neurobio exam 2

Question 1

which fibers have smallest diameter and convey temperature, pain, and itching sensations?

Answer 1

c fibers

Question 2

how do dermatomes interact with other dermatomes

Answer 2

overlap

Question 3

are sensory cortical maps constant or changing with experience

Answer 3

change with experience

Question 4

what releases histamine with injury

Answer 4

mast cells

Question 5

what do mice lacking with TRPV1 respond to

Answer 5

mechanosensory pain, but not heat

Question 6

pain-induced release of _________ in dorsal horn of spinal cord causes ___________ of layer pain signals

Answer 6

substance P; alteration

Question 7

itch sensations use _____ receptors

Answer 7

TRP

Question 8

what are receptors through which capsaicin exerts effects sensitive to?

Answer 8

temp increase and are TRPV1 receptors

Question 9

phantom limb pain is an example of ________ pain

Answer 9

neuropathic

Question 10

emotional pain associated with rejection activates?

Answer 10

anterior cingulate cortex

Question 11

what can decrease emotional pain associated with rejection?

Answer 11

tylenol

Question 12

the analgesic drug that work better in red headed women than blond women works on ______ opiate receptors

Answer 12

Kappa

Question 13

anti inflammatory drugs reduce pain by blocking synthesis of ________ and ___________

Answer 13

prostaglandins and leukotriene

Question 14

stimulation of ____________ can induce analgesia

Answer 14

periaqueductal gray

Question 15

what releases analgesic effect of placebo in pain control experiments

Answer 15

naloxone

Question 16

fast-adapting, small receptive fields good for frequency vibration and light touch

Answer 16

meissner’s corpuscle

Question 17

which fibers would not be lost if myelination were blocked

Answer 17

temperature and itch