T2- Ant of Ext. Lab 1 Midterm Flashcards
(129 cards)
On the AC side of the clavicle there is what two lig. attachments
trapezoid (more lat)
Conoid (more medial to the trapezoid)
Where is the CONOID located ?
it is a tubercle on the inferior side of the clavicle
_____ lig. depression on the SC side of the clavicle
costoclavicular Lig.
What M has its insertion on the superior side of the clavicle
trapezius
AC side
M. origins on the superior clavicle
deltoid
SCM
Pectoralis Major
M that has an insertion on the inferior side of the clavicle
subclavius M
M.s that have an origin on the inferior side of the clavicle
deltoid (O: on sup. also) Pectoralis Major (O: on sup. also) Sternohyoid
List M. who have an origin on the lateral epicondyle
extensor carpi radialis brevis
extensor digitorm
extensor digiti minimi
extensor carpi ulnaris
(the superficial extensors)
2 lig. with an attachment on the SC portion of the clavicle
anterior sternoclavicular lig
Costoclavicular lig
Which two extensor M do not have an insertion on the lateral epicondyle
brachioradialis
Extensor carpi radialis longus
Origin of the extensor carpi radialis longus
Lateral supracondylar ridge
The _____ M are off of the lateral epicondyles
extensors
Origin nd insertion of the bicep brachii (short head)
O: Coracoid process
I: radial tuberosity
Origin and Insertion of the bicep brachii (long head)
O: Supraglenoid tubercle of scap
I: Radial tuberosity
Where is the CORACOID process located ?
scapula
Action of the biceps
resists dislocation of shoulder
Supination of forearm
Flexes forearm
action of the coracobrachialis
Flex arm
Adduct arm
(chest fly M)
What is the only anterior brachium M that has its origin on the humerus
Brachialis
O & I of the brachialis
O: distal half of the humerus
I: coronoid process of the ulna
What bone does the bracialis insert on ?
coronoid process of the ulna
Action of the brachialis
flexes forearm in all directions
up-side down curls
M pierced by the musculocutaneous N
Coracobrachialis
Which part of the bracip is most likely to be ruputred ?
long head
What M have their Origin on the anterior portion of the scap
Omohyoid
Subscapularis
Tricep (long head)