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Period:
Anatomy & Physiology
Ch. 7 Part 1 Worksheet (55 points) KEY
Directions: Complete the following in dark blue or black ink.
1 (A H). (8 points) Label the following neuron in the spaces given. Use the key below.
Node of Ranvier
Axon
Dendrites
Axon Terminals
Nucleus
Myelin Sheath
Cell Body
Schwann’s Cells
A
D
C
B
E
F
H
G
A. Dendrites
E. Schwann Cell
B. Cell Body
F. Myelin Sheath
C. Node of Ranvier
G. Axon
D. Axon Terminal
H. Nucleus
2-7. (6 points) Use the key below to answer the following questions. Letters may be used more than
once and more than one letter may be used at one time.
a. astrocytes
b. oligodendrocytes
c. microglial cells
d. ependymal cells
_ABCD 2. These are neuroglial cells.
_C___ 3. These perform phagocytosis.
_D___ 4. These form the membrane-like structure that covers the brain.
_A___ 5. These form scar tissue.
_B___ 6. These form myelin.
_A___ 7. These support and regulate [ion] and blood vessels.
Anatomy & Physiology Ch. 7 Review
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8-13. (6 points) Match Column A with Column B. Use letters only once.
A
B
_D___ 8. Afferent
a. Autonomic Nervous System
_F___ 9. Spinal and cranial nerves
b. Somatic Nervous System
_C___ 10. Efferent
c. Motor Division
_E___ 11. Brain and spinal cord
d. Sensory Division
_A___ 12. Involuntary control
e. Central Nervous System
_B___ 13. Voluntary control
f. Peripheral Nervous System
14-18. (5 points) Using the above letters as a choice, answer the following questions. Letters may be
used more than and more than one answer may be used at once.
_D___ 14. This carries information from the brain to the body.
_C___ 15. This involves the skeletal muscles.
_ABC_ 16. This involves cardiac and smooth muscles.
_AC__ 17. This includes the sympathetic and parasympathetic divisions.
_AB___ 18. This includes the motor division.
19-23. (5 points) Use the key below to answer the following questions. Letters may be used more
than once and more than one letter may be used at one time.
a. integration
b. sensory input
c. motor output
_B___ 19. This is the first step in information processing of the central nervous system.
_ABC_ 20. This is a step of information processing within the CNS.
_C___ 21. This causes muscles or glands to respond to a received stimulus.
_B___ 22. This involves the PNS receiving stimuli.
_B___ 23. This generally involves unipolar and bipolar neurons.
24-28. (5 points) Match Column A with Column B. Use letters only once.
A
B
_C___ 24. Neurons
a. Small clusters of cell bodies in the CNS
_A___ 25. Ganglia
b. Fibers running through the nervous system
_E___ 26. Gray Matter
c. Main cell type in the CNS
_D___ 27. White Matter
d. Myelinated fibers
_B___ 28. Nerves
e. Unmyelinated fibers
Anatomy & Physiology Ch. 7 Review
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29-33. (5 points) Match Column A with Column B. Use letters only once.
A
B
_E___ 29. Dendrites
a. Lipoprotein covering of large axons
_C___ 30. Axons
b. Gaps within the myelin sheath
_D___ 31. Schwann Cells
c. Send messages
_A___ 32. Myelin Sheath
d. Neuroglial cells found within the myelin sheath
_B___ 33. Nodes of Ranvier
e. Receive messages
34 (AC). (3 points) Label the following neuron in the spaces given. Use the key below.
Bipolar Neuron
Unipolar Neuron
Multipolar Neuron
A
B
C
A. Bipolar Neuron
B. Unipolar Neuron
C. Multipolar Neuron
35-41. (7 points) Answer the following as true (T) or false (F).
_F___ 35. Excitatory neurotransmitters cause the membrane of neurons to be less permeable to receive
a single.
_F___ 36. The neurotransmitters epinephrine and norepinephrine enable skeletal muscles to contract
and relax.
_T___ 37. A reflex arc is the simplest nerve pathway in the human body.
_F___ 38. Most reflexes go through the brain, giving it enough time to distinguish where the stimulus is
coming from and react accordingly.
_T___ 39. Interneurons trigger a pain response after the withdrawal response has been triggered.
Anatomy & Physiology Ch. 7 Review
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_T___ 40. The knee-jerk response involves only two neurons, one sensory and one motor neuron.
_F___ 41. Multiple Sclerosis is a genetic disorder causing the loss of myelin.
42 (A E). (5 points) Label the following neuron in the spaces given. Use the key below.
Neurotransmitters
Axons
Dendrites
Synaptic Vesicle
Synapse
Receptor
D
A
E
(dots)
B
C
A. Axon
D. Synaptic Vesicle
B. Synapse
E. Neurotransmitters
C. Dendrite
Anatomy & Physiology Ch. 7 Review
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