Study sets, textbooks, questions
Upgrade to remove ads
Extensor region of the forearm and dorsum of the hand
gabbi's dissection pg 53-57
Terms in this set (22)
what nerve innervates the extensor muscles of the forearm?
the deep branch of the radial nerve
Name the six superficial extensor muscles
brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitiorum, extensor digiti minimi and extensor carpi ulnaris
which four of the superficial extensor muscles originate from the common extensor tendon at the lateral epicondyle of the humerus?
extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris)
Name the insertion and action of the brachioradialis
lateral surface of the distal radius, to weakly flex the forearm when it's midpronated
Name the insertion of the extensor carpi radialis longus tendon
base of metacarpal 2
Name the insertion of the extensor carpi radialis brevis tendon
base of metacarpal 3
Name the insertion of the extensor digitorum tendons
extensor expansions of digits 2-5
Name the insertion of the extensor digiti minimi tendon
extensor expansion of digit 5
Name the insertion of the extensor carpi ulnaris tendon
base of metacarpal 5
the tendons of which muscle are tied together by intertendinous connections on the dorsum of the hand?
tendons of the extensor digitorum
The extensor expansion is found at which joint
Name the five deep extensor muscle of the forearm
supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, and extensor indicis
Name the distal insertion of all five of these muscles starting with abductor pollicis longus (we'll skip supinator for now)
base of metacarpal 1
extensor pollicis brevis
base of the proximal phalynx of digit 1
extensor pollicis longus
base of teh distal phalynx of digit 1
extensor expansion of digit 2
Name the boundaries of the anatomical snuffbox
anteriorly by the abductor pollicis longus tendon and extensor pollicis brevis tendon, and posteriorly by the extensor pollicis longus tendon (atlas plate 456)
what artery will you find in the anatomical snuff box?
the radial artery
the radial artery disappears distally into what muscle?
between the two heads of the first dorsal inerosseous muscle
Name the proximal and distal attachments, and innervation of the supinator muscle
proximal at the lateral epicondyle of the humerus, the radial collateral and annular ligaments of the elbow, and the lateral surface of the ulna. Distal at the proximal one-third of the radius. Innervated by the deep branch of the radial nerve
where can you find the deep branch of the radial nerve?
piercing the supinator muscle and emerging from the distal border of the supinator muscle as the posterior interosseous nerve (provides motor branches to the extensors)
from what is the posterior interosseus artery a branch?
the common interosseuos artery off the ulnar
Sets found in the same folder
Scapular region, brachial plexus, axilla
Palm of Hand
Cutaneous vv/nn of LL Gluteal region Lab 34
Sets with similar terms
Ankle and Foot Anatomy and Pathologies
EXSS 175 Studying for Muscles
Anatomy - Ligaments, Arteries, Veins, Ne…
bonus quiz 4 ?S
Other sets by this creator