Nervous System Functioning

Question 1

What is the primary function of the nervous system?

Answer 1

To coordinate and control body activities by transmitting signals between different parts of the body.

Question 2

True or False: The nervous system is responsible for processing sensory information.

Answer 2

True

Question 3

What are the two main divisions of the nervous system?

Answer 3

Central Nervous System (CNS) and Peripheral Nervous System (PNS).

Question 4

Fill in the blank: The _____ nervous system controls voluntary movements.

Answer 4

Somatic

Question 5

What is a stimulus?

Answer 5

Any event or situation that evokes a response from the nervous system.

Question 6

What is the role of sensory neurons?

Answer 6

To carry signals from sensory receptors to the central nervous system.

Question 7

Multiple Choice: Which part of the nervous system is responsible for involuntary actions?

Answer 7

Autonomic Nervous System

Question 8

What is a reflex action?

Answer 8

An automatic response to a stimulus that does not require conscious thought.

Question 9

True or False: Reflexes are processed in the brain.

Answer 9

False

Question 10

What is the process of converting a stimulus into a response called?

Answer 10

Signal transduction.

Question 11

Fill in the blank: The _____ is the part of the neuron that receives signals.

Answer 11

Dendrite

Question 12

What is an action potential?

Answer 12

A rapid rise and fall in voltage across a cellular membrane.

Question 13

Multiple Choice: Which type of neuron carries impulses away from the CNS?

Answer 13

Motor neurons

Question 14

What structure connects neurons to each other?

Answer 14

Synapse

Question 15

True or False: The autonomic nervous system is voluntary.

Answer 15

False

Question 16

What are neurotransmitters?

Answer 16

Chemical messengers that transmit signals across synapses between neurons.

Question 17

Fill in the blank: The _____ nervous system prepares the body for ‘fight or flight’ responses.

Answer 17

Sympathetic

Question 18

What is the role of the spinal cord in the nervous system?

Answer 18

To transmit signals between the brain and the rest of the body.

Question 19

Multiple Choice: Which part of the neuron transmits signals away from the cell body?

Answer 19

Axon

Question 20

What is the primary function of the brain in the nervous system?

Answer 20

To process information and coordinate responses.

Question 21

True or False: The peripheral nervous system includes the brain and spinal cord.

Answer 21

False

Question 22

What is sensory adaptation?

Answer 22

The process by which sensitivity to a stimulus decreases after prolonged exposure.

Question 23

Fill in the blank: The _____ system regulates involuntary bodily functions such as heartbeat and digestion.

Answer 23

Autonomic

Question 24

What is a motor response?

Answer 24

A reaction that involves movement produced by the contraction of muscles.

Question 25

Multiple Choice: Which type of neuron is responsible for processing information within the CNS?

Answer 25

Interneurons

Question 26

What is the function of the myelin sheath?

Answer 26

To insulate axons and increase the speed of signal transmission.

Question 27

True or False: All stimuli result in a response.

Answer 27

False

Question 28

What is the role of the hypothalamus in the nervous system?

Answer 28

To regulate homeostasis and control the autonomic nervous system.

Question 29

Fill in the blank: The _____ reflex is a protective response to stimuli, such as pulling away from a hot surface.

Answer 29

Withdrawal

Question 30

What is the function of the cerebellum?

Answer 30

To coordinate voluntary movements and maintain posture and balance.

Question 31

Multiple Choice: Which part of the brain is primarily responsible for thinkning speech and other primary functions.

Answer 31

Cerebrum

Question 32

What is a somatic reflex?

Answer 32

A reflex that involves the contraction of skeletal muscles.

Question 33

True or False: Reflexes occur without the involvement of the brain.

Answer 33

True

Question 34

What is the role of the thalamus?

Answer 34

To relay sensory information to the appropriate areas of the brain.

Question 35

Fill in the blank: The _____ is the basic functional unit of the nervous system.

Answer 35

Neuron

Question 36

What is the difference between a stimulus and a response?

Answer 36

A stimulus is an event that triggers a reaction, while a response is the action taken as a result.

Question 37

Multiple Choice: Which neurotransmitter is associated with mood regulation?

Answer 37

Serotonin

Question 38

What is the role of the corpus callosum?

Answer 38

To connect the left and right hemispheres of the brain.

Question 39

True or False: The nervous system can regenerate damaged neurons.

Answer 39

False

Question 40

What is the purpose of the reflex arc?

Answer 40

To enable a quick response to a stimulus without involving the brain.

Question 41

Fill in the blank: The _____ nervous system is involved in rest and digest functions.

Answer 41

Parasympathetic

Question 42

What is the significance of the blood-brain barrier?

Answer 42

It protects the brain from harmful substances in the bloodstream.

Question 43

Multiple Choice: Which type of glial cell supports and protects neurons?

Answer 43

Astrocytes

Question 44

What is the primary role of glial cells?

Answer 44

To provide support, nourishment, and protection to neurons.

Question 45

True or False: The spinal cord is responsible for integrating reflexes.

Answer 45

True