Stu’s Questions Flashcards
The Thenar Muscles all cont Ian this word in their name.
Pollicis
What represents the bottom (proximal) row of carpal bones?
Scaphoid, lunate, triquetrum, pisiform
What is the origin of the abductor pollicis brevis?
Scaphoid and flexor retinaculum
The capitate articulates with what metacarpals?
3 only
The median nerve supplies which lumbricals?
The lateral pair
The origin of the transverse head of adductor pollicis is…?
Metacarpal 3
The interossei cause…?
Extension of IP joints and flexion of MP joints
A patient loses feeling on their posterior hand, but can still feel their fingertips. What nerve is affected?
Radial nerve
What is the common extensor origin (CEO)?
Medial epicondyle
Flexor carpi radialis inserts on what metacarpals?
2 and 3
Running through the carpal tunnel are the…?
Median nerve and deep flexors
Flexor carpi ulnaris inserts on…?
Pisiform, hamate, and metacarpal 5
The origin of the flexor digitorum superficialis includes all of…?
Medial epicondyle
What is NOT a deep muscle of the forearm?
Palmaris longus
Extensor carpi radialis brevis inserts onto…?
Metacarpal 3
What nerve innervates the entire posterior forearm?
Radial nerve
What is the order of the 3 snuff box components from lateral to medial?
Abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis
What is the only arm muscle that doesn’t attach to the humerus?
Biceps brachii
What is the origin of the LONG head of the bicep?
Supraglenoid tubercle
What is the insertion of the brachialis?
Ulnar tubercle
What is the origin of the LONG head of the triceps?
Infraglenoid tubercle
What is the origin of the LATERAL head of the triceps?
Proximal humerus
The coracobrachialis shares an attachment (origin or insertion) with…?
Short head of biceps and pectoralis minor
In the HAND, the median nerve supplies…?
Thenar muscles and the lateral 2 lumbricals
Where does the teres minor insert?
Inferior facet of greater tubercle
What is the action of the supraspinatus?
Abduction
The infraspinatus is mainly a…?
Lateral rotator
What is the origin of the teres minor?
Lower lateral border of scapula
What is the only rotator cuff muscle that inserts on the lesser tubercle?
Subscapularis
Medial rotators of the arm include…?
Subscapularis, pectoralis minor, latissimus dorsi
The posterior deltoid performs ______ of the arm?
Extension
What is the origin of the pectoralis minor?
Ribs 3-5
What is the origin of the coastal head of the pectoralis major?
6 upper coastal cartilages and adjoining sternum
What is the insertion of the teres major?
Medial lip of bicipital groove
Upward rotation of the glenoid fossa is done by…?
Upper and lower trapezius
The rhomboids do what…?
- Elevate the scapula
- Downward rotation of glenoid fossa
The owner trapezius fibres rotate the glenoid fossa (TRUE/FALSE)
False
If the medial CORD of the brachial plexus was severed, what arm movement would be most affected?
Adduction and medial rotation
What would be NOT likely detected in a patient whose median nerve was severed in the arm?
Paralysis of 2 major muscles in the arm that move the elbow joint
The symptom of numbness in the palmar region often associated with carpal tunnel syndrome is caused by…?
Compression of the median nerve within the carpal tunnel
The long thoracic nerve comes from…?
C5, C6, C7
