Nervous System

Question 1

What is the basic functional unit of the nervous system?

Answer 1

Neuron

Question 2

True or False: The central nervous system consists of the brain and spinal cord.

Answer 2

True

Question 3

What are the two main divisions of the nervous system?

Answer 3

Central nervous system and peripheral nervous system

Question 4

Fill in the blank: Neurons communicate with each other through _______.

Answer 4

Synapses

Question 5

What type of neuron carries signals from the sensory organs to the central nervous system?

Answer 5

Sensory neuron

Question 6

What is the function of motor neurons?

Answer 6

To carry signals from the central nervous system to muscles and glands

Question 7

What are the supporting cells of the nervous system called?

Answer 7

Glial cells

Question 8

True or False: The myelin sheath increases the speed of nerve impulse transmission.

Answer 8

True

Question 9

What is the role of the autonomic nervous system?

Answer 9

To regulate involuntary body functions

Question 10

What part of the neuron receives incoming signals?

Answer 10

Dendrites

Question 11

Multiple Choice: Which part of the brain is responsible for balance and coordination? A) Cerebrum B) Cerebellum C) Brainstem

Answer 11

B) Cerebellum

Question 12

Fill in the blank: The _______ nervous system is responsible for the ‘fight or flight’ response.

Answer 12

Sympathetic

Question 13

What is the primary function of the spinal cord?

Answer 13

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

Question 14

True or False: Reflex actions occur without the involvement of the brain.

Answer 14

True

Question 15

What is the role of neurotransmitters?

Answer 15

To transmit signals across synapses between neurons

Question 16

What is the difference between the somatic and autonomic nervous systems?

Answer 16

The somatic nervous system controls voluntary movements, while the autonomic nervous system controls involuntary functions.

Question 17

What is a synapse?

Answer 17

The junction between two neurons where communication occurs.

Question 18

Fill in the blank: The _______ lobe of the brain is responsible for processing visual information.

Answer 18

Occipital

Question 19

What is the function of the frontal lobe?

Answer 19

To control reasoning, planning, movement, and emotions.

Question 20

Multiple Choice: Which structure connects the two hemispheres of the brain? A) Medulla oblongata B) Corpus callosum C) Thalamus

Answer 20

B) Corpus callosum

Question 21

What is the primary role of the thalamus?

Answer 21

To act as a relay station for sensory information.

Question 22

True or False: The peripheral nervous system includes cranial and spinal nerves.

Answer 22

True

Question 23

What is an action potential?

Answer 23

A rapid change in the electrical charge of a neuron that propagates along its axon.

Question 24

Fill in the blank: The _______ is the part of the neuron that transmits impulses away from the cell body.

Answer 24

Axon

Question 25

What is the role of the medulla oblongata?

Answer 25

To control autonomic functions such as breathing and heart rate.

Question 26

What is a reflex arc?

Answer 26

The neural pathway that mediates a reflex action.

Question 27

Multiple Choice: Which part of the brain regulates sleep and arousal? A) Cerebellum B) Hypothalamus C) Hippocampus

Answer 27

B) Hypothalamus

Question 28

What is the function of the limbic system?

Answer 28

To regulate emotions and memory.

Question 29

True or False: The brain is divided into four main lobes.

Answer 29

True

Question 30

What is the role of the somatic nervous system?

Answer 30

To control voluntary movements of skeletal muscles.

Question 31

Fill in the blank: The _______ is responsible for forming new memories.

Answer 31

Hippocampus

Question 32

What is the function of the cerebrum?

Answer 32

To process sensory information and coordinate voluntary movements.

Question 33

What is the primary role of glial cells?

Answer 33

To support and protect neurons.

Question 34

Multiple Choice: Which part of the brain is involved in regulating heartbeat and breathing? A) Cerebellum B) Brainstem C) Cerebrum

Answer 34

B) Brainstem

Question 35

What is the function of the hypothalamus?

Answer 35

To maintain homeostasis and regulate hormonal functions.

Question 36

True or False: Neurons can regenerate after injury.

Answer 36

False

Question 37

What are the two types of cells found in nervous tissue?

Answer 37

Neurons and glial cells

Question 38

Fill in the blank: The _______ division of the autonomic nervous system conserves energy.

Answer 38

Parasympathetic

Question 39

What is the role of the corpus callosum?

Answer 39

To connect the left and right hemispheres of the brain.

Question 40

What is the function of the brainstem?

Answer 40

To control basic life functions such as breathing and heart rate.

Question 41

Multiple Choice: Which type of glial cell myelinates neurons in the central nervous system? A) Schwann cells B) Oligodendrocytes C) Astrocytes

Answer 41

B) Oligodendrocytes

Question 42

What is the role of sensory receptors?

Answer 42

To detect stimuli from the environment.

Question 43

True or False: The right hemisphere of the brain is primarily responsible for logical reasoning.

Answer 43

False

Question 44

What is the primary function of the occipital lobe?

Answer 44

To process visual information.

Question 45

Fill in the blank: The _______ nervous system is responsible for voluntary muscle movements.

Answer 45

Somatic

Question 46

What is a neurotransmitter?

Answer 46

A chemical that transmits signals across a synapse.

Question 47

Multiple Choice: Which part of the nervous system is responsible for involuntary actions? A) Central nervous system B) Somatic nervous system C) Autonomic nervous system

Answer 47

C) Autonomic nervous system

Question 48

What is the role of the cerebellum?

Answer 48

To coordinate voluntary movements and maintain posture.

Question 49

True or False: The peripheral nervous system is divided into the somatic and autonomic systems.

Answer 49

True

Question 50

What is the function of the spinal cord?

Answer 50

To relay information between the brain and the rest of the body.

Question 51

Fill in the blank: The _______ is the outer layer of the brain.

Answer 51

Cerebral cortex

Question 52

What is the role of the thalamus in sensory perception?

Answer 52

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

Question 53

Multiple Choice: Which structure is responsible for regulating body temperature? A) Hippocampus B) Hypothalamus C) Amygdala

Answer 53

B) Hypothalamus

Question 54

What is the function of the amygdala?

Answer 54

To process emotions such as fear and pleasure.

Question 55

True or False: Glial cells are involved in the transmission of nerve impulses.

Answer 55

False

Question 56

What is the primary role of the frontal lobe?

Answer 56

To control higher cognitive functions, including attention and decision-making.