Unit 4 - CNS Flashcard

Flashcard
•
Biology
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the function of the axon terminal in a neuron?
Back
The axon terminal is responsible for transmitting signals to other neurons or target cells by releasing neurotransmitters at the synapse.
2.
FLASHCARD QUESTION
Front
What type of neuron is characterized by having two processes (one axon and one dendrite)?
Back
Bipolar neurons are characterized by having two processes, one axon and one dendrite, and are often found in sensory pathways.
3.
FLASHCARD QUESTION
Front
What is the role of the myelin sheath in the nervous system?
Back
The myelin sheath insulates nerve fibers, allowing for faster transmission of electrical impulses along the axon.
4.
FLASHCARD QUESTION
Front
What are the main components of the central nervous system (CNS)?
Back
The central nervous system (CNS) consists of the brain and spinal cord.
5.
FLASHCARD QUESTION
Front
What is a synapse?
Back
A synapse is the junction between two neurons where communication occurs, typically involving the release of neurotransmitters.
6.
FLASHCARD QUESTION
Front
What is the difference between afferent and efferent neurons?
Back
Afferent neurons carry sensory information to the CNS, while efferent neurons transmit motor commands from the CNS to muscles and glands.
7.
FLASHCARD QUESTION
Front
What is the function of glial cells in the nervous system?
Back
Glial cells support and protect neurons, provide structural support, and assist in the maintenance of homeostasis in the nervous system.
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