Mastering A&P: Chapter 4 - Questions With
Correct Answers
The wall of the alveolus (air sac) in the lung is composed of which
type of epithelium? Correct Answer - simple squamous
epithelium
Yes, this single layer of squamous cells is ideal for the diffusion of
gases in the lungs.
The proximal tubule of the nephron (kidney tubule) in the kidney is
composed of which type of epithelium? Correct Answer -
simple cuboidal epithelium
Yes, the simple cuboidal cells line the kidney tubules (nephrons) so
that secretion and absorption can take place.
The epithelium of the esophagus is composed of which type of
epithelial tissue? Correct Answer - stratified squamous
epithelium
Yes, this epithelium protects underlying tissues from the wear and
tear of constant swallowing in the esophagus.
Which part of the neuron (a specialized nerve cell) receives signals
from other cells and is also the main metabolic region of the neuron?
Correct Answer - soma
Yes, the soma or cell body receives inputs (signals) from other cells
and sends the information to the axon. But unlike a dendrite, it also
is the main metabolic and nutritional center of the cell.
,Which of the three muscle cell types has multiple nuclei? Correct
Answer - skeletal
Yes, skeletal muscle cells are elongated and many can be quite long;
therefore, they have multiple nuclei.
Which muscle cell type has visible striations but is not under
voluntary control? Correct Answer - cardiac
Yes, cardiac cells, like skeletal cells, have visible striations but are
not under voluntary control.
Choose the answer that shows the correct order for the standard
preparation of a histological specimen. Correct Answer - (1)
fixation, (2) sectioning, (3) staining
The correct order for specimen preparation is fixation, then
sectioning, followed by staining.
Which tissue type consists of a sheet of cells that covers a body
surface or lines a body cavity? Correct Answer - epithelial
tissue
Epithelial tissue is a sheet of cells that covers a body surface or lines
a body cavity (epithe = laid on, covering). In addition to coverings
and linings, epithelial cells can also form glands, called glandular
epithelium.
Which type of epithelium lines the interior of the urinary bladder?
Correct Answer - transitional epithelium
Transitional epithelium forms the lining of hollow urinary organs,
which stretch as they fill with urine. The ability of transitional cells
to change their shape (undergo "transitions") allows a greater
, volume of urine to flow through the tube-like ureters and allows
more urine to be stored in the urinary bladder.
Which type of gland produces hormones? Correct Answer -
endocrine glands
Endocrine glands, which are ductless glands, secrete hormones into
the interstitial fluid surrounding them. The hormones then diffuse
toward and pass through a nearby capillary wall to enter the blood.
Circulating throughout the body in the blood stream is how
hormones eventually reach their target cells.
Which of the following epithelial tissue locations is NOT correctly
matched to its function? Correct Answer - skin: absorption
The keratinized stratified squamous epithelium of skin is designed
for protection, not absorption from the external environment.
Which of the following increases the surface area of certain
epithelial tissues? Correct Answer - microvilli
Microvilli are small finger-like projections that greatly increase the
surface area of epithelial cells (thus epithelial tissues), an important
attribute of tissues that have a role in absorption and secretion.
Which of the following is a property of epithelial tissue? Correct
Answer - Epithelial tissue is innervated.
Epithelial tissue is an innervated, avascular tissue that exhibits
polarity. Epithelial tissue is also highly regenerative.
Which of the following statements is INCORRECT? Correct Answer
- Simple cuboidal epithelia are found in areas that stretch.
Correct Answers
The wall of the alveolus (air sac) in the lung is composed of which
type of epithelium? Correct Answer - simple squamous
epithelium
Yes, this single layer of squamous cells is ideal for the diffusion of
gases in the lungs.
The proximal tubule of the nephron (kidney tubule) in the kidney is
composed of which type of epithelium? Correct Answer -
simple cuboidal epithelium
Yes, the simple cuboidal cells line the kidney tubules (nephrons) so
that secretion and absorption can take place.
The epithelium of the esophagus is composed of which type of
epithelial tissue? Correct Answer - stratified squamous
epithelium
Yes, this epithelium protects underlying tissues from the wear and
tear of constant swallowing in the esophagus.
Which part of the neuron (a specialized nerve cell) receives signals
from other cells and is also the main metabolic region of the neuron?
Correct Answer - soma
Yes, the soma or cell body receives inputs (signals) from other cells
and sends the information to the axon. But unlike a dendrite, it also
is the main metabolic and nutritional center of the cell.
,Which of the three muscle cell types has multiple nuclei? Correct
Answer - skeletal
Yes, skeletal muscle cells are elongated and many can be quite long;
therefore, they have multiple nuclei.
Which muscle cell type has visible striations but is not under
voluntary control? Correct Answer - cardiac
Yes, cardiac cells, like skeletal cells, have visible striations but are
not under voluntary control.
Choose the answer that shows the correct order for the standard
preparation of a histological specimen. Correct Answer - (1)
fixation, (2) sectioning, (3) staining
The correct order for specimen preparation is fixation, then
sectioning, followed by staining.
Which tissue type consists of a sheet of cells that covers a body
surface or lines a body cavity? Correct Answer - epithelial
tissue
Epithelial tissue is a sheet of cells that covers a body surface or lines
a body cavity (epithe = laid on, covering). In addition to coverings
and linings, epithelial cells can also form glands, called glandular
epithelium.
Which type of epithelium lines the interior of the urinary bladder?
Correct Answer - transitional epithelium
Transitional epithelium forms the lining of hollow urinary organs,
which stretch as they fill with urine. The ability of transitional cells
to change their shape (undergo "transitions") allows a greater
, volume of urine to flow through the tube-like ureters and allows
more urine to be stored in the urinary bladder.
Which type of gland produces hormones? Correct Answer -
endocrine glands
Endocrine glands, which are ductless glands, secrete hormones into
the interstitial fluid surrounding them. The hormones then diffuse
toward and pass through a nearby capillary wall to enter the blood.
Circulating throughout the body in the blood stream is how
hormones eventually reach their target cells.
Which of the following epithelial tissue locations is NOT correctly
matched to its function? Correct Answer - skin: absorption
The keratinized stratified squamous epithelium of skin is designed
for protection, not absorption from the external environment.
Which of the following increases the surface area of certain
epithelial tissues? Correct Answer - microvilli
Microvilli are small finger-like projections that greatly increase the
surface area of epithelial cells (thus epithelial tissues), an important
attribute of tissues that have a role in absorption and secretion.
Which of the following is a property of epithelial tissue? Correct
Answer - Epithelial tissue is innervated.
Epithelial tissue is an innervated, avascular tissue that exhibits
polarity. Epithelial tissue is also highly regenerative.
Which of the following statements is INCORRECT? Correct Answer
- Simple cuboidal epithelia are found in areas that stretch.
