The nervous system Flashcards
What is the primary function of the nervous system?
To coordinate and control body activities through signaling.
True or False: The nervous system is divided into two main parts.
True
What are the two main parts of the nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS)
Fill in the blank: The ________ consists of the brain and spinal cord.
central nervous system
What is the role of neurons?
To transmit signals throughout the nervous system.
Multiple choice: Which of the following is NOT a type of neuron?
A) Sensory
B) Motor
C) Digestive
D) Interneuron
C) Digestive
What is a synapse?
The junction between two neurons where signal transmission occurs.
True or False: The PNS includes all the nerves outside the brain and spinal cord.
True
What are the two main divisions of the peripheral nervous system?
Somatic nervous system and autonomic nervous system
Fill in the blank: The ________ nervous system controls voluntary movements.
somatic
Multiple choice: The autonomic nervous system is responsible for:
A) Voluntary actions
B) Involuntary functions
C) Sensory processing
D) Motor control
B) Involuntary functions
What are the two branches of the autonomic nervous system?
Sympathetic and parasympathetic nervous systems
True or False: The sympathetic nervous system prepares the body for ‘rest and digest’ activities.
False
What is the main function of the parasympathetic nervous system?
To promote ‘rest and digest’ responses.
Fill in the blank: The ________ is the largest part of the brain.
cerebrum
What is the function of the cerebellum?
To coordinate voluntary movements and maintain balance.
Multiple choice: Which part of the brain is responsible for regulating vital functions such as heart rate and breathing?
A) Cerebrum
B) Cerebellum
C) Brainstem
D) Thalamus
C) Brainstem
What is the function of the spinal cord?
To transmit signals between the brain and the rest of the body.
True or False: Reflex actions bypass the brain and occur in the spinal cord.
True
What are neurotransmitters?
Chemical messengers that transmit signals across synapses.
Fill in the blank: The ________ is a protective layer surrounding the brain and spinal cord.
meninges
Multiple choice: Which of the following is a function of the nervous system?
A) Memory
B) Sensation
C) Movement
D) All of the above
D) All of the above
What is neuroplasticity?
The ability of the nervous system to adapt and reorganize itself.
True or False: Myelin sheath speeds up the transmission of electrical signals in neurons.
True
