NURSE 395 - Pathophysiology Quizzes Unit 1 and 4. Questions and Answers.
Question 1: The student is examining a tissue sample with a
microscope. The
... [Show More] student decides that it is squamous
keratinized tissue. Which type of epithelial tissue is
the student viewing?
You selected: Stratified epithelium
Correct
Explanation: Stratified, squamous keratinized epithelium makes up
the epidermis of the skin. Simple epithelium is found
in the lining of blood vessels, lymph nodes, and
alveoli of the lungs. Gl ... (more)
Question 2: Which hormone messenger moves directly across
the lipid bilayer of the cell membrane and is
transported to the cell nucleus?
You selected: Thyroid hormones
Correct
Explanation: Some messengers, such as thyroid hormone and
steroid hormones, do not bind to membrane
receptors but move directly across the lipid bilayer of
the cell membrane and are transported to the cell
nucleus, where they influence DNA activity. (less)
Question 3: Which form of signal transduction resulting from
ligand-receptor binding has the potential to produce
effects in the entire body system?
You selected: Endocrine
Correct
Explanation: Cells communicate in several ways. In autocrine
signaling a cell releases a chemical to the
extracellular fluid which changes its own activity. In
paracrine signaling a cell releases a chemical to the
extracellular fluid, but enzymes rapidly metabolize
the chemicals so they only act on nearby cells. In
endocrine signaling the cells release chemical
mediators (hormones) that enter the bloodstream,
then bind to cell receptors throughout the body. A
ligand is a substance with a high affinity for the
receptor. (less)
Question 4: Select the main function of nervous tissue.
You selected: Communication
Correct
Explanation: Nervous tissue is designed for communication
purposes and includes the neurons, the supporting
neural structures, and the ependymal cells that line
the ventricles of the brain and the spinal canal.
Muscle tissue is a specialized tissue designed for
contractility. Connective tissue supports and connects
body structures. (less)
Question 5: When discussing the various functions of the cellular
parts, the pathophysiology professor asks a group of
students, "Where are the primary sites of protein
synthesis located in a cell?" Which student response
is correct?
You selected: Endoplasmic reticulum
Correct
Explanation: The endoplasmic reticulum (with its associated
ribosomes) and Golgi apparatus represent the
primary sites of protein synthesis in the cell.
Question 6: A patient experiencing immotile cilia
syndrome should be frequently assessed by the
nurse for which priority complication?
You selected: Bronchiectasis due to interferences with
clearance of inhaled bacteria along the
respiratory tract.
Correct
Explanation: immotile cilia syndrome immobilizes the cilia of the
respiratory tract, thus interfering with clearance of
inhaled bacteria, leading to the chronic lung disease
called bronchiectasis. (less)
Question 7: The nurse is aware of the importance of potassium
and sodium for normal physiologic functions of a
client. The rapid movement of potassium and sodium
in actions is known as:
You selected: Primary active transport
Correct
Explanation: Substances transported by primary active transport
are sodium, potassium, calcium, and hydrogen ions.
The active transport system studied in the greatest
detail is the sodium/potassium (Na+/K+)-adenosine
triphosphatase (ATPase) membrane pump.
Exocytosis is the mechanism for the secretion of
intracellular substances into the extracellular spaces.
Vesicular transport is a mechanism in which
materials are transported in membrane-bound
vesicles. Endocytosis occurs when materials are
moved into a cell in a vesicle formed from the cell
membrane. (less)
Question 8: The nurse is explaining the [Show Less]