Upper Extremity - Fascial Compartments

Front 1

Fascia septas

Back 1

medial fascia and lateral fascia

extend from sheath to medial and lateral supracondylar ridges of humerus

anterior and posterior fascial compartments

Front 2

Upper arm

Contents of anterior fascial compartment

Back 2

Muscles -Biceps brachii, coracobrachialis and brachialis

blood supply - brachial artery

nerve supply - musculocutaneous nerve

Front 3

Back 3

muscles of anterior compartment of arm

Front 4

Biceps Brachii - how many heads are there?

Back 4

Long head

Short head

Front 5

Long head of biceps brachii

Back 5

or. supraglenoid tubercle of scapula

in. tuberosity of radius, aponeurosis into deep fascia of forearm

nerve supply. muscutaneous nerve

action. supinator of forearm, flexor of elbow joint, weak flexor of shoulder joint

Front 6

Short head of biceps

Back 6

or. coracoid process of scapula

in, nerve, action - same as long head

Front 7

Coracobrachialis

Back 7

or. coracoid process of scapula

in. medial aspect of shaft of humerus

nerve. musculocutaneous nerve

ac. flexes arm, weak adductor

Front 8

Brachialis

Back 8

or. front of lower half of humerus

in. coronoid process of ulna

nerve. musculocutaneous nerve

ac. flexor of elbow joint

Front 9

Posterior compartment of the upper arm

Back 9

muscles: 3 heads of triceps muscle

nerve supply: radial nerve

Blood supply: profunda brachii and ulnar collateral arteries.

Front 10

Triceps

Back 10

Long head

Lateral head

Medial head

Front 11

Long head of triceps

Back 11

or. Infraglenoid tubercle of scapula

in. olecanon process of uln

ac. extensor of elbow joint

Front 12

Lateral head of triceps

Back 12

or. upper posterior surface of shaft of humerus

in. olecanon surface of ulna

ac, extensor of elbow joint

Front 13

Medial head of triceps

Back 13

or. lower posterior surface of shaft of humerus

in. olecranon surfce of ulna

nerve. radial nerve

ac. extensor of elbow joint

Front 14

Anconeus

Back 14

small triangular muscle being elbow joint.

arises: posterior - lateral epicondyle of humerus

attaches: lateral surface of olecranon and posterior surface of ulna