the gluteus maximus Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Anterior and Medial Thigh muscle compartment Copyright © 2003 Pearson Education, Inc. publishing as

Anterior and Medial Thigh muscle compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Movements of the Thigh at the Hip: Other Movements • Abduction and rotation are

Movements of the Thigh at the Hip: Other Movements • Abduction and rotation are effected by the gluteus medius and minimus, • Thigh adduction is the role of five adductor muscles (adductor magnus, longus, and brevis; the pectineus, and the gracilis) Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Gluteal and posterior Thigh compartment muscles Copyright © 2003 Pearson Education, Inc. publishing as

Gluteal and posterior Thigh compartment muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Gluteal region Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Gluteal region Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Movements of the Knee Joint • The sole extensor of the knee is the

Movements of the Knee Joint • The sole extensor of the knee is the quadriceps femoris • The hamstring muscles flex the knee, and are antagonists to the quadriceps femoris Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscle Compartments of the Thigh and Leg Copyright © 2003 Pearson Education, Inc. publishing

Muscle Compartments of the Thigh and Leg Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Leg: Movements • Various leg muscles produce the following movements at

Muscles of the Leg: Movements • Various leg muscles produce the following movements at the: • Ankle – dorsiflexion and plantar flexion • Intertarsal joints – inversion and eversion of the foot • Toes – flexion and extension Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Anterior Compartment • These muscles are the primary toe extensors and

Muscles of the Anterior Compartment • These muscles are the primary toe extensors and ankle dorsiflexors • They include the tibialis anterior, extensor digitorum longus, extensor hallucis longus, and fibularis tertius Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Anterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin

Muscles of the Anterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Lateral Compartment • These muscles plantar flex and evert the foot

Muscles of the Lateral Compartment • These muscles plantar flex and evert the foot • They include the fibularis longus and fibularis brevis muscles Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Lateral Compartment Peronios Copyright © 2003 Pearson Education, Inc. publishing as

Muscles of the Lateral Compartment Peronios Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Posterior Compartment • These muscles primarily flex the foot and the

Muscles of the Posterior Compartment • These muscles primarily flex the foot and the toes • They include the gastrocnemius, soleus, tibialis posterior, flexor digitorum longus, and flexor hallucis longus Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Posterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin

Muscles of the Posterior Compartment Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Muscles of the Posterior Compartment Deep M Copyright © 2003 Pearson Education, Inc. publishing

Muscles of the Posterior Compartment Deep M Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings

Chapter 16 Splinting Extremities Splinting Extremities Injured extremitiesChapter 16 Splinting Extremities Splinting Extremities Injured extremities
LOWER MUSCLES Muscles of the thorax respiratory musclesLOWER MUSCLES Muscles of the thorax respiratory muscles
LOWER MUSCLES Muscles of the thorax respiratory musclesLOWER MUSCLES Muscles of the thorax respiratory muscles
MUSCLES EXTREMITIES AP I Lab Muscles of shoulderMUSCLES EXTREMITIES AP I Lab Muscles of shoulder
Muscles of the shoulder and upper extremities DrMuscles of the shoulder and upper extremities Dr
Lower limb Muscles of lower limb muscles ofLower limb Muscles of lower limb muscles of
Shoulder Back Upper Extremities Muscles Dr Nabil KhouriShoulder Back Upper Extremities Muscles Dr Nabil Khouri
Muscles of the lower extremities Dr Nabil khouriMuscles of the lower extremities Dr Nabil khouri
Chapter 13 Injuries to the Upper Extremities UpperChapter 13 Injuries to the Upper Extremities Upper
LOWER EXTREMITY LOWER EXTREMITIES RT 123 WK 11LOWER EXTREMITY LOWER EXTREMITIES RT 123 WK 11
CHAPTER 7 Muscles and Joints Muscles Overview MusclesCHAPTER 7 Muscles and Joints Muscles Overview Muscles
Back muscles occipital muscles Muscles fasciae and movementsBack muscles occipital muscles Muscles fasciae and movements
CHAPTER 7 Muscles and Joints Muscles Overview MusclesCHAPTER 7 Muscles and Joints Muscles Overview Muscles
Connective Tissue Functions Connects Muscles to muscles MusclesConnective Tissue Functions Connects Muscles to muscles Muscles
LIMB MUSCLES Limb muscles Muscles of the limbLIMB MUSCLES Limb muscles Muscles of the limb
MUSCLES MUSCLES 1 There are over 600 musclesMUSCLES MUSCLES 1 There are over 600 muscles
MUSCLES MUSCLES 1 There are over 600 musclesMUSCLES MUSCLES 1 There are over 600 muscles
ABDOMINAL MUSCLES ABDOMINAL MUSCLES Abdominal muscles have beenABDOMINAL MUSCLES ABDOMINAL MUSCLES Abdominal muscles have been
Head neck Muscles of head Facial muscles musclesHead neck Muscles of head Facial muscles muscles
Muscles of the Trunk Back muscles Extrinsic musclesMuscles of the Trunk Back muscles Extrinsic muscles
UPPER MUSCLES Muscles of the face and masticationUPPER MUSCLES Muscles of the face and mastication
Muscles of the Pelvis and Lower Limbs MusclesMuscles of the Pelvis and Lower Limbs Muscles
Chapter 12 Appendicular muscles Upper limb muscles toChapter 12 Appendicular muscles Upper limb muscles to
Muscles of the Upper Body Abdominal Muscles AbdominalMuscles of the Upper Body Abdominal Muscles Abdominal