Neevous System Flashcards
(26 cards)
What is the nervous system?
The nervous system is a complex network of nerves and cells that transmit signals between different parts of the body.
What are the two main divisions of the nervous system?
The two main divisions are the central nervous system (CNS) and the peripheral nervous system (PNS).
True or False: The central nervous system consists of the brain and spinal cord.
True
What does the peripheral nervous system include?
The peripheral nervous system includes all the nerves that branch out from the brain and spinal cord.
Fill in the blank: The __________ nervous system controls involuntary bodily functions.
autonomic
What is the role of sensory neurons?
Sensory neurons are responsible for transmitting sensory information from the body to the central nervous system.
What type of neuron carries signals from the CNS to muscles?
Motor neurons
Multiple choice: Which part of the nervous system is responsible for ‘fight or flight’ responses? A) Central Nervous System B) Somatic Nervous System C) Autonomic Nervous System
C) Autonomic Nervous System
What is the function of interneurons?
Interneurons connect sensory and motor neurons and process information within the central nervous system.
True or False: The somatic nervous system controls voluntary movements.
True
What are the main components of the central nervous system?
The main components are the brain and spinal cord.
Fill in the blank: __________ are the cells that transmit nerve impulses.
Neurons
What is myelin?
Myelin is a fatty substance that insulates nerve fibers and speeds up the transmission of signals.
Multiple choice: Which structure in the brain is primarily responsible for coordination and balance? A) Cerebrum B) Cerebellum C) Brainstem
B) Cerebellum
What is the function of the spinal cord?
The spinal cord transmits signals between the brain and the rest of the body and coordinates reflexes.
True or False: The sympathetic nervous system prepares the body for rest and digestion.
False
What role do glial cells play in the nervous system?
Glial cells support and protect neurons and maintain homeostasis in the nervous system.
Fill in the blank: The __________ nervous system regulates bodily functions such as heart rate and digestion.
autonomic
What is a reflex arc?
A reflex arc is the neural pathway that controls a reflex action, involving sensory neurons, interneurons, and motor neurons.
Multiple choice: Which part of the brain is responsible for higher cognitive functions? A) Brainstem B) Cerebrum C) Cerebellum
B) Cerebrum
What is the role of neurotransmitters?
Neurotransmitters are chemicals that transmit signals across synapses between neurons.
True or False: The parasympathetic nervous system is responsible for ‘rest and digest’ activities.
True
What are cranial nerves?
Cranial nerves are nerves that emerge directly from the brain and brainstem, primarily serving the head and neck.
Fill in the blank: The __________ system is responsible for voluntary muscle movements.
somatic
