PORTAGE LEARNING ANATOMY & PHYSIOLOGY 2: MODULE 1 EXAM QUESTIONS AND ANSWERS

PORTAGE LEARNING ANATOMY & PHYSIOLOGY 2: MODULE 1 EXAM
QUESTIONS AND ANSWERS
1. This is a collection of cell bodies found in the peripheral nervous system.-
: Ganglia
2. This is a bundle of axons found in the peripheral nervous system.: Nerve
3. This part of a neuron conducts nerve impulse away from the cell body.: Axon
4. This part of a neuron conducts nerve impulses towards the cell body.: Den-
drites
5. What part of the autonomic system accelerates the heart beat and increases
breathing rate?: Sympathetic nervous system
6. What part of the autonomic system increases digestion?: Parasympathetic
7. An interneuron inside the spinal cord is part of the:: Central nervous system
8. An afferent neuron carries information:

A) From the central to the peripheral nervous system
B) From the peripheral to the central nervous system
C) Within the central nervous system
D) Within the peripheral nervous system: B) From the peripheral to the central
nervous system
9. An efferent neuron carries information:

A) From the central to the peripheral nervous system
B) From the peripheral to the central nervous system
C) Within the central nervous system
D) Within the peripheral nervous system: A) From the central to the peripheral
nervous system
10. A neuron going to the bicep of the forearm is part of the:

A. Central nervous system
B. Peripheral nervous system
C. Autonomic system
D. Somatic system
E. A&C
F. B&D: F. B&D: Peripheral nervous system & somatic system
11. What is the location and function of Satellite cells?: Location: Peripheral
nervous system (PNS)
Function: Regulation of environment of neuron cell bodies
12. What is the location and function of Astrocytes?: location: CNS
function: regulation of chemical environment inside CNS, forming a physical barrier
(BBB) by wrapping around blood capillaries

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, PORTAGE LEARNING ANATOMY & PHYSIOLOGY 2: MODULE 1 EXAM
QUESTIONS AND ANSWERS
13. A) Bipolar: The neuron pictured, below, is best described as:

A) Bipolar
B) Multipolar
C) Unipolar
D) Pseudounipolar

14. B) Multipolar: The neuron pictured, below, is best described as:

A) Bipolar
B) Multipolar
C) Unipolar
D) Pseudounipolar

15. C) Unipolar: The neuron pictured, below, is best described as:

A) Bipolar
B) Multipolar
C) Unipolar
D) Pseudounipolar

16. True or false: Neurons do not physically touch one another.: True: Neurons
do not physically touch. They are separated by synapses.
17. True or False: Neurons come into direct physical contact with one anoth-
er.: False - They do not come into direct physical contact.
18. True or False: Action potentials travel in multiple directions within the
same neuron.: False- only one direction in the same neuron
19. How is a message sent from one neuron to another?: There is a minute
fluid-filled space, called a synapse, between the axon terminal of the sending neuron
and the dendrite of the receiving neuron. When a nerve impulse reaches the end
of an axon, neurotransmitters are released into the synapse. These bind with a
receptor on the next neuron, opening Na+ gates in the receiving dendrite which
causes depolarization and the impulse is carried.
20. Describe the function and release of neurotransmitters:: Neurotransmitters
are chemicals stored inside secretory vesicles (axon terminal vesicles) at the end
of the axon terminals. When neurotransmitters are released by the axon terminal
vesicles, they carry the transmission of the nerve impulse from one neuron to
another.


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