1. The two kinds of cells in the nervous system are __________, which receive and transmit information to other cells, and __________, which do not transmit information.
A) neurons, glia
B) glia, hypoglia
C) glia, neurons
D) neurons, corpuscles
2. The outer surface of a cell is called the __________ and the fluid inside the cell is the __________.
A) cytoplasm, endoplasm
B) membrane, nuclear fluid
C) wall, goo
D) membrane, cytoplasm
3. Which structure within an animal cell contains the chromosomes?
A) endoplasmic reticulum
B) mitochondrion
C) membrane
D) nucleus
4. The main feature that distinguishes a neuron from other cells is the neuron's
A) larger nucleus.
B) ability to metabolize a variety of fuels.
C) high internal concentration of sodium ions.
D) varied shape.
5. Which part of a neuron contains the nucleus?
A) cell body
B) dendrites
C) axon
D) presynaptic ending
6. Neurons have one __________, but can have any number of __________.
A) dendrite, axons
B) axon, dendrites
C) cell body, axons
D) axon hillock, cell bodies
7. An axon hillock is
A) the end of an axon, close to the next cell.
B) a swelling in the middle of an axon.
C) a point at which the axon branches in two or more directions.
D) a swelling at the start of an axon, next to the cell body.
8. As a general rule, axons convey information
A) toward dendrites of their own cell.
B) toward their own cell body.
C) away from the cell body.
D) to glia.
9. One way to tell the difference between a dendrite and an axon is that dendrites usually
A) form branches perpendicular to the main trunk of the dendrite.
B) are longer than the axon.
C) are covered with myelin.
D) taper in diameter toward their periphery.
10. An interneuron is
A) a glia cell that separates one neuron from another.
B) a neuron that receives all its information from other neurons and conveys impulses only to other neurons.
C) a neuron that has its cell body in the spinal cord and an axon that extends to a muscle or gland.
D) a cell whose properties are halfway between those of a neuron and those of a glia cell.
11. A neuron that conveys information toward the hippocampus is considered a (an) __________ cell, with regard to the hippocampus.
A) afferent
B) efferent
C) intrinsic
D)
.....read more
Add new contribution