Unit 3 Exam

A  True

B  False

A  False

B  True

A  True

B  False

A  True

B  False

A  False

B  True

A  is stimulated by HCG

B  involves shedding of the endometrium

C  is triggered by an LH surge

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

E  occurs after ovulation but prior to degeneration of the follicle

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

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

C  destroying the endometrium.

D  stimulating FSH and LH production.

E  inhibiting FSH and LH production.

A  the beating of the egg’s cilia

B  rhythmic contractions of the uterus

C  rhythmic contractions of the oviduct

D  the beating of cilia in the oviduct

E  the beating of the egg’s flagella

A  in the ovary

B  in the vagina

C  in the upper part of the oviduct

D  in the lower part of the oviduct

E  in the uterus

A  basophils

B  helper T cells

C  cytotoxic T cells

D  B cells

E  macrophages

A  complement

B  antigen

C  antibody

D  interferon

E  histamine

A  not everybody got a flu shot last year

B  we need to replace the vaccine used up last year

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

D  the immune system “forgets” the vaccine

E  new flu strains are regularly evolving

A  cell-mediated

B  active

C  nonspecific

D  passive

E  humoral

A  None of the choices is correct.

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

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

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

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

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

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

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

D  The left ventricle contains the pacemaker.

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

A  Purkinje fibers

B  bundle of His

C  SA node

D  AV node

E  specialized muscle fibers

A  an artery

B  either an artery or an arteriole

C  a venule

D  the aorta

E  an arteriole

A  carrying oxygen

B  blood clotting

C  carrying carbon dioxide

D  fighting infections

E  hemoglobin transport

A  red meats

B  tobacco products

C  fruits and vegetables

D  products that are high in cholesterol

E  products containing trans fats

A  veins

B  venules

C  arterioles

D  capillaries

E  arteries

A  pulmonary veins

B  left ventricle

C  pulmonary arteries

D  left atrium

E  aorta

A  ventricular defibrillation

B  blockage of a coronary artery

C  anemia

D  heart murmur

E  hypertension

A  a negative feedback mechanism.

B  response to external stimuli.

C  lack of control over homeostasis.

D  a combination of negative and positive feedback.

E  a positive feedback mechanism.

A  contraction of muscles

B  slowing of the heart rate

C  constriction of blood vessels in the skin

D  retention of water

E  increased blood flow to the skin

A  is the way the internal environment influences the external environment

B  is a pathological condition

C  is the maintenance of a relatively stable internal environment

D  only comes into play when you are ill

E  is the maintenance of a constant internal state

A  a negative feedback mechanism

B  a positive feedback mechanism

C  a hormone produced in the kidney itself

D  a hormone ultimately controlled by the brain

E  nerve impulses from the brain