BIO 203 EXAM 2 PURDUE QUESTIONS
AND ANSWERS 100% SOLVED
, you are barefoot on the beach, and your left foot comes into contact with a sharp,
painful object. Immediately, you withdraw your foot. What reflex helps to prevent you
from falling down? - ANSWERcrossed extensor
structure that is part of the brain's endogenous analgesic system -
ANSWERperiaqueductal gray
you are carrying out an experiment where you deliver stimuli of increasing voltage to a
whole muscle. you observe a twitch when the stimulus is 0.23 volts. what would happen
if you stimulate with 0.45 volts? - ANSWERforce of contraction would increase
which of the following statements is wrong?
a. axonal sprouting only occurs if the cell body of the neuron is undamaged
b. neurotrophic factors are proteins
c. Schwann cells inhibit axonal regeneration
d. "grid" and "place" neurons constitute the brain's GPS system - ANSWERc. Schwann
cells inhibit axonal regeneration
these neurons generate an internal representation of an action - whether you are
actually carrying it out, anticipating carrying it out, or watching somebody else carry it
out. - ANSWERmirror; canonical
you would lose proprioception if you cut the - ANSWERdorsal columns
in the "knee-jerk" reflex, there is ----- of the neurons controlling ipsilateral flexor muscles
- ANSWERreciprocal inhibition
suppose the biceps brachii is attached to the radius at a distance of 7cm from the elbow
joint and suppose the hand moves 15cm in response to a 3cm shortening of the biceps
brachii. What is the distance from the fulcrum of the elbow joint to the hand? -
ANSWER35
15/3=5
5x7=35
glial cells that have properties similar to macrophages - ANSWERmicroglia
a 34-year old man presents with paralysis affecting one side of his tongue. which of the
following cranial nerves is likely to be damaged? - ANSWERXII
what does glutamic acid do? - ANSWERopens sodium channels
curare paralyzes by - ANSWERbinding to acetylcholine receptors
AND ANSWERS 100% SOLVED
, you are barefoot on the beach, and your left foot comes into contact with a sharp,
painful object. Immediately, you withdraw your foot. What reflex helps to prevent you
from falling down? - ANSWERcrossed extensor
structure that is part of the brain's endogenous analgesic system -
ANSWERperiaqueductal gray
you are carrying out an experiment where you deliver stimuli of increasing voltage to a
whole muscle. you observe a twitch when the stimulus is 0.23 volts. what would happen
if you stimulate with 0.45 volts? - ANSWERforce of contraction would increase
which of the following statements is wrong?
a. axonal sprouting only occurs if the cell body of the neuron is undamaged
b. neurotrophic factors are proteins
c. Schwann cells inhibit axonal regeneration
d. "grid" and "place" neurons constitute the brain's GPS system - ANSWERc. Schwann
cells inhibit axonal regeneration
these neurons generate an internal representation of an action - whether you are
actually carrying it out, anticipating carrying it out, or watching somebody else carry it
out. - ANSWERmirror; canonical
you would lose proprioception if you cut the - ANSWERdorsal columns
in the "knee-jerk" reflex, there is ----- of the neurons controlling ipsilateral flexor muscles
- ANSWERreciprocal inhibition
suppose the biceps brachii is attached to the radius at a distance of 7cm from the elbow
joint and suppose the hand moves 15cm in response to a 3cm shortening of the biceps
brachii. What is the distance from the fulcrum of the elbow joint to the hand? -
ANSWER35
15/3=5
5x7=35
glial cells that have properties similar to macrophages - ANSWERmicroglia
a 34-year old man presents with paralysis affecting one side of his tongue. which of the
following cranial nerves is likely to be damaged? - ANSWERXII
what does glutamic acid do? - ANSWERopens sodium channels
curare paralyzes by - ANSWERbinding to acetylcholine receptors
