FLAG TEST 2 REVIEW

Activity 1: Shoulder and Axilla

  • I

Activity 2: Shoulder and Axilla

  • Identify Structures A, B, C:

    • Structure A: (Specific structure to be identified)

    • Structure B: (Specific structure to be identified)

    • Structure C: (Specific structure to be identified)

  • Medial Wall of Axilla Structure:

    • Name the structure that forms the medial wall of the axilla: Serratus Anterior.

  • Actions of Flagged Structures A and B:

    • Action of Structure A: (Describe action)

    • Action of Structure B: (Describe action)

  • Artery in Axilla:

    • Name the artery found in the axilla: Axillary Artery, which originates from the Subclavian Artery.

  • Parts of Brachial Plexus in Axilla:

    • Identify which part you find in the axilla:

    • (i) Roots of Brachial Plexus

    • (ii) Trunks of Brachial Plexus

    • (iii) Cords of Brachial Plexus

    • (iv) Divisions of Brachial Plexus

create a table of actions of the pectoralis major, latisimus dorsi, rhomboid minor and major muscle and the trapezius muscle:

Muscle

Action

Pectoralis Major

Flexion, adduction, and medial rotation of the shoulder

Latissimus Dorsi

Extension, adduction, and medial rotation of the shoulder

Rhomboid Minor

Retraction and elevation of the scapula; assists in downward rotation

Rhomboid Major

Retraction and elevation of the scapula; assists in downward rotation

Trapezius

Elevation, retraction, and rotation of the scapula; assists in shoulder elevation.

muscles supplied by muscultaneous, axillary, radial, medial and ulnar nerves of brachial plexus:

  • Biceps Brachii, Corecobrachialis and brachialis.: Responsible for elbow flexion and forearm supination, supplied by musculocutaneous nerve.

  • Deltoid and Teres minor: Facilitates shoulder abduction and flexion, innervated by the axillary nerve.

  • Triceps Brachii: Primarily involved in elbow extension, supplied by the radial nerve.

  • Flexor Group of Forearm: Includes muscles that flex the wrist and fingers, innervated by the median and ulnar nerves.

  • So which wall of the axilla is formed by Pectoralis major ? The anterior wall of the axilla is formed by the Pectoralis major, which plays a crucial role in shoulder movement.

create table of upper half of the upper body muscles and their actions : include serratus anterior

Muscle

Action

Pectoralis Major

Flexes, adducts, and rotates the humerus

Serratus Anterior

Protracts and stabilizes the scapula

Deltoid

Abducts, flexes, and extends the humerus

Trapezius

Elevates, retracts, and rotates the scapula

Latissimus Dorsi

Extends, adducts, and medially rotates the arm

Muscle

Action

Pectoralis Major

Flexes, adducts, and medially rotates the shoulder

Deltoid

Abducts, flexes, and extends the shoulder

Biceps Brachii

Flexes the elbow and supinates the forearm

Triceps Brachii

Extends the elbow

Coracobrachialis

Flexes and adducts the shoulder

Supraspinatus

Abducts the arm

Infraspinatus

Externally rotates the arm

Teres Minor

Externally rotates the arm

Subscapularis

Internally rotates the arm

which mucles attach to bicipital groove?

  • Pectoralis Major

  • Latissimus Dorsi

  • Teres Major

  • Axillary Artery - RED

  • Axillary Vein- Blue

  • LC-lateral Cord

  • PC- Posterior Cord

  • MC-Medial Cord

create table of which muscles and ligaments are attches to corocoid process, acromion process, scpaula and clavicle and greater, lesser tubercle, head of humerus:

Location

Muscles/Ligaments Attached

Coracoid Process

- Coracobrachialis

- Short head of Biceps Brachii

- Pectoralis Minor

- Conoid ligament

- Trapezoid ligament

Acromion Process

- Deltoid

- Upper Trapezius

Scapula

- Subscapularis

- Infraspinatus

- Supraspinatus

- Teres Major

- Teres Minor

Clavicle

- Sternocleidomastoid

- Pectoralis Major

Greater Tubercle

ALL SITS MUSCLES ROTATOR CUFF- Supraspinatus

- Infraspinatus

Lesser Tubercle

- Subscapularis

Head of Humerus

- Long head of Biceps Brachii

- Rotator Cuff Muscles (overall support from all four)

Create table, Musculotaneous, Axillary, Radial, Median and Ulnar nerves and which muscles do they supply?

Nerve

Muscles Supplied

Musculocutaneous

Biceps Brachii, Brachialis, Coracobrachialis

Axillary

Deltoid, Teres Minor

Radial

Triceps Brachii, Anconeus, Extensor muscles of the forearm

Median

Flexor muscles in the forearm (except for flexor carpi ulnaris), some hand muscles

Ulnar

Flexor carpi ulnaris, Flexor digitorum profundus (medial half), most intrinsic hand muscles