chapter 14 Flashcards
(20 cards)
Which of the following is/are part of the body’s first line of defense against the invasion of foreign organisms?
white blood cells
cilia
fever
the skin
the skin
Hair-like protrusions that sweep foreign substances out of the lungs are called
cilia
macrophages
enzymes.
phagocytic cells.
cilia
Antibodies have complementary surface markers that bind to ________ on foreign microbes.
histamines
antigens
cytokines
T cells
antigens
A disease in which an individual’s immune system attacks his or her own body’s cells is called a(n)
natural immune disorder.
autoimmune disease.
antibody deficiency disease.
acquired immune response.
autoimmune disease.
Lymphocytes generated during an initial infection that circulate in the body for years and quickly respond to that infection if it ever appears again are called ________ cells.
memory T and B
killer T and B
helper T and B
suppressor T and B
memory T and B
Which of the following is NOT considered a common allergen?
mold
insect stings
pollen
viruses
viruses
Key components of a typical asthma attack include all of the following EXCEPT
inflammation of the airways.
secretion of extra mucus.
spasms in the muscles surrounding the airways.
an anaphylactic reaction.
an anaphylactic reaction.
Most ulcers are caused by
overconsumption of spicy food.
tick-borne rickettsias.
high levels of stress.
Helicobacter pylori infection.
Helicobacter pylori infection.
Generally, antibiotics are useful against
bacteria.
viruses.
allergens.
the flu.
bacteria
Most contagious diseases are caused by
allergans.
protozoa.
bacteria.
viruses
viruses
Influenza is highly contagious and is spread via
respiratory droplets.
bacteria in open wounds.
sharing food or drink.
hand-to-hand contact.
respiratory droplets.
The mildest form of hepatitis is hepatitis
A
B
C
E
A
Autoimmune diseases occur when
bacteria severely damage the immune system.
a virus such as HIV destroys the immune system.
cancer creates an imbalance in the immune system.
the body erroneously recognizes its own cells as foreign.
the body erroneously recognizes its own cells as foreign
Which one of the following statements about STIs is FALSE?
STIs can cause death.
STIs cannot be transmitted unless an infected person is presenting symptoms.
STIs can be prevented.
STIs are linked to infertility, stillbirths, and genital cancers.
STIs cannot be transmitted unless an infected person is presenting symptoms.
Human immunodeficiency virus (HIV)
is a member of the herpes virus family.
has been a source of human infection for more than 200 years.
attacks B cells.
disables the immune function of CD4 T cells.
disables the immune function of CD4 T cells.
Which of the following statements about the asymptomatic phase of HIV infection is TRUE?
During this period, people can transmit the disease to others even if they are symptom free.
During this period, the virus progressively infects and destroys cells of the immune system.
This period can last from 2 to 20 years.
All of these statements are true.
All of these statements are true.
Which of the following causes almost all cervical cancers?
trichomoniasis
pelvic inflammatory disease
human papillomavirus
syphilis
human papillomavirus
Which of the following statements about genital herpes is TRUE?
The virus can be transmitted to a sex partner even if no lesions are present.
After infection, the virus lies dormant in nerve cells and can reactivate at any time.
Genital herpes is a major risk factor in the transmission of HIV worldwide.
All of these statements are true.
All of these statements are true.
Hepatitis B is transmitted mainly by
contaminated food.
casual contact.
sexual contact.
organ donation.
sexual contact.
Hepatitis A is transmitted mainly by
contaminated food.
casual contact.
organ donation.
sexual contact.
contaminated food.
