Nervous System Flashcards
What is the basic functional unit of the nervous system?
Neuron
True or False: The central nervous system consists of the brain and spinal cord.
True
Fill in the blank: The __________ nervous system controls voluntary movements.
Somatic
What are the two main divisions of the nervous system?
Central Nervous System and Peripheral Nervous System
What type of neuron carries signals away from the central nervous system?
Motor neuron
Which part of the neuron receives signals from other neurons?
Dendrites
True or False: The autonomic nervous system is responsible for involuntary bodily functions.
True
What are the two branches of the autonomic nervous system?
Sympathetic and Parasympathetic
Multiple Choice: Which of the following is NOT a type of glial cell? A) Astrocyte B) Oligodendrocyte C) Erythrocyte D) Microglia
C) Erythrocyte
What is the function of the myelin sheath?
To insulate axons and speed up signal transmission
Fill in the blank: The __________ is the part of the brain responsible for coordination and balance.
Cerebellum
What is the role of neurotransmitters in the nervous system?
To transmit signals across synapses between neurons
True or False: The brainstem controls higher cognitive functions.
False
What is the significance of the blood-brain barrier?
It protects the brain from harmful substances in the bloodstream.
Multiple Choice: Which structure connects the left and right hemispheres of the brain? A) Cerebellum B) Corpus Callosum C) Thalamus D) Hippocampus
B) Corpus Callosum
What type of signal is transmitted along a neuron?
Electrical signal
Fill in the blank: The __________ lobe is primarily responsible for processing visual information.
Occipital
What is a reflex arc?
A neural pathway that controls a reflex action.
True or False: Sensory neurons transmit information from the environment to the central nervous system.
True
What is the primary function of the thalamus?
To relay sensory information to the appropriate areas of the brain.
Multiple Choice: Which part of the neuron is responsible for transmitting signals away from the cell body? A) Dendrite B) Axon C) Synapse D) Soma
B) Axon
Fill in the blank: The __________ nervous system is responsible for the ‘fight or flight’ response.
Sympathetic
What is the function of the limbic system?
To regulate emotions and memory.