Unit 3 Exam

A  True

B  False

A  False

B  True

A  False

B  True

A  False

B  True

A  False

B  True

A  involves shedding of the endometrium

B  occurs after ovulation but prior to degeneration of the follicle

C  is triggered by an LH surge

D  is stimulated by HCG

E  is triggered by an increase in the levels of estrogen and progesterone

A  making the woman’s reproductive tract toxic to sperm.

B  immunizing the woman against human chorionic gonadotropin (hCG).

C  inhibiting FSH and LH production.

D  stimulating FSH and LH production.

E  destroying the endometrium.

A  rhythmic contractions of the oviduct

B  the beating of the egg’s cilia

C  the beating of the egg’s flagella

D  rhythmic contractions of the uterus

E  the beating of cilia in the oviduct

A  in the vagina

B  in the lower part of the oviduct

C  in the ovary

D  in the upper part of the oviduct

E  in the uterus

A  basophils

B  B cells

C  cytotoxic T cells

D  helper T cells

E  macrophages

A  interferon

B  histamine

C  antigen

D  complement

E  antibody

A  new flu strains are regularly evolving

B  the immune system “forgets” the vaccine

C  not everybody got a flu shot last year

D  we need to replace the vaccine used up last year

E  once you have had the flu, you need another vaccination

A  passive

B  active

C  cell-mediated

D  nonspecific

E  humoral

A  The microorganisms trick the brain’s temperature control center into creating a hot environment that favors their growth.

B  None of the choices is correct.

C  The rapid multiplication of the invading microorganisms results in extra heat production.

D  The brain’s temperature control center responds to inflammation by creating a hot environment unfavorable to microorganisms.

E  The inflammatory and immune responses result in extra heat production.

A  A more muscular wall is required to supply the pumping that powers the flow of blood into the systemic circuit.

B  A more muscular wall is required to supply the pumping that powers the flow of blood into the pulmonary circuit.

C  The position of the heart in the chest cavity allows for the left ventricle to develop a thicker wall than the right ventricle.

D  The left ventricle contains the pacemaker.

E  The left ventricle is responsible for systole, while the right ventricle is responsible for diastole.

A  AV node

B  bundle of His

C  specialized muscle fibers

D  Purkinje fibers

E  SA node

A  an arteriole

B  either an artery or an arteriole

C  a venule

D  an artery

E  the aorta

A  blood clotting

B  hemoglobin transport

C  carrying oxygen

D  fighting infections

E  carrying carbon dioxide

A  products that are high in cholesterol

B  fruits and vegetables

C  red meats

D  tobacco products

E  products containing trans fats

A  arterioles

B  capillaries

C  venules

D  veins

E  arteries

A  pulmonary veins

B  left atrium

C  left ventricle

D  pulmonary arteries

E  aorta

A  hypertension

B  ventricular defibrillation

C  heart murmur

D  anemia

E  blockage of a coronary artery

A  response to external stimuli.

B  a combination of negative and positive feedback.

C  a positive feedback mechanism.

D  a negative feedback mechanism.

E  lack of control over homeostasis.

A  slowing of the heart rate

B  contraction of muscles

C  increased blood flow to the skin

D  constriction of blood vessels in the skin

E  retention of water

A  is the way the internal environment influences the external environment

B  only comes into play when you are ill

C  is the maintenance of a constant internal state

D  is the maintenance of a relatively stable internal environment

E  is a pathological condition

A  a positive feedback mechanism

B  a hormone produced in the kidney itself

C  nerve impulses from the brain

D  a negative feedback mechanism

E  a hormone ultimately controlled by the brain