Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Sent to:
Search glass icon
  • Login
  • Textbooks
  • Ask our Educators
  • Study Tools
    Study Groups Bootcamps Quizzes AI Tutor iOS Student App Android Student App StudyParty
  • For Educators
    Become an educator Educator app for iPad Our educators
  • For Schools

  • Home
  • Textbooks
  • Biology
  • Neurons and Nervous Systems

Biology

Sylvia S. Mader, Michael Windelspecht

Chapter 37

Neurons and Nervous Systems - all with Video Answers

Educators


Chapter Questions

00:50

Problem 1

Which type of animal has a nerve net?
a. cnidarians
b. planarians
c. sponges
d. All of these are correct

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:21

Problem 2

The most intelligent invertebrates are probably the
a. annelids.
b. arthropods.
c. cephalopods.
d. None of these can be regarded as intelligent.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:20

Problem 3

The part of the brain that is seen only in mammals is the
a. cerebellum.
b. cerebrum.
c. neocortex.
d. olfactory bulb.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:33

Problem 4

Which of these correctly describes the distribution of ions on either side of an axon when it is not conducting a nerve impulse?
a. more sodium ions ($\mathrm{Na}^{+}$) outside and fewer potassium ions ($\mathrm{K}^{+}$) inside
b. $\mathrm{K}^{+}$ outside and $\mathrm{Na}^{+}$ inside
c. charged proteins outside; $\mathrm{Na}^{+}$ and $\mathrm{K}^{+}$ inside
d. charged proteins inside
e. Both a and d are correct

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:14

Problem 5

When the action potential begins, sodium gates open, allowing $\mathrm{Na}^{+}$ to cross the membrane. Now the polarity changes to
a. negative outside and positive inside.
b. positive outside and negative inside.
c. There is no difference in charge between outside and inside.
d. None of these are correct.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:39

Problem 6

Transmission of the nerve impulse across a synapse is accomplished by
a. the release of $\mathrm{Na}^{+}$ at the presynaptic membrane.
b. the release of neurotransmitters at the postsynaptic membrane.
c. the reception of neurotransmitters at the postsynaptic membrane.
d. Both a and c are correct.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:37

Problem 7

Repolarization of an axon during an action potential is produced by
a. inward diffusion of $\mathrm{Na}^{+}$.
b. active extrusion of $\mathrm{K}^{+}$.
c. outward diffusion of $\mathrm{K}^{+}$.
d. inward active transport of $\mathrm{Na}^{+}$.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:00

Problem 8

A drug that inactivates acetylcholinesterase
a. stops the release of $\mathrm{ACh}$ from presynaptic endings.
b. prevents the attachment of $\mathrm{ACh}$ to its receptor.
c. increases the ability of $\mathrm{ACh}$ to stimulate postsynaptic cells.
d. All of these are correct.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:54

Problem 9

Which of these is not a specific function of the $\mathrm{CNS}$?
a. generate motor output
b. perform integration
c. regulate blood sugar
d. receive sensory input

Rikhil Makwana
Rikhil Makwana
Numerade Educator
03:21

Problem 10

Which of the following is not part of the spinal cord?
a. grey matter
b. dorsal horn
c. association areas
d. tracts
e. ventral horn

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:00

Problem 11

The largest, outermost portion of the brain in humans is the
a. cerebellum. $\quad$ c. reticular activating system.
b. cerebrum. $\quad$ d. thalamus.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:36

Problem 12

The limbic system
a. includes the hippocampus and amygdala.
b. is responsible for our deepest emotions, including pleasure, rage, and fear.
c. is not responsible for reason and self-control.
d. All of these are correct.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
03:02

Problem 13

Which of these pairs is mismatched?
a. cerebrum—thinking and memory
b. thalamus—motor and sensory centers
c. hypothalamus—internal environment regulation
d. cerebellum—motor coordination
e. medulla oblongata—fourth ventricle

Rikhil Makwana
Rikhil Makwana
Numerade Educator
01:04

Problem 14

A spinal nerve takes nerve impulses
a. to the $\mathrm{CNS}$.
b. away from the $\mathrm{CNS}$.
c. both to and away from the $\mathrm{CNS}$.
d. only inside the $\mathrm{CNS}$.
e. only from the cerebrum.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:02

Problem 15

The autonomic system has two divisions, called the
a. $\mathrm{CNS}$ and $\mathrm{PNS}$.
b. somatic and skeletal systems.
c. efferent and afferent systems.
d. sympathetic and parasympathetic divisions.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:08

Problem 16

Which of these statements about autonomic neurons is correct?
a. They are motor neurons.
b. Preganglionic neurons have cell bodies in the $\mathrm{CNS}$.
c. Postganglionic neurons innervate smooth muscles, cardiac muscle, and glands.
d. All of these are correct.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:33

Problem 17

Sympathetic nerve stimulation does not cause
a. the liver to release glycogen.
b. the dilation of bronchioles.
c. the gastrointestinal tract to digest food.
d. an increase in the heart rate.

Rikhil Makwana
Rikhil Makwana
Numerade Educator
02:46

Problem 18

Label this diagram of a reflex arc.

Rikhil Makwana
Rikhil Makwana
Numerade Educator

Get 24/7 study help with our app

 

Available on iOS and Android

About
  • Our Story
  • Careers
  • Our Educators
  • Numerade Blog
Browse
  • Bootcamps
  • Books
  • Notes & Exams NEW
  • Topics
  • Test Prep
  • Ask Directory
  • Online Tutors
  • Tutors Near Me
Support
  • Help
  • Privacy Policy
  • Terms of Service
Get started