Question 1

Which of the following best describes the primary function of neuroglia in nervous tissue?

Accepted Answer

Providing electrical insulation and supporting neuron health

Question 2

A patient has a genetic disorder that prevents the formation of myelin sheaths in the peripheral nervous system. Which cell type is most likely affected?

Accepted Answer

Schwann cells

Question 3

Which structure on a neuron determines whether an action potential will be generated?

Accepted Answer

Axon hillock

Question 4

During the propagation of an action potential, which part of the neuron does the electrical signal travel along as it moves away from the soma?

Accepted Answer

Axon

Question 5

If the myelin sheath is damaged, what is the most likely effect on the action potential propagation?

Accepted Answer

Action potentials will propagate slower

Question 6

Which of the following is NOT a function of neuroglia?

Accepted Answer

Generating action potentials

Question 7

A histology slide shows large, less numerous cells with prominent processes and smaller, more numerous cells. Which are the large cells?

Accepted Answer

Neurons

Question 8

Which region of the neuron contains vesicles filled with neurotransmitter ready for release via exocytosis?

Accepted Answer

Axon terminal

Question 9

The spaces between Schwann cells along an axon are called:

Accepted Answer

Nodes of Ranvier

Question 10

Which of the following best explains why neurons are considered 'amitotic'?

Accepted Answer

They do not undergo mitosis after maturation

Question 11

A researcher is studying the cytoskeleton of neurons. Which structure should they focus on?

Accepted Answer

Neurofibrils

Question 12

Which of the following is a correct sequence for the flow of information in a multipolar neuron?

Accepted Answer

Dendrites → Soma → Axon hillock → Axon → Axon terminal

Question 13

Which cell type in nervous tissue is responsible for monitoring and responding to issues with nervous tissue health?

Accepted Answer

Neuroglia

Question 14

A patient presents with impaired neurotransmitter release at synapses. Which neuronal structure is most likely dysfunctional?

Accepted Answer

Axon terminal

Question 15

Which of the following best describes the role of dendrites in a neuron?

Accepted Answer

Receiving and integrating incoming signals

Question 16

If a neuron loses its myelin sheath, which equation best represents the change in conduction velocity ($$v) if $$the original velocity was $$v_0$$ and the new velocity is $$v_1$$?

Accepted Answer

$$v_1$$ \u003c $$v_0$$

Question 17

Which of the following is TRUE regarding the difference between neurons and neuroglia?

Accepted Answer

Neuroglia are mitotic while neurons are generally amitotic

Question 18

A nerve impulse travels from the axon hillock to the axon terminal. Which process is responsible for the release of neurotransmitters at the axon terminal?

Accepted Answer

Exocytosis

Question 19

Which of the following structures is NOT part of the receptive region of a neuron?

Accepted Answer

Axon

Question 20

A patient with multiple sclerosis experiences demyelination in the central nervous system. Which structure is most directly affected?

Accepted Answer

Myelin sheath

Histology of Nervous Tissue: Structure and Function

Guida di studio - Domande di pratica

Study guide - Flashcard