Nervous tissue

Question 1

What is the basic functional unit of the nervous system?

Answer 1

Neuron

Question 2

True or False: Glial cells are responsible for transmitting nerve impulses.

Answer 2

False

Question 3

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

Answer 3

dendrite

Question 4

What is the myelin sheath primarily made of?

Answer 4

Lipids

Question 5

Which type of glial cell is responsible for the formation of myelin in the central nervous system?

Answer 5

Oligodendrocytes

Question 6

What is the role of astrocytes in the nervous system?

Answer 6

They provide structural support and regulate the extracellular environment.

Question 7

Multiple choice: Which of the following is NOT a type of neuron? A) Sensory B) Interneuron C) Epithelial D) Motor

Answer 7

C) Epithelial

Question 8

What is the term for the junction between two neurons?

Answer 8

Synapse

Question 9

True or False: Action potentials can travel backward along an axon.

Answer 9

False

Question 10

Fill in the blank: The gap between the axon of one neuron and the dendrite of another is called the ______.

Answer 10

synaptic cleft

Question 11

What neurotransmitter is primarily involved in muscle contraction?

Answer 11

Acetylcholine

Question 12

Which part of the neuron conducts impulses away from the cell body?

Answer 12

Axon

Question 13

What is the resting membrane potential of a typical neuron?

Answer 13

-70 mV

Question 14

Multiple choice: Which type of glial cell is known for engulfing pathogens and debris? A) Microglia B) Astrocytes C) Ependymal cells D) Oligodendrocytes

Answer 14

A) Microglia

Question 15

What is the primary function of the sodium-potassium pump in neurons?

Answer 15

To maintain the resting membrane potential by moving Na+ out and K+ into the cell.

Question 16

Fill in the blank: The ______ is the part of the neuron that contains the nucleus.

Answer 16

cell body

Question 17

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

Answer 17

True

Question 18

What is the primary role of the peripheral nervous system?

Answer 18

To connect the central nervous system to the rest of the body.

Question 19

Multiple choice: Which glial cell lines the ventricles of the brain? A) Astrocytes B) Ependymal cells C) Microglia D) Schwann cells

Answer 19

B) Ependymal cells

Question 20

What is the function of Schwann cells?

Answer 20

To produce myelin in the peripheral nervous system.

Question 21

Fill in the blank: Neurotransmitters are released from the ______ of a neuron.

Answer 21

axon terminals

Question 22

What is the role of the blood-brain barrier?

Answer 22

To protect the brain from harmful substances in the blood.

Question 23

True or False: All neurons are capable of regeneration after injury.

Answer 23

False

Question 24

What is the term for the increase in the strength of a stimulus that leads to an action potential?

Answer 24

Threshold

Question 25

Multiple choice: Which of the following is a type of sensory neuron? A) Afferent B) Efferent C) Interneuron D) Motor

Answer 25

A) Afferent

Question 26

Fill in the blank: The ______ nervous system controls involuntary bodily functions.

Answer 26

autonomic

Question 27

What are the two main divisions of the nervous system?

Answer 27

Central nervous system and peripheral nervous system.

Question 28

True or False: The axon hillock is where action potentials are typically initiated.

Answer 28

True

Question 29

What is a reflex arc?

Answer 29

A neural pathway that controls a reflex action.

Question 30

Multiple choice: Which neurotransmitter is associated with mood regulation? A) Glutamate B) Serotonin C) GABA D) Dopamine

Answer 30

B) Serotonin

Question 31

Fill in the blank: The ______ is the largest part of the brain and is responsible for higher cognitive functions.

Answer 31

cerebrum

Question 32

What is the function of the cerebellum?

Answer 32

To coordinate voluntary movements and maintain balance.

Question 33

True or False: The hypothalamus regulates body temperature, hunger, and thirst.

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

Multiple choice: Which part of the brain is responsible for breathing regulation? A) Cerebellum B) Medulla oblongata C) Pons D) Corpus callosum

Answer 35

B) Medulla oblongata

Question 36

Fill in the blank: The ______ lobe is primarily responsible for processing visual information.

Answer 36

occipital

Question 37

What is the function of the frontal lobe?

Answer 37

To control reasoning, planning, and voluntary motor activity.

Question 38

True or False: The limbic system is involved in emotion and memory.

Answer 38

True

Question 39

What type of glial cell produces cerebrospinal fluid?

Answer 39

Ependymal cells

Question 40

Multiple choice: Which of the following is a major neurotransmitter in the central nervous system? A) Acetylcholine B) Norepinephrine C) Epinephrine D) All of the above

Answer 40

D) All of the above

Question 41

Fill in the blank: The ______ is the part of the brain that connects the two hemispheres.

Answer 41

corpus callosum

Question 42

What is the function of the peripheral nervous system?

Answer 42

To carry signals between the central nervous system and the rest of the body.

Question 43

True or False: Neurons can communicate through both electrical and chemical signals.

Answer 43

True

Question 44

What is the term for a neuron that carries impulses toward the central nervous system?

Answer 44

Afferent neuron

Question 45

Multiple choice: Which neurotransmitter is known as the 'feel-good' neurotransmitter? A) Serotonin B) Dopamine C) Norepinephrine D) GABA

Answer 45

B) Dopamine

Question 46

Fill in the blank: The ______ is the outer layer of the brain, responsible for higher cognitive functions.

Answer 46

cerebral cortex

Question 47

What is the primary role of the autonomic nervous system?

Answer 47

To control involuntary bodily functions.

Question 48

True or False: Schwann cells can only myelinate one axon at a time.

Answer 48

True