BIO 152 A& P FINAL EXAM - PORTAGE LEARNING

BIO 152 A& P FINAL EXAM - PORTAGE LEARNING

Question 1
pts
The neuron pictured, below, is best described as:




Correct!

Bipolar

It has two extensions from the central cell body.

,Multipolar


Unipolar


Pseudounipolar


Question 2
pts
Name and describe what is occurring in the neuron cell membrane in section 4 of the
diagram. Include the charge of the membrane during this phase.




Your Answer:

, • Afterpolarization (Hyperpolarization) Potassium gates are slow to
close and there is an undershoot of the potential.
• The charge drops below -70mV and then returns to -70mV once at
resting state again.


Question 3
pts
Where is the integration center of a reflex located?

CNS (central nervous system)

Question 4
pts
What is true about the flexor withdrawal reflex?

A. It does not involve interneurons.


B. It involves excitatory interneurons.


C. It involves inhibitory interneurons.


D. The effect of the reflex is to create a co-contraction of two muscles


E. A&D

Correct!

F. B&C


Question 5
pts
Label the nerves (A-C) in the figure below:
A: _________________
B: _________________
C: _________________