Unit 3 Exam

A  True

B  False

A  False

B  True

A  True

B  False

A  False

B  True

A  True

B  False

A  involves shedding of the endometrium

B  occurs after ovulation but prior to degeneration of the follicle

C  is stimulated by HCG

D  is triggered by an LH surge

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

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

B  stimulating FSH and LH production.

C  destroying the endometrium.

D  inhibiting FSH and LH production.

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

A  rhythmic contractions of the oviduct

B  the beating of the egg’s flagella

C  rhythmic contractions of the uterus

D  the beating of the egg’s cilia

E  the beating of cilia in the oviduct

A  in the vagina

B  in the upper part of the oviduct

C  in the ovary

D  in the lower part of the oviduct

E  in the uterus

A  helper T cells

B  basophils

C  macrophages

D  B cells

E  cytotoxic T cells

A  complement

B  antigen

C  antibody

D  histamine

E  interferon

A  the immune system “forgets” the vaccine

B  not everybody got a flu shot last year

C  we need to replace the vaccine used up last year

D  new flu strains are regularly evolving

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

A  nonspecific

B  cell-mediated

C  humoral

D  active

E  passive

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

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

C  None of the choices is correct.

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  The left ventricle contains the pacemaker.

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

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

A  specialized muscle fibers

B  AV node

C  SA node

D  bundle of His

E  Purkinje fibers

A  a venule

B  an arteriole

C  either an artery or an arteriole

D  an artery

E  the aorta

A  blood clotting

B  hemoglobin transport

C  carrying oxygen

D  fighting infections

E  carrying carbon dioxide

A  red meats

B  tobacco products

C  products that are high in cholesterol

D  fruits and vegetables

E  products containing trans fats

A  veins

B  venules

C  arterioles

D  arteries

E  capillaries

A  pulmonary arteries

B  left atrium

C  left ventricle

D  aorta

E  pulmonary veins

A  hypertension

B  blockage of a coronary artery

C  heart murmur

D  ventricular defibrillation

E  anemia

A  response to external stimuli.

B  a negative feedback mechanism.

C  a positive feedback mechanism.

D  a combination of negative and positive feedback.

E  lack of control over homeostasis.

A  constriction of blood vessels in the skin

B  increased blood flow to the skin

C  contraction of muscles

D  slowing of the heart rate

E  retention of water

A  is a pathological condition

B  is the way the internal environment influences the external environment

C  only comes into play when you are ill

D  is the maintenance of a relatively stable internal environment

E  is the maintenance of a constant internal state

A  nerve impulses from the brain

B  a positive feedback mechanism

C  a hormone ultimately controlled by the brain

D  a hormone produced in the kidney itself

E  a negative feedback mechanism