Chest & Back Anterior and Posterior Muscles Flashcards
Where is the deltoid located?
shoulder, superior to triceps brachii, lateral to trapezius and neck
What is the function of deltoids?
flexion and internal arm rotation, abduction of arm, extension and external rotation of arm
Where is the latissimus dorsi located?
back, covers almost all back muscles at posterior trunk, inferior to trapezius
What is the function of the latissimus dorsi?
shoulder joint: arm internal rotation, abduction, and extension; assists with respiration
Where is the pectoralis major located?
chest, medial to deltoid, superior to rectus abdominis
What is the function of the pectoralis major?
adduction and internal rotation of the arm in shoulder joint
Where is the serratus anterior located?
chest, lateral wall of ribcage, lateral and superior to rectus abdominis, inferior to pectoralis major
What is the function of the serratus anterior?
draws scapula anterolaterally, suspends scapula on thoracic wall, rotates scapula
Where is the trapezius located?
neck/back, posterior aspect of neck and ribcage, superior to latissimus dorsi
What is the function of the trapezius?
movement at shoulder girdle
Where are the biceps brachii located?
ventral portion of upper arm, anterior to triceps brachii
What is the function of the biceps brachii?
flexion and supination of forearm at elbow joint
Where are the triceps brachii located?
dorsal part of upper arm, posterior to biceps brachii
What is the function of triceps brachii?
extension of forearm at elbow joint
Where is the rhomboideus major located?
upper back, medial to deltoid, deep to trapezius
