Thoracis limb intrinsic muscles(arm)

what is the general function of caudal arm intrinsic muscles

extensors of elbow joint

what are the caudal muscles of the arm

1. tensor fasciae antebrachii

2. Triceps brachii

3. Anconeus

what is the action of the tensor fasciae antebrachii

extend the elbow joint

what are the 4 heads of the tricep

• long head

• acessory head

• medial head

• lateral head

what is the insertion for all the tricep heads

olecranon tuber of the ulna

list the origin and action of the long head of the tricep

origin: caudal border of the scapula

action: extend the elbow joint and flex the shoulder joint

list the origin and action of the lateral head of the tricep

origin: tricipital line of the humerus

action: extend the elbow joint

list the origin and action of the accessory tricep head

origin: neck of the humerus

action: extend the elbow

list the origin and actino of the medial tricep head

origin: lesser tubercule of the humerus

action: extend the elbow joint

if you wanted to perform surgery on the elbow the only muscle you would need to transect would be what?

the Anconeus

what is the action of the anconeus

extend the elbow

what are the cranial muscles of the arm

1. biceps brachii

2. brachialis

list the origin, insertion, and action of the biceps brachii

origin: supraglenoid tubercle

insertion: ulnar and radial tuberosities

Action: flex elbow joint and extend shoulder joint

what muscle has a tendon that passes through the intertubercular groove

biceps brachii

what is the action of the brachialis

flex the elbow

The subtendinous synovial bursa is associated with the tendon of which of the following muscles?

Infraspinatus