anatomy final Flashcards
What is the primary action of the supraspinatus?
Abduct shoulder
Teres Minor inserts onto which structure and what is the innervation of this muscle?
I: Inferior facet of greater tubercle
N: axillary nerve
Pectoralis major action and insertion point?
A: All fibers: adduct and medially rotate shoulder, elevate thorax
Upper fibers: flex and horizontally rotate shoulder
Lower fibers: extend shoulder
I: Crest of greater tubercle of humerus
Pec minor origin?
3rd-5th ribs
Long Thoracic nerve innervates which muscle?
Serratus anterior
Thoracodorsal Innervates which muscle?
Latissimus dorsi
Name the 3 primary upward rotators of the scapula?
Upper and lower fibers of trapezius
Serratus anterior
Biceps Brachii short/long head- name both origins and insertion point?
O: Short head: coracoid process
Long head: supraglenoid tubercle
I: tuberosity of radius and aponeurosis of biceps brachii
Triceps Long head origin?
infraglenoid tubercle of the scapula
Subscapularis insertion?
Lesser tubercle
Trapezoid and the conoid ligaments make up which major ligament?
coracoclavicular
What type of joints are the AC and SC?
planer
Which myotome would be involved with elbow flexion? Which would be involved with finger abduction?
Elbow flexion: C6
Finger abduction: T1
Which muscles originate on the medial epicondyle?
Pronator teres
Flexor digitorum superficialis
Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus
Which muscles originate on the lateral epicondyle?
Extensor carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris
supinator
Ulnar nerve innervates which muscle(s) of the forearm?
Flexor carpi ulnaris
What is the origin of the pronator teres?
Medial epicondyle and coranoid process
What is the origin of the Supinator?
Lateral epicondyle
Where does the Flexor carpi Radialis insert?
Base of 2nd metacarpal
Where does the Extensor carpi Radialis Longus and where does the Extensor Carpi radialis brevis insert?
Longus: dorsal base of 2nd metacarpal
Brevis: dorsal base of 3rd metacarpal
Action(s) of the Extensor Digiti Minimi
extend and abduct 5th finger, extend and ulnar deviate wrist
action(s) of the Extensor indicis
extends index finger, extends wrist
Which main nerve branch(es) come off the medial cord of the brachial plexus?
Ulnar
median
Which main nerve branch(es) come off the posterior cord of the brachial plexus?
axillary
median