Question 1

Which function of the nervous system comes from the monitoring of external and internal stimuli?
A) Integration
B) Sensory input
C) Mental activity
D) Control of muscles and glands

Accepted Answer

Sensory input is the function of the nervous system that comes from the monitoring of external and internal stimuli.

Question 2

Which function of the nervous system comes from responding to changes in internal and external conditions?
A) Homeostasis
B) Mental activity
C) Integration
D) Sensory input

Accepted Answer

Homeostasis is the function of the nervous system that comes from responding to changes in internal and external conditions.

Question 3

Which function of the nervous system is the processing of sensory input and initiating responses?
A) Homeostasis
B) Mental activity
C) Integration
D) Sensory input

Accepted Answer

Integration is the function of the nervous system that involves processing sensory input and initiating responses.

Question 4

Sensory receptors and nerves make up the
A) Peripheral nervous system
B) Enteric nervous system
C) Autonomic nervous system
D) Central nervous system

Accepted Answer

The peripheral nervous system (PNS) includes sensory receptors and nerves that connect the central nervous system to the rest of the body.

Question 5

A bundle of axons and their connective tissue sheaths are called
A) Receptors
B) Nerves
C) Ganglia
D) Effectors

Accepted Answer

A bundle of axons and their connective tissue sheaths are called nerves.

Question 6

The enteric nervous system involves the
A) Respiratory system
B) Urinary system
C) Cardiovascular system
D) Digestive system

Accepted Answer

The enteric nervous system is a part of the autonomic nervous system that specifically governs the function of the gastrointestinal tract, which is part of the digestive system.

Question 7

Which subdivision of the autonomic nervous system regulates resting or vegetative functions?
A) Parasympathetic
B) Enteric
C) Somatic
D) Sympathetic

Accepted Answer

The parasympathetic nervous system is responsible for regulating resting or vegetative functions, often referred to as "rest and digest" activities.

Question 8

What organelle in the neuron is the primary site of protein synthesis?
A) Rough ER
B) Smooth ER
C) Nucleolus
D) Nissl substance

Accepted Answer

The Nissl substance, also known as rough endoplasmic reticulum, is the primary site of protein synthesis in neurons.

Question 9

The output part of a neuron is the
A) Dendrite
B) Nissl substance
C) Axon
D) Soma

Accepted Answer

The axon is responsible for transmitting signals away from the neuron's cell body to other neurons or muscles, making it the output part of a neuron.

Question 10

The area of the neuron cell body that generates the action potential is the
A) Trigger zone
B) Soma
C) Dendritic spine
D) None of the choices is correct

Accepted Answer

The trigger zone is the area of the neuron, typically at the axon hillock, where the action potential is initiated.

Question 11

Neurotransmitters are found in the
A) Dendritic spines
B) Presynaptic terminals
C) Trigger zone
D) Soma

Accepted Answer

Neurotransmitters are stored in vesicles located in the presynaptic terminals of neurons, where they are released into the synaptic cleft to transmit signals to other neurons.

Question 12

The input part of a neuron are the
A) Axons
B) Somas
C) Dendrites
D) Collaterals

Accepted Answer

Dendrites are the structures in a neuron that receive signals from other neurons, making them the input part of the neuron.

Question 13

Which of the following is NOT a functional classification of neurons?
A) Interneuron
B) Bipolar neuron
C) Sensory neuron
D) Motor neuron

Accepted Answer

Bipolar neurons are not a functional classification of neurons. They are a structural classification based on the number of processes extending from the cell body.

Question 14

Which of the following is NOT a structural classification of neurons?
A) Unipolar neuron
B) Bipolar neuron
C) Association neuron
D) Multipolar neuron

Accepted Answer

Association neuron is a functional classification, not a structural classification of neurons.

Question 15

Most sensory neurons are
A) Unipolar
B) Multipolar
C) Bipolar
D) Tripolar

Accepted Answer

Most sensory neurons are unipolar, meaning they have a single process that splits into two branches, one connecting to sensory receptors and the other to the central nervous system.

Question 16

Multipolar neurons include
A) Most CNS neurons and motor neurons
B) Most PNS neurons
C) Sensory and motor neurons
D) None of the choices are correct

Accepted Answer

Multipolar neurons are the most common type of neuron in the central nervous system (CNS) and include motor neurons.

Question 17

Which of the following is NOT characteristic of neuroglia?
A) Account for over half of the brain's weight
B) Can conduct an impulse
C) Support neurons in the CNS and PNS
D) Help protect neurons

Accepted Answer

Neuroglia, or glial cells, do not conduct impulses; their primary roles are to support, protect, and nourish neurons.

Question 18

Which of the following neuroglia are NOT found in the CNS?
A) Schwann cells
B) Oligodendrocytes
C) Astrocytes
D) Ependymal cells

Accepted Answer

Schwann cells are found in the peripheral nervous system (PNS), not the central nervous system (CNS).

Question 19

Which type of neuroglial cells are responsible for the formation of the blood-brain barrier?
A) Schwann cells
B) Oligodendrocytes
C) Astrocytes
D) Ependymal cells

Accepted Answer

Astrocytes are responsible for the formation of the blood-brain barrier by providing support and regulating the passage of substances between the bloodstream and the brain.

Question 20

Which neuroglial cells are the most abundant in the CNS?
A) Microglia
B) Ependymal cells
C) Oligodendrocytes
D) Astrocytes

Accepted Answer

Astrocytes are the most abundant neuroglial cells in the central nervous system (CNS), playing key roles in supporting neurons, maintaining the blood-brain barrier, and regulating the extracellular environment.

Quiz 10: Functional Organization of Nervous Tissue

Which function of the nervous system comes from the monitoring of external and internal stimuli?

Which function of the nervous system comes from responding to changes in internal and external conditions?

Which function of the nervous system is the processing of sensory input and initiating responses?

Sensory receptors and nerves make up the

A bundle of axons and their connective tissue sheaths are called

The enteric nervous system involves the

Which subdivision of the autonomic nervous system regulates resting or vegetative functions?

What organelle in the neuron is the primary site of protein synthesis?

The output part of a neuron is the

The area of the neuron cell body that generates the action potential is the

Neurotransmitters are found in the

The input part of a neuron are the

Which of the following is NOT a functional classification of neurons?

Which of the following is NOT a structural classification of neurons?

Most sensory neurons are

Multipolar neurons include

Which of the following is NOT characteristic of neuroglia?

Which of the following neuroglia are NOT found in the CNS?

Which type of neuroglial cells are responsible for the formation of the blood-brain barrier?

Which neuroglial cells are the most abundant in the CNS?