Nervous System and Special Senses Quiz
Preview:
The ability to respond to a stimulus is termed:
A. conductivity
B. depolarized
C. all-or-nothing response
D. polarized
An action potential:
A. is essential for nerve impulse propagation
B. involves the influx of negative ions to depolarize the membrane
C. involves the outflux of negative ions to depolarize the membrane
D. involves the outflux of positive ions to depolarize the membrane
The midbrain, pons and medulla oblongata are housed in the:
A. brain stem
B. diencephalon
C. hypothalamus
D. cerebellum
The area of the brain stem that plays a role in consciousness and the awake/sleep cycle is the:
A. pineal gland
B. reticular activating system
C. thalmus
D. cerebellum
Which one of the following is the correct sequence of events that follows a threshold potential:
1. the membrane becomes depolarized
2. sodium channels open and sodium ions diffuse inward
3. the membrane becomes repolarized
4. potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell
.
A. 3,2,4,1
B. 2,1,4,3
C. 2,1,3,4
D. 1,2,4,3
The olfactory area is found within the:
A. temporal lobe
B. frontal lobe
C. occipital lobe
D. parietal lobe
A neuron with a cell body located in the CNS whose primary function is connecting other neurons is called a(n):
A. interneuron
B. afferent neuron
C. efferent neuron
D. glial cell
Lobe that contains the primary motor area that enables voluntary control of skeletal muscle movements:
A. parietal lobe
B. temporal lobe
C. occipital lobe
D. frontal lobe
This portion of the ear is responsible for directing sound waves into the eardrum.
A. outer ear
B. middle ear
C. inner ear
D. eustachian tube
The structure responsible for a person’s eye color is the:
A. retina
B. sclera
C. iris
D. cornea
The term central nervous system refers to the:
A. autonomic and peripheral nervous systems
B. brain spinal cord and cranial nerves
C. spinal cord and spinal nerves
D. brain and spinal cord
Which of the following is NOT considered a special sense:
A. smell
B. touch
C. singing
D. vision
Which of the following is NOT considered a structure of the ear:
A. conjuctiva
B. tympanic membrane
C. auditory canal
D. organ of corti
Contains the nerves that when stimulated by light generate nerve impulses which are then sent to the brain for interpretation
A. retina
B. pupil
C. sclera
D. cornea
Allows light waves to enter the eye
A. sclera
B. iris
C. pupil
D. cornea