Abductor and Adductor
This muscle abducts the thumb at the CMC joint.
Abductor Pollicis Brevis
Which nerve innervates the Adductor Pollicis?
Ulnar Nerve
What does the flexor pollicis brevis do?
Flex the thumb
How many carpal bones are found in one hand?
8
These muscles bring the fingers toward the middle finger.
Palmar Interossei
How many intrinsic hand/wrist muscles are innervated by the median nerve?
4
Which muscle opposes the pollicis
The opponens pollicis
Which finger has only two phalanges instead of three?
These four muscles abduct digits 2-5 at the MCP Joint
Dorsal Interossei
Which nerves innervate the flexor pollicis brevis?
Median and Ulnar
What muscle flexes the pinky?
The Flexor Digit Minimi Brevis
How many phalanges are found in one hand
14
Which muscle allows the 5th digit to move away from the 4th digit
Abductor Digiti Minimi
List the hand/wrist muscles innervated by the radial nerve
None
Which muscle extends the middle and distal phalanges?
Lumbricals
This nerve is compressed in carpal tunnel syndrome
Median Nerve
A patient cannot spread their fingers apart against resistance. Which intrinsic hand muscles are most likely weak.
Dorsal Interossei
What nerves innervates the lumbricals? Which fingers are moved by these nerves?
Median Nerve - 2 and 3, and Ulnar Nerve - 4 and 5
Which muscle flexes the proximal phalanges of digit 5
Flexor Digiti Minimi Brevis
These are the four small intrinsic muscles of the hand associated with the index, middle, ring, and pinky
Lumbricals