Shared Flashcard Set

Details

shoulder muscles
Muscles, function, innervation, spinal cord nerve fibers (rotator cuff and more)
11
Anatomy
Graduate
09/06/2012

Additional Anatomy Flashcards

 


 

Cards

Term
trapezius
Definition

Function: lateral rotation of scapula

raises arm from 90 degrees to over the head

 

innervation: spinal part of accessory nerve (CN XI)

Term
levator scapulae 
Definition

function: elevates the scapula

 

innervation: dorsal scapular nerve; C5

Term
rhomboid major and minor
Definition

function: retract and help hold scapula in place

 

innervation: dorsal scapular nerve; C5

Term
deltoid 
Definition

function: primary abductor of arm, raises arm from 10 degrees to 90 degrees

 

innervation: axillary nerve; C5 & C6

Term
supraspinitus 
Definition

function: abducts arm 5-10 degrees; used to lift heavy weight off floor

 

innervation: suprascapular nerve; C5 & C6

 

 

Term
infraspinitus
Definition

function: laterally rotates humerus 

 

innervation: suprascapular nerve; C5 & C6

Term
teres minor
Definition

function: externally/laterally rotates humerus

 

innervation: axillary nerve; C5 & C6

Term
subscapularis 
Definition

function: medially/interally rotates the humerus

 

innervation: upper and lower subscapularis nerves; C5 & C6

Term
teres major
Definition

function: internal/medial roation of humerus; extends humerus

 

innervation: lower subscapularis nerve; C5 & C6

Term
serratus anterior
Definition

function: protracts/holds scapula to the body; elevates the scapula

 

innervation: long thoracic nerve; C5 C6 C7

Term
latissmus dorsi
Definition

function: extends humerus ("swimmer's muscle"); internal/medial rotation of humerus; adducts arm

 

innervation: thoracodorsal nerve; C5 C6 C7

Supporting users have an ad free experience!