module 4 Flashcards
the one main superficial posterior muscle that attaches the axial skeleton to the pectoral girdle
the trapezius
the _________ and the ________ are the anterior muscles that attach the axial skeleton to the pectoral girdle
serratus anterior and pectoralis minor
the ________ extends the humerus
latissimus doris
the _________ flexes the humerus
pectoralis major
the main superficial muscle that moves the humerus. this muscle abducts the arm
deltoid muscle
the four rotator cuff muscles
- Supraspinatus
- Infraspinatus
- Teres minor
- Subscapularis
________ controls internal rotation and lifting of the arm
Supraspinatus
_________ allows you to externally rotate your arm in the shoulder socket
Infraspinatus
________ is a small muscle that helps rotate your arm
Teres minor
controls arm abduction (holding your arm out straight, away from your body)
Subscapularis
________ flexes the forearm
bicep brachii
________ extends the forearm
tricep brachii
________ and ________ flex the wrist
flexor carpi radialis and flexor carpi ulnaris
the flexor carpi radialis and flexor carpi ulnaris common origin
medial epicondyle
________ and _______ extend the wrist
extensor carpi radialis and extensor carpi ulnaris
