Download Biology Test Nervous

1. Which of the following carry impulses from the spinal cord to effectors?
a. motor neurons
b. sensory neurons
c. association neurons
d. receptors
2. The spaces between neurons that impulses cross by means of chemical reactions are called
a. axons
b. dura mater
c. synapses
d. pia mater
3. What is the function of neurotransmitters?
a. to transmit nerve impulses through dendrites
b. to stimulate the production of epinephrine
c. to transmit nerve impulses across synapses
d. none are true
4. The autonomic nervous system controls
a. coordination
b. involuntary actions
c. muscle movement
d. reflex action
5. Sensory neurons (receptors) receive messages from
a. internal and external environment
b. central nervous system
c. the cerebellum
d. the effectors
6. The nervous system in the human body includes both the central and the peripheral nervous
systems. Which of the following components of the human nervous system are found in the
peripheral nervous system?
a. sensory receptors
b. spinal cord
c. brain stem
d. cerebellum
7. A person’s heart beating faster after being frightened is a result of action by the
a. somatic nervous system
b. limbic system
c. central nervous system
d. sympathetic nervous system
8. Nerve impulses that pass through a dendrite are transferred directly to the
a. synapses
b. axon
c. myelin sheath
d. cell body
9. Which of these neural structures accepts a neurotransmitter signal from a neighboring cell?
a. an axon
b. a schwann cell
c. a dendrite
d. a myelin sheath
10. What is the function of the central nervous system?
a. a relay messages
b. to process information
c. to analyze information
d. all are true
11. In the nervous system, signals are conducted across synapse by
a. electrons
b. chemicals
c. dendrites
d. specialized cells
12. Impulses are carried away from nerve cells by
a. dendrite
b. cell bodies
c. axons
d. ganglia
13. Which of the following is the function of the cerebrum?
a. controls conscious activities of the body
b. controls heart rate
c. controls blood pressure
d. controls breathing
14.What is the smallest structural and functional unit of the nervous system?
a. nerve
b. neuron
c. organ
d. tissue
15. The region of the brain responsible for smell is
a. cerebrum
b. cerebellum
c. the olfactory lobe
d. the optic lobe
16. When a neuron is in the resting state, the area inside the nerve cell membrane contains
a. more Na+ ions than the outside
b. more K+ ions than the outside
c. fewer K+ ions than the outside
d. equal amounts of K+ ions & Na+ ions
17. The structures that receive messages from the CNS and carry them to an area of the body are
called
a. receptors
b. effectors
c. pia mater
d. dura mater
18. Which section of the brain controls breathing rate and blood flow through vessels?
a. hypothalamus
b. midbrain
c. medulla oblongata
d. cerebellum
19. In many neurons the axon is surrounded by cells called
a. synapses
b. dendrite
c. schwann cells
d. muscle cells
20. When an action potential reaches the end of a neuron, it triggers the release of
a. neurotransmitter
b. sodium ions
c. dendrites
d. receptors
21. Which of the following conduct impulses through the nervous system?
a. macrophages
b. muscle fibers
c. lymphocytes
d. neurons
22. Neurons are categorized by the
a. direction in which they carry.
b. amount of metabolic activity that takes place.
c. number of dendrites that branch out.
d. number of impulses that they carry.
23. What are the two divisions of the peripheral nervous system?
a. brain and spinal cord
b. thalamus and hypothalamus
c. somatic and autonomic
d. sensory and motor
24. The part of the peripheral nervous system that controls your normal routine is called
a. the autonomic nervous system
b. the somatic nervous system
c. the sympathetic nervous system
d. the parasympathetic nervous system
25. The region of the brain responsible for your coordination is
a. the cerebrum
b. the cerebellum
c. the olfactory lobe
d. the medulla oblongata
26. The somatic nervous system is a subsystem of the
a. central nervous system
b. autonomic nervous system
c. sympathetic nervous system
d. peripheral nervous system
27. What comes into the neuron when there is a nerve impulse?
a. Na+
b. K+
c. Ca++
d. H+
28. What do interneurons do?
a. carry impulses from the body to the spinal cord and brain
b. receive impulses and carries them toward the cell body
c. carry response impulses away from the brain and spinal cord to a muscle or gland
d. process incoming impulse and pass response impulses on to motor neurons.
29. Motor neurons (effectors) receive messages from the central nervous system and transmit them
to
a. receptors
b. sensory neurons
c. muscles and glands
d. ganglions
30. When you accidentally touch a hot stove, you jerk your hand away from the hot surface. This
movement is called ________.
a. an instinctive behavior
b. an imprinted behavior
c. a reflex
d. a learned behavior