Types of Neurons

Question 1

What are the three main types of neurons?

Answer 1

Sensory neurons, Interneurons, Motor neurons.

Question 2

True or False: Sensory neurons transmit signals from the brain to muscles.

Answer 2

False.

Question 3

Fill in the blank: _______ neurons connect sensory and motor neurons.

Answer 3

Interneurons.

Question 4

What is the primary function of sensory neurons?

Answer 4

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

Question 5

Which type of neuron is responsible for muscle contraction?

Answer 5

Motor neurons.

Question 6

True or False: Interneurons are only found in the peripheral nervous system.

Answer 6

False.

Question 7

What do motor neurons do?

Answer 7

They transmit signals from the central nervous system to effectors like muscles and glands.

Question 8

Identify the type of neuron: A neuron that processes information within the central nervous system.

Answer 8

Interneuron.

Question 9

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

Answer 9

C) Glial.

Question 10

What part of the neuron receives signals from other neurons?

Answer 10

Dendrites.

Question 11

True or False: The axon is responsible for transmitting nerve impulses away from the cell body.

Answer 11

True.

Question 12

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

Answer 12

Cell body.

Question 13

What is the function of myelin sheath?

Answer 13

To insulate the axon and increase the speed of nerve impulse transmission.

Question 14

Multiple Choice: Which type of neuron primarily responds to environmental stimuli? A) Motor B) Sensory C) Interneuron D) Glial

Answer 14

B) Sensory.

Question 15

What is the role of interneurons in reflex actions?

Answer 15

They facilitate communication between sensory and motor neurons.

Question 16

True or False: All neurons have myelin sheaths.

Answer 16

False.

Question 17

Fill in the blank: Neurons communicate through _______.

Answer 17

Synapses.

Question 18

What is the significance of the synaptic cleft?

Answer 18

It is the gap between neurons where neurotransmitters are released.

Question 19

Multiple Choice: What type of neuron would be activated by touching a hot surface? A) Motor B) Sensory C) Interneuron D) None of the above

Answer 19

B) Sensory.

Question 20

What is the primary role of motor neurons in the nervous system?

Answer 20

To convey commands from the brain and spinal cord to muscles and glands.

Question 21

True or False: Sensory neurons can be unipolar, bipolar, or multipolar.

Answer 21

True.

Question 22

Define ‘axon terminal’.

Answer 22

The end part of an axon where neurotransmitters are released.

Question 23

Fill in the blank: The _______ of a neuron is responsible for receiving incoming signals.

Answer 23

Dendrite.

Question 24

What is the main difference between sensory and motor neurons?

Answer 24

Sensory neurons carry information to the CNS, while motor neurons carry information away from the CNS.

Question 25

Multiple Choice: Which type of neuron is primarily involved in reflex arcs? A) Motor B) Sensory C) Interneuron D) All of the above

Answer 25

C) Interneuron.

Question 26

True or False: Motor neurons can only be found in the spinal cord.

Answer 26

False.

Question 27

What type of neuron would you expect to find in the retina of the eye?

Answer 27

Bipolar sensory neurons.

Question 28

Fill in the blank: The _______ is a fatty layer that surrounds the axon of some neurons.

Answer 28

Myelin sheath.

Question 29

What is the function of the node of Ranvier?

Answer 29

To facilitate rapid conduction of nerve impulses along myelinated axons.

Question 30

Multiple Choice: What do glial cells do? A) Transmit impulses B) Support and protect neurons C) Form synapses D) None of the above

Answer 30

B) Support and protect neurons.

Question 31

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

Answer 31

True.

Question 32

What is the role of neurotransmitters?

Answer 32

To transmit signals across synapses between neurons.

Question 33

Fill in the blank: Neurons communicate through electrical impulses known as _______.

Answer 33

Action potentials.

Question 34

What type of neuron connects two other neurons?

Answer 34

Interneuron.

Question 35

True or False: Motor neurons only innervate skeletal muscles.

Answer 35

False.

Question 36

What is the difference between unipolar and bipolar neurons?

Answer 36

Unipolar neurons have one process, while bipolar neurons have two processes.

Question 37

Multiple Choice: What is the primary role of sensory neurons? A) Process information B) Transmit information to CNS C) Control muscle movement D) None of the above

Answer 37

B) Transmit information to CNS.

Question 38

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

Answer 38

Axon.

Question 39

What are the two main types of nervous systems in the body?

Answer 39

Central nervous system and peripheral nervous system.

Question 40

True or False: Interneurons are the most abundant type of neuron in the human body.

Answer 40

True.

Question 41

What type of neuron is primarily responsible for voluntary movements?

Answer 41

Motor neurons.

Question 42

Multiple Choice: Which of the following neurons is involved in pain perception? A) Motor B) Sensory C) Interneuron D) None of the above

Answer 42

B) Sensory.

Question 43

Fill in the blank: Neurons are the _______ cells of the nervous system.

Answer 43

Functional.

Question 44

What is the primary function of the cell body in a neuron?

Answer 44

To maintain the life of the neuron and contain the nucleus.

Question 45

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

Answer 45

True.

Question 46

What are the small gaps between myelin sheaths called?

Answer 46

Nodes of Ranvier.

Question 47

Multiple Choice: Which of the following is NOT a function of glial cells? A) Provide support B) Insulate axons C) Transmit electrical impulses D) Maintain homeostasis

Answer 47

C) Transmit electrical impulses.