Inflammation, production of interferon, and ingestion of pathogens by phagocytes
are nonspecific cellular responses by which of the following?
A.) The internal aspect of adaptive immune system
B.) Antibody-mediated immunity
C.) The internal aspect of the innate immune system
D.) Passive immunity - ANSWER C.) The internal aspect of
the innate immune system
If the external barrier is breached, the second line of defense is the internal aspect
of the innate immune system, a collection of nonspecific cellular responses
(inflammation, production of interferon, ingestion of pathogens by phagocytes).
,What feature of the adaptive immune system decreases the amount of time it
takes for the body to respond to a particular antigen?
A.) Unbroken skin
B.) Memory Cells
C.) Cytotoxic T-cells
D.) Inflammation - ANSWER B.) Memory cells
Memory cells are a type of lymphocyte that responds more quickly to an antigen
upon reintroduction of the pathogen.
Which of the following occurs in the cardiac cycle if the impulse triggered a at the
sinoatrial mode never reaches the Purkinje fibers of the heart?
A.) The atria will not contract.
B.) There will be an absence of systole.
C.) The ventricles will not contract.
, D.) Diastole will shorten in duration. - ANSWER C.) The
ventricles will not contract.
The Purkinje fiber impulse causes the contraction of the ventricles.
Which of the following describes the link between damages villi and malnutrition?
A.) Damaged villi decrease the nutrient-absorbing surface area in the
gastrointestinal tract.
B.) If villi are damaged, the surface area of the stomach is decreased.
C.)Peristalsis of the large intestine will be diminished.
D.) Damaged villi cause gastric reflux disease. - ANSWER A.)
Damaged villi decrease the nutrient-absorbing surface area in the gastrointestinal
tract.
Villi of the small intestine provide a greater nutrient-absorbing surface area in the
gastrointestinal tract.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller a-grade. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.89. You're not tied to anything after your purchase.