Lab 15 - Muscles Chest-Shoulder-Upper Analysis

Identify the anterior muscles of the chest, shoulder, and upper arm.

a

b

c

d

e

Brachialis

Pectoralis major

Biceps Brachii

Pronator teres

Serratus anterior

Trapezius

Identify the anterior muscles of the chest, shoulder, and upper arm.

a

b

c

d

e

Coracobrachialis

Serratus anterior

Brachioradialis

Pectoralis minor

Deltoid

Identify the posterior muscles of the left shoulder and arm of a cadaver. Note - The deltoid and trapezius muscles have been removed.

a

b

c

d

e

Triceps brachii

Latissimus dorsi

Infraspinatus

Rhomboid major

Levator scapulae

Identify the posterior muscles of the left shoulder and arm of a cadaver. Note - The deltoid and trapezius muscles have been removed.

a

b

c

d

Teres major

Teres minor

Rhomboid minor

Supraspinatus

Identify the anterior muscles of the right forearm of a cadaver.

a

b

c

d

Palmar aponeurosis

Biceps brachii

Flexor retinaculum

Palmaris longus

Identify the anterior muscles of the right forearm of a cadaver.

a

b

c

d

Flexor carpi radialis

Brachioradialis

Flexor digitorum

Flexor carpi ulnaris

Match the muscle with its action.

​ (a)   ​ - Abducts, extends, and flexes arm

​ (b)   ​ - Pulls arm forward (flexion) and across chest (adduction) and rotates arm medially

​ (c)   - Flexes wrist and adducts hand

​

​ (d)   - Raises ribs in forceful inhalation or pulls scapula forward and downward

• pectoralis major
• flexor carpi ulnaris
• pectoralis minor
• deltoid

Match the muscle with its action.

• Extends the forearm at the elbow

• Serratus anterior

• Extends, adducts, and rotates arm medially

• Triceps brachii

• Flexes the forearm at the elbow

• Teres major

• Extends and adducts hand at the wrist

• Extensor carpi ulnaris

• Used to thrust shoulder anteriorly

• Brachialis

Organize these options into the right categories

Groups:

(a) Rhomboid major

,

(b) Serratus anterior

,

(c) Pectoralis minor

,

(d) Teres major

• 
• O: Sternal ends of ribs 3–5

• O: Lateral border of scapula

• 
• 
• I: Intertubercular sulcus of humerus

• O: Spinous processes of thoracic

• I: Medial border of scapula

• O: Lateral surfaces of most ribs

• 
• I: Coracoid process of scapula

Tags

NGSS.MS-LS4-2

Organize these options into the right categories

Groups:

(a) Subscapularis

,

(b) Teres minor

,

(c) Brachialis

,

(d) Palmaris longus

• 
• I: Lesser tubercle of humerus

• 
• I: Palmar aponeurosis

• O: Subscapular fossa of scapula

• 
• I: Greater tubercle of humerus

• 
• O: Distal anterior shaft of humerus

• I: Coronoid process of ulna

• O: Lateral border of scapula