Nervous system Flashcards
What is the primary function of the nervous system?
To coordinate and control body activities by transmitting signals between different parts of the body.
True or False: The central nervous system consists of the brain and spinal cord.
True
Fill in the blank: The two main divisions of the nervous system are the ______ and the ______ nervous systems.
central, peripheral
What are neurons?
Specialized cells that transmit nerve impulses.
What is the role of glial cells?
To support and protect neurons.
Multiple Choice: Which part of the neuron receives signals from other neurons? A) Axon B) Dendrite C) Myelin D) Synapse
B) Dendrite
What is the function of the myelin sheath?
To insulate axons and increase the speed of nerve impulse transmission.
True or False: The peripheral nervous system includes cranial and spinal nerves.
True
What is a synapse?
The junction between two neurons where communication occurs.
Fill in the blank: The ______ nervous system controls voluntary movements.
somatic
What is the autonomic nervous system responsible for?
Regulating involuntary bodily functions such as heart rate and digestion.
Multiple Choice: Which neurotransmitter is primarily associated with the ‘fight or flight’ response? A) Serotonin B) Dopamine C) Norepinephrine D) GABA
C) Norepinephrine
What are reflex arcs?
Neural pathways that control reflex actions.
True or False: The brain is divided into four main lobes.
True
What are the names of the four main lobes of the brain?
Frontal, parietal, temporal, and occipital.
Fill in the blank: The ______ lobe is primarily responsible for decision making and problem-solving.
frontal
What is the function of the hippocampus?
Involved in memory formation and spatial navigation.
Multiple Choice: Which part of the brain regulates balance and coordination? A) Brainstem B) Cerebellum C) Thalamus D) Amygdala
B) Cerebellum
What is the role of the thalamus?
To relay sensory information to the appropriate parts of the brain.
True or False: The spinal cord is responsible for transmitting signals between the brain and the rest of the body.
True
Fill in the blank: The ______ system is involved in emotional responses.
limbic
What is the function of the brainstem?
To control basic life functions such as breathing and heart rate.
Multiple Choice: Which of the following is NOT a function of the nervous system? A) Sensory perception B) Motor control C) Hormone production D) Cognitive functions
C) Hormone production
What is neuroplasticity?
The ability of the nervous system to reorganize itself by forming new neural connections.
True or False: The sympathetic nervous system prepares the body for rest and digestion.
False
What is the primary function of the parasympathetic nervous system?
To promote the ‘rest and digest’ response.
