Unit 3 Exam

A  True

B  False

A  False

B  True

A  False

B  True

A  False

B  True

A  True

B  False

A  is triggered by an LH surge

B  is stimulated by HCG

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

D  involves shedding of the endometrium

E  occurs after ovulation but prior to degeneration of the follicle

A  stimulating FSH and LH production.

B  inhibiting FSH and LH production.

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

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

E  destroying the endometrium.

A  the beating of cilia in the oviduct

B  rhythmic contractions of the uterus

C  rhythmic contractions of the oviduct

D  the beating of the egg’s flagella

E  the beating of the egg’s cilia

A  in the upper part of the oviduct

B  in the vagina

C  in the uterus

D  in the ovary

E  in the lower part of the oviduct

A  helper T cells

B  cytotoxic T cells

C  basophils

D  macrophages

E  B cells

A  complement

B  antigen

C  interferon

D  histamine

E  antibody

A  the immune system “forgets” the vaccine

B  not everybody got a flu shot last year

C  new flu strains are regularly evolving

D  we need to replace the vaccine used up last year

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

A  nonspecific

B  passive

C  cell-mediated

D  active

E  humoral

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

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

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

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

E  None of the choices is correct.

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  The left ventricle contains the pacemaker.

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

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

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

A  Purkinje fibers

B  AV node

C  bundle of His

D  SA node

E  specialized muscle fibers

A  a venule

B  an artery

C  an arteriole

D  the aorta

E  either an artery or an arteriole

A  carrying oxygen

B  carrying carbon dioxide

C  fighting infections

D  hemoglobin transport

E  blood clotting

A  fruits and vegetables

B  products that are high in cholesterol

C  tobacco products

D  red meats

E  products containing trans fats

A  arterioles

B  venules

C  capillaries

D  arteries

E  veins

A  left atrium

B  left ventricle

C  pulmonary veins

D  aorta

E  pulmonary arteries

A  ventricular defibrillation

B  hypertension

C  heart murmur

D  blockage of a coronary artery

E  anemia

A  a positive feedback mechanism.

B  a negative feedback mechanism.

C  lack of control over homeostasis.

D  a combination of negative and positive feedback.

E  response to external stimuli.

A  retention of water

B  slowing of the heart rate

C  increased blood flow to the skin

D  constriction of blood vessels in the skin

E  contraction of muscles

A  is the maintenance of a relatively stable internal environment

B  only comes into play when you are ill

C  is a pathological condition

D  is the way the internal environment influences the external environment

E  is the maintenance of a constant internal state

A  a hormone produced in the kidney itself

B  a positive feedback mechanism

C  a negative feedback mechanism

D  nerve impulses from the brain

E  a hormone ultimately controlled by the brain