Exam 7: peripheral nervous system Flashcards
Anesthesia
no sensation (at a certain body are)
Paresthesia
abnormal sensations (tingling, pins and needles, unusual nerve pain, feeling hot or cold)
neuropathy
pathology of the nerve fibers or transmission of information; often results in anesthesia, paresthesia, chronic pain
where is the median nerve located
down the middle of the forearm on the ventral side; covers the thumb, pointer, middle, and half of ring finger, palm, and fingertips of designated fingers on the dorsal side
what is the median nerve involved in
flexion and allows us to grip
high median nerve injury
proximal forearm or above; loss of wrist flexion strength; ulnar deviation of the wrist; loss of thumb opposition; loss of finger flexion of thumb, index, middle, and PIPS and DIPS
cannot completely flex hand
low median nerve injury
the fingers are still able to flex, but thumb opposition is often lost
wrist or below
median nerve injury
hand experiences muscular dystrophy, may develop some deformity
carpal tunnel syndrome
median nerve is compressed at the wrist, resulting in numbness or pain
what is the radial nerve involved in
extensor, dorsal, release grip, wrist grip, follows the radius to the dorsal (everything but the fingertips) thumb, index, middle, half of ring finger
client can’t grip, this is caused by an injury in the ….
median nerve
client can’t release grip, this is caused by an injury in the ….
radial nerve
radial nerve injury
results in loss of extension of the wrist, fingers, and thumb
clients can’t release grasped objects and thus this injury leads to significant disability
WRIST DROP (can’t keep wrist extended so the wrists drop)
radial tunnel syndrome
overuse of the arm to push or pull, overuse of the hand gripping, pinching, or bending the wrist can irritate the nerve
wrist drop
weakness of the wrist and finger extensors