Anatomy Week 9 Part 3

Front 1

what are the anterior chest muscles

Back 1

subclavious muscle
pectoralis major
serratus anterior
pectoralis minor

Front 2

subclavious muscle - nerve and perfusion

Back 2

N - nerve to the subclavious (off superior trunk VR C5-6)

P - clavicular branch of thoracoacromial trunk

Front 3

pectoralis major - nerve and perfusion

Back 3

N - both lateral and medial pectoral nerves from brachial plexus

P - pectoral branch from thoracoacromial

Front 4

serratus anterior - nerve and perfusion

Back 4

N - long thoracic nerve (VR C5-C7)

P - lateral thoracic aa (from axillary aa)

Front 5

pectoralis minor - nerve and perfusion

Back 5

N - lateral and medial pectoral nerves from brachial plexus

P - pectoral branch from thoracoacromial trunk

Front 6

subclavius mm - O/I/A

Back 6

O - junction of first rib and costal cartilage

I - inferior surface of clavicle

A - depresses lateral part of clavicle

Front 7

pectoralis major muscle - O/I/A

Back 7

O - medial half of clavicle; manubirum and body of sternum; upper six costal cartilages

I - lateral lip of intertubercular groove of humerus

A - flexes, adducts, and medially rotates arm

Front 8

serratus anterior - O/I/A

Back 8

O - upper eight ribs

I - medial border of scapula

A - rotates scapula upward
abducts scapula with arm and elevates it above the horizontal

Front 9

pectoralis minor - O/I/A

Back 9

O - third, fourth, and fifth ribs

I - coracoid process of scapula

A - depresses scapula
elevates ribs

Front 10

deltoid - nerve and perfusion

Back 10

N - axillary nerve

P - ?

Front 11

deltoid - O/I/A

Back 11

O - lateral third of clavicle, acromion, and spine of scapula

I - deltoid tuberosity of humerous

A - abducts, adducts, flexes, extends, and rotates arm medially and laterally

Front 12

teres minor - nerve and perfusion

Back 12

N - axillary

P - ?

Front 13

teres minor - O/I/A

Back 13

O - upper portion of lateral border of scapula

I - lower facet of greater tubercle of humerus

A - rotates arm laterally