Bio 250 Practice Exam 2
1. In the peripheral nervous system, Schwann cells participate in the
repair of damaged nerves by
A. producing new axons
B. regenerating cell bodies for the neurons
C. forming a cellular tube that can direct the growth of new axons
D. clearing away cellular debris
E. all of the above
2. Which of the following pairs is not properly matched?
A. cervical spinal nerves: 8
B. thoracic spinal nerves: 12
C. lumbar spinal nerves: 4
D. sacral spinal nerves: 5
E. coccygeal spinal nerves: 1
3. Each of the following is a type of glial cell found in the central
nervous system except one. Identify the exception.
A. Astrocytes B. Schwann cells C. Oligodendrocytes
D. Microglia E. Ependymal cells
4. The limbic system
A. contains both cerebral and diencephalic components
B. functions in emotions, learning and memory
C. consists of nuclei that lie between the border between the cerebrum
and the diencephalon
D. provides a link between the conscious, intellectual functions of the
cerebral cortex and the unconscious functions of the brain stem
E. all of the above
5. The site of intercellular communication between neurons is the
A. telodendria B. synaptic knob C. collateral
D. hillock E. synapse
6. The most complex endocrine responses involve the
A. thyroid gland
B. pancreas
C. adrenal glands
D. hypothalamus
E. thymus
7. The len focuses light on the photoreceptor cells by
A. moving up and down
B. moving in and out
C. changing shape
D. opening and closing
E. dilating and constricting
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