10 Jun BIO 211 – Which of the following are the structural
uestion
1 Which of the following are the structural components of a typical neuron?
a. Cell body, cilia, basement membrane
b. cell body, axon, dendrites
c. neurofilaments, neurofibrils, axolemma
d. Neurilemma, neurofibrils, dendrites
2 Which of the following is true about gated ion channels?
a. They allow water to pass through the plasma membrane for osmotic balance
b. They allow all ions to enter a cell bu no exit a cell
c. They are pumps in the plasma membrane for specific ions
d. They open or close in response to specific stimuli
3. What do the posterior root ganglia mainly consist of?
a. Axons of motor neurons
b. Axons of sensory neurons
c. Cell bodies of motor neurons
d. Cell bodies of sensory neurons
4. Which of the following is true about the stretch reflex?
a. it is an example of a polysynaptic reflex
b. it is important in regulating muscle length
c. it is activated when a smooth muscle lengthens.
d. It is voluntary
5. Which of the following is true about the flexor reflex?
a. It prevents a muscle from overstretching
b. It prevents a muscle from generating damaging tension
c. It moves a limb away from a painful stimulus
d. It is dependent on cranial neurons
6. Which of the following lies between the cerebrum and the brainstem?
a. Pons
b. Midbrain
c. Diencephalon
d. Medulla oblongata
7. What is true about cerebrospinal fluid?
a. It serves as a transport medium for nutrients
b. It provides ATP for impulse transmission
c. It is formed by a passive process
d. It is normally produced twice as fast as it is removed
8. Which of the following neurons have cell bodies within the spinal cord?
a. Upper motor
b. Lower motor
c. Pregnaglionic
d. Postganglionic
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