BIOD 152 MODULE 1
1. How long can neurons survive without oxygen?
Answer: 3-5 minutes
2. Where are all nerve cell products synthesized?
Answer: The neuron cell body
3. The neuron cell body consists of:
Answer: a large nucleus with surrounding cytoplasmcontaining the normal organelles
4. Which direction is information is received and sent from within a neuron?-
Answer: The same direction
5. Dendrites
Answer: numerous short extensions that emanate from the cell body
6. Role of dendrites
Answer: Receive information from other neurons and conduct thosenerve impulses toward the
cell body
7. Role of axon
Answer: Conducts nerve impulses away from the cell body to its axonterminals
8. Axon length
Answer: Up to three feet
9. What are axons composed of?
Answer: cell components like the cell body; lack roughendoplasmic reticulum
10. The axon depends upon the to send the necessary down the
lengthof the .
Answer: neuron's cell body; proteins; axon
11. The cell body contains:
Answer: the nucleus and other organelles typically found incells, except for centrioles.
12. T/F: Centrioles are capable of mitosis
Answer: False
13. Main function of the cell body
Answer: To manufacture neurotransmitters
, 14. Neurotransmitters
Answer: chemicals stored inside secretory vesicles (axon terminalvesicles) at the end of the
axon terminals.
15. What happens when neurotransmitters are released by the axon terminalvesicles?
Answer: they carry the transmission of the nerve impulse from one neuron to another
16. Neurotransmitters are emitted across a to the of another
neuron-
Answer: synapse; dendrite
17. Synapse
Answer: a gap between two neurons
18. presynaptic neuron
Answer: before the synapse
19. postsynaptic neuron
Answer: a neuron that is found after the synapse
20. Neurotransmitters are sent from a neuron through the synapse to the
neuron
Answer: presynaptic; postsynaptic
21. How are neurons classified?
Answer: According to the number of extensions from theircell body
22. Multipolar neurons (motor neurons)
Answer: Have three or more extensions from thecell body; one axon and many dendrites
23. The nervous system
Answer: receives information, processes information, and sendsout signals to the muscles and
glands to elicit an appropriate response
24. What is nervous tissue responsible for and how does it do it?
Answer: Communication between the cells of the body by forming a system of electrical
impulses
25. What are the two main divisions of the human nervous system?
Answer: The CentralNervous System (CNS) and Peripheral Nervous System (PNS)
26. The central nervous system includes:
Answer: the brain and spinal cord
1. How long can neurons survive without oxygen?
Answer: 3-5 minutes
2. Where are all nerve cell products synthesized?
Answer: The neuron cell body
3. The neuron cell body consists of:
Answer: a large nucleus with surrounding cytoplasmcontaining the normal organelles
4. Which direction is information is received and sent from within a neuron?-
Answer: The same direction
5. Dendrites
Answer: numerous short extensions that emanate from the cell body
6. Role of dendrites
Answer: Receive information from other neurons and conduct thosenerve impulses toward the
cell body
7. Role of axon
Answer: Conducts nerve impulses away from the cell body to its axonterminals
8. Axon length
Answer: Up to three feet
9. What are axons composed of?
Answer: cell components like the cell body; lack roughendoplasmic reticulum
10. The axon depends upon the to send the necessary down the
lengthof the .
Answer: neuron's cell body; proteins; axon
11. The cell body contains:
Answer: the nucleus and other organelles typically found incells, except for centrioles.
12. T/F: Centrioles are capable of mitosis
Answer: False
13. Main function of the cell body
Answer: To manufacture neurotransmitters
, 14. Neurotransmitters
Answer: chemicals stored inside secretory vesicles (axon terminalvesicles) at the end of the
axon terminals.
15. What happens when neurotransmitters are released by the axon terminalvesicles?
Answer: they carry the transmission of the nerve impulse from one neuron to another
16. Neurotransmitters are emitted across a to the of another
neuron-
Answer: synapse; dendrite
17. Synapse
Answer: a gap between two neurons
18. presynaptic neuron
Answer: before the synapse
19. postsynaptic neuron
Answer: a neuron that is found after the synapse
20. Neurotransmitters are sent from a neuron through the synapse to the
neuron
Answer: presynaptic; postsynaptic
21. How are neurons classified?
Answer: According to the number of extensions from theircell body
22. Multipolar neurons (motor neurons)
Answer: Have three or more extensions from thecell body; one axon and many dendrites
23. The nervous system
Answer: receives information, processes information, and sendsout signals to the muscles and
glands to elicit an appropriate response
24. What is nervous tissue responsible for and how does it do it?
Answer: Communication between the cells of the body by forming a system of electrical
impulses
25. What are the two main divisions of the human nervous system?
Answer: The CentralNervous System (CNS) and Peripheral Nervous System (PNS)
26. The central nervous system includes:
Answer: the brain and spinal cord
