Ch 1 Flashcards
Cell Structure & Function
A couple is scheduled to obtain familial lineage studies. The nurse is aware that an analysis will occur identifying maternally inherited:
Mitochondrial RNA (pg. 7)
A caregiver is working with a client who is having poorly controlled pain due to shingles. The associated pain travels to the client’s nervous system via:
Afferent neurons (pg. 832)
A school nurse is teaching a class on immunity. Which statement contains an accurate explanation of cellular defense?
Neutrophils engulf invading organisms where lysosomes break them down. (pg. 5 &16)
Which form of signal transduction resulting from ligand-receptor binding has the potential to produce effects in the entire body system?
Endocrine (pg. 17)
The student is examining a tissue sample with a microscope. The student decides that it is squamous keratinized tissue. Which type of epithelial tissue is the student viewing?
Stratified epithelium (pg. 21)
The Golgi complex, or Golgi bodies, consist of stacks of thin, flattened vesicles or sacs within the cell. These Golgi bodies are found near the nucleus and function in association with the ER. What is one purpose of the Golgi complex?
Receive proteins and other substances from the cell surface by a retrograde transport mechanism. (pg. 4)
The majority of the cell’s protoplasm is which of the following?
Water (pg. 14-16)
What are the three main parts of a typical cell?
Nucleus
Cell membrane
Cytoplasm
(pg. 1)
Each skeletal muscle is a discrete organ made up of hundreds or thousands of muscle fibers. Although muscle fibers predominate, substantial amounts of connective tissue, blood vessels, and nerve fibers are also present. What happens during muscle contraction?
The thick myosin and thin actin filaments slide over each other, causing shortening of the muscle fiber (pg. 25)
A nurse practitioner has been asked to speak with the local high school track team about health, wellness, and nutrition. One of the athletes asks about the differences in the physiology of the energy used in sprinting versus long-distance running. Which response is the best answer?
Sprinter utilize ATP generated via anaerobic glycolysis, and distance runner utilize ATP generated via aerobic metabolism. (pg. 9)
Select the option that best describes the nucleus of the cell.
Contains the DNA that is essential for protein synthesis to keep the cell alive. (pg. 3)
Which of the following types of epithelium is found in the lining of blood vessels, lymph nodes, and alveoli of the lungs?
Simple squamous epithelium (pg. 20-21)
During a discussion on cellular components and their function, a student asked the instructor the purpose of messenger RNA (mRNA). Of the following, which is the most accurate answer?
Performs an active role in protein synthesis, where mRNA molecules direct the assembly of proteins on ribosomes to the cytoplasm. (pg. 3)
A nurse is providing care for a client with a diagnosis of Crohn’s disease. The nurse recognized the fact that the disease involves the inflammation and irritation of the intestinal lining. Which of the following types of tissue is most likely involved in the client’s pathology?
simple columnar epithelium (pg. 21)
The nurse educates a client with a suspected myocardial infarction (MI) about the blood test to evaluate troponin I levels. The nurse knows the education has been successful when the client says:
“This test is specific to components found in my heart muscle.” (pg. 26)