Question 1

The peroneal nerve:
A) Runs down the outside of the lower leg
B) Is found in the groin
C) Innervates the upper gastrointestinal tract
D) Influences the movements of the diaphragm

Accepted Answer

The peroneal nerve runs down the outside of the lower leg. It begins below the tibial plateau on the lateral border of the leg and runs down toward the ankle.

Question 2

The pudendal nerve:
A) Runs down the outside of the lower leg
B) Is found in the groin
C) Innervates the upper gastrointestinal tract
D) Influences the movements of the diaphragm

Accepted Answer

The pudenal nerve innervates the vagina, the perineum, and other locations in the "groin."

Question 3

The celiac plexus:
A) Runs down the outside of the lower leg
B) Is found in the groin
C) Innervates the upper gastrointestinal tract
D) Influences the movements of the diaphragm

Accepted Answer

The celiac plexus innervates the upper gastrointestinal tract, e.g. the stomach and neighboring organs.

Question 4

The phrenic nerve:
A) Runs down the outside of the lower leg
B) Is found in the groin
C) Innervates the upper gastrointestinal tract
D) Influences the movements of the diaphragm

Accepted Answer

The phrenic nerve innervates the diaphragm-the large muscle that separates the pleural and peritoneal cavities.

Question 5

Sensory nerves:
A) Detect pressure
B) Make muscles move
C) Cause glands to secrete
D) All of the above
E) None of the above

Accepted Answer

Sensory nerves detect pressure, vibration, pain, and temperature, among other data.

Question 6

Motor nerves
A) Detect vibration
B) Make muscles twitch
C) Cause glands to withhold their secretions
D) All of the above
E) None of the above

Accepted Answer

Motor nerves make muscles contract or twitch.

Question 7

A nerve block is also known as:
A) Regional anesthesia
B) Paralysis
C) Blindness
D) None of the above

Accepted Answer

A nerve block is a form of anesthesia, in which sensations from a nerve are interrupted by chemicals, such as lidocaine.

Question 8

A nerve synapse is a place where:
A) Nerve transmission is permanently blocked
B) Neurotransmitters are secreted
C) A cut nerve regenerates itself
D) All of the above
E) None of the above

Accepted Answer

Neurotransmitters (chemicals secreted by nerves that influence the activity of other nerves) are secreted at nerve synapses.

Question 9

Dendrites:
A) Are found only in the central nervous system
B) Are found only in the peripheral nervous system
C) Are components of all nerves. They relay information to the nerve cell body
D) Are components only of parasympathetic nerves. The relay information to nerve endings

Accepted Answer

Dendrites are components of all nerves.

Question 10

The speed of transmission of nervous impulses in axons is increased by:
A) Acetycholine
B) Myelin
C) Carbohydrates
D) Anesthetics

Accepted Answer

Myelin is a coating found on nerve axons that helps insulate them and speed the transmission of nervous impulses.

Question 11

Which of these nerves controls sensation in the middle of the hand?
A) The trigeminal nerve
B) The radial nerve
C) The median nerve
D) The ulnar nerve

Accepted Answer

The median nerve detects sensations from the middle of the hand. It runs through the carpal tunnel of the wrist.

Question 12

Which of these nerves detects painful sensations from the brain?
A) The facial nerve
B) The trigeminal nerve
C) The femoral nerve
D) All of the above
E) None of the above

Accepted Answer

The brain has no nerves that sense its own pain.

Question 13

An afferent nerve:
A) Makes muscles twitch
B) Controls glandular secretion
C) Feeds sensations to the central nervous system
D) All of the above
E) None of the above

Accepted Answer

An afferent nerve is a synonym for a "sensory nerve."

Question 14

Our sense of smell is mediated through:
A) The optic nerve
B) The acoustic nerve
C) The olfactory nerve
D) The oculomotor nerve

Accepted Answer

The olfactory nerve is the cranial nerve that detects odors. It travels through the cribriform plate of the skull to join the anterior part of the brain. The optic nerve senses vision; the acoustic nerve: hearing. The oculomotor nerve influences eye movements.

Question 15

Which of the following nerve types innervates visceral organs?
A) Sudomotor nerves
B) Pilomotor nerves
C) Peripheral nerves
D) Splanchnic nerves

Accepted Answer

Splanchnic nerves innervate visceral ("internal") organs, like the intestines, the pancreas, and the spleen

Question 16

The cerebellum:
A) Controls thought, planning and speech
B) Controls hearing and vision
C) Controls balance and coordination
D) Detects sensations from the skin

Accepted Answer

Cerebellum, which sits at the inferior and posterior part of the brain, plays a part in balance and coordination.

Question 17

The white matter of the brain is made of:
A) Fibrous tissue
B) Carbohydrates
C) Axons and dendrites
D) Cell bodies

Accepted Answer

The white matter of the brain is made up of axons and dendrites, which are coated with a white material called myelin. The grey matter of the brain is composed of neuronal cell bodies.

Question 18

A patient who suffers a stroke usually:
A) gains neurological function
B) loses neurological function

Accepted Answer

Most strokes permanently damage nerves in the central nervous system, and cause people to lose vital functions, like the ability to feel sensations, move parts of the body, or speak.

Quiz 26: Anatomy-Nerves

The peroneal nerve:

The pudendal nerve:

The celiac plexus:

The phrenic nerve:

Sensory nerves:

Motor nerves

A nerve block is also known as:

A nerve synapse is a place where:

Dendrites:

The speed of transmission of nervous impulses in axons is increased by:

Which of these nerves controls sensation in the middle of the hand?

Which of these nerves detects painful sensations from the brain?

An afferent nerve:

Our sense of smell is mediated through:

Which of the following nerve types innervates visceral organs?

The cerebellum:

The white matter of the brain is made of:

A patient who suffers a stroke usually: