A. White matter
B. Gray matter
C. Cell bodies
D. Nerve fibers
Related Mcqs:
- A mixed nerve possess fibers of:
A. Sensory neurons
B. Motor neurons
C. Both sensory and motor neurons
D. None of these - A few cranial nerves including the vaga nerve together with the fibers from the bottom portion of spinal cord from the:
A. Sympathetic nervous system
B. Parasympathetic nervous system
C. Somatic nervous system
D. Peripheral nervous system - The action potential ‘jumps’ along an axon. The gaps in a myelinated axon that the action potential ‘jumps’ to are called the ____________?
A. Broca’s area
B. Nodes of Ranvier
C. terminal buttons
D. Wernicke’s area - In myelinated neurons the impulse jumps from node to rode (rod of Ranvier). This is called:
A. Nerve impulse
B. Saltatory impulse
C. Presynaptic impulse
D. Postsynaptic impulse - Some of the fibers from each eye cross over to the opposite brain hemisphere at the ______________?
A. optic chiasma
B. optic nerve
C. blind spot
D. fovea - The muscle fibers of the iris can increase or decrease the amount of light entering the eye by expanding or contracting the ______________?
A. lens
B. cornea
C. pupil
D. fovea - The branching fibers of the________________end in________________and link with parts of other neurons.
A. soma; somatic membrane
B. nucleus; nucleic dampers
C. dendrite; dendritic arcs
D. axon; axon terminals - The passage of nerve impulse is associated with increase in permeability of which of the following ion:
A. Sodium
B. Potassium
C. Organic ions
D. Inorganic ions - The part of the nerve cell specialized for conducting information is the:
A. axon
B. cell body
C. soma
D. neurilemma - The nature of a nerve impulse is primarily a/an _____________ event; communication between neurons is primarily a/an_____________
A. chemical; electrical
B. acetylcholine, catecholamine
C. dendrite; axon
D. electrical; chemical
