A&P 1- Chapter 16 Review Questions PDF

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A&P 1: Chapter 16 Review Questions 1. Name the main muscles of the shoulder, arm, forearm, thigh, and leg. a. Shoulder b. Arm c. Forearm d. Thigh e. Leg 2. Name the main muscles that flex, extend, abduct and adduct the arm; that raise and lower the shoulder. a. Flex Arm i. Axial 1. Pectoralis Major ii. Scapular (assists) 1. Deltoid 2. Coracobrachialis (assists) b. Extend Arm i. Axial 1. Latissimus dorsi ii. Scapular (assists) 1. Deltoid 2. Teres major (assists) c. Abduct Arm i. Scapular 1. Deltoid 2. Supraspinatus (assists) d. Adduct Arm i. Axial 1. Anteriorly a. Pectoralis Major 2. Posteriorly a. Latissimus dorsi ii. Scapular 1. Coracobrachialis 2. Teres major (assists) e. Raise Shoulder i. Trapezius 3. Name the main muscles that flex and extend the forearm, that flex and extend the wrist and hand. a. Flex Forearm i. Flexors 1. Brachialis a. Supinated i. Biceps brachii b. Semipronated or semisupinated i. Brachioradialis Page 1 of 3

A&P 1: Chapter 16 Review Questions ii. Pronators 1. Pronates and flexes the forearm a. Pronator teres b. Extend Forearm i. Extensors 1. Extends lower arm a. Triceps brachii c. Flex Wrist and Hand i. Extrinsic 1. Flexor carpi radialis 2. Palmaris longus 3. Flexor carpi ulnaris Extend Wrist and Hand ii. Extrinsic 1. Extensor carpi radialis longus 2. Extensor carpi radialis brevis 3. Extensor carpi ulanris 4. Which muscle allows the thumb to be drawn across the palm to touch the tip of any finger? a. The opponens pollicis 5. Name the main muscles that flex, extend, abduct, and adduct the thigh; that flex and extend the leg and thigh; that flex and extend the foot. a. Flex Thigh i. Iliopsoas 1. Iliacus 2. Psoas major 3. Psoas minor ii. Rectus femoris b. Extend Thigh i. Gluteus maximus c. Abduct Thigh i. Gluteus medius 1. Rotates outward ii. Gluteus minimus 1. Rotates medially iii. Tensor fascia latae 1. Tightens iliotibial tract d. Adduct Thigh i. Adductor group 1. Brevis 2. Longus 3. Magnus e. Flex Thigh & Extend Leg i. Rectus femoris Page 2 of 3

A&P 1: Chapter 16 Review Questions f.

Flexes Leg & Extend Thigh i. Hamstring group 1. Biceps femoris 2. Semitendinosus 3. Semimembranosus g. Flex Foot i. Extrinsic 1. Tibialis anterior 2. Fibularis brevis 3. Fibularis tertius h. Extend Foot i. Extrinsic 1. Gastrocnemius 2. Soleus 3. Fibularis longus 6. Of the gluteal muscles, which one is often the site of intramuscular injections? a. The gluteus medius 7. Identify a pair of muscles that are both synergist and antagonist with regard to the arm. Suggest which attachment allows them to be connected in this fashion. a. Movement patterns are complex, and most muscles function not only as prime movers but also as antagonists, synergists, or fixators. A prime mover in a particular movement pattern, such as flexion, may be an antagonist during extension or a synergist or fixator in other types of movement. i. Examples: 1. Latissimus dorsi and pectoralis major 2. Biceps branchii and triceps branchii 3. Fascicles

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