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 muscle movements.
Somatic
What type of neuron carries signals from sensory receptors to the central nervous system?
Sensory neuron
Which part of the neuron receives signals from other neurons?
Dendrites
What is the role of the myelin sheath?
To insulate the axon and speed up signal transmission
Multiple choice: Which structure is responsible for processing and relaying information in the brain?
A) Axon
B) Synapse
C) Thalamus
D) Dendrite
C) Thalamus
What is the gap between two neurons called?
Synapse
True or False: The autonomic nervous system is under voluntary control.
False
What are neurotransmitters?
Chemical messengers that transmit signals across a synapse
Fill in the blank: The _______ lobe of the brain is primarily responsible for processing visual information.
Occipital
What is the function of the cerebellum?
To coordinate voluntary movements and maintain balance
Multiple choice: Which of the following is NOT a part of the brainstem?
A) Medulla Oblongata
B) Pons
C) Hippocampus
D) Midbrain
C) Hippocampus
What is the primary function of the spinal cord?
To transmit signals between the brain and the rest of the body
True or False: The sympathetic nervous system prepares the body for ‘rest and digest’ activities.
False
What does the term ‘plasticity’ refer to in the nervous system?
The ability of the brain to change and adapt in response to experience
Fill in the blank: The _______ nervous system is responsible for involuntary body functions.
Autonomic
What is an action potential?
A rapid change in electrical charge that travels along the axon of a neuron
Multiple choice: Which part of the neuron transmits signals away from the cell body?
A) Dendrite
B) Soma
C) Axon
D) Synapse
C) Axon
What role do glial cells play in the nervous system?
They support, protect, and nourish neurons.