Unit 3 Exam

A  False

B  True

A  True

B  False

A  True

B  False

A  False

B  True

A  True

B  False

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

B  occurs after ovulation but prior to degeneration of the follicle

C  is triggered by an LH surge

D  involves shedding of the endometrium

E  is stimulated by HCG

A  stimulating FSH and LH production.

B  inhibiting FSH and LH production.

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

D  destroying the endometrium.

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

A  the beating of the egg’s flagella

B  rhythmic contractions of the uterus

C  the beating of cilia in the oviduct

D  the beating of the egg’s cilia

E  rhythmic contractions of the oviduct

A  in the vagina

B  in the uterus

C  in the upper part of the oviduct

D  in the lower part of the oviduct

E  in the ovary

A  basophils

B  macrophages

C  helper T cells

D  B cells

E  cytotoxic T cells

A  antibody

B  histamine

C  interferon

D  antigen

E  complement

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

B  we need to replace the vaccine used up last year

C  the immune system “forgets” the vaccine

D  not everybody got a flu shot last year

E  new flu strains are regularly evolving

A  passive

B  cell-mediated

C  nonspecific

D  active

E  humoral

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

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

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

D  None of the choices is correct.

E  The rapid multiplication of the invading microorganisms results 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  The left ventricle is responsible for systole, while the right ventricle is responsible for diastole.

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 contains the pacemaker.

A  Purkinje fibers

B  bundle of His

C  SA node

D  specialized muscle fibers

E  AV node

A  the aorta

B  a venule

C  an arteriole

D  either an artery or an arteriole

E  an artery

A  carrying carbon dioxide

B  carrying oxygen

C  hemoglobin transport

D  fighting infections

E  blood clotting

A  tobacco products

B  products containing trans fats

C  fruits and vegetables

D  red meats

E  products that are high in cholesterol

A  arterioles

B  veins

C  capillaries

D  venules

E  arteries

A  pulmonary arteries

B  pulmonary veins

C  left ventricle

D  left atrium

E  aorta

A  ventricular defibrillation

B  heart murmur

C  anemia

D  hypertension

E  blockage of a coronary artery

A  a negative feedback mechanism.

B  response to external stimuli.

C  a positive feedback mechanism.

D  a combination of negative and positive feedback.

E  lack of control over homeostasis.

A  increased blood flow to the skin

B  slowing of the heart rate

C  constriction of blood vessels in the skin

D  retention of water

E  contraction of muscles

A  is a pathological condition

B  is the maintenance of a relatively stable internal environment

C  is the maintenance of a constant internal state

D  is the way the internal environment influences the external environment

E  only comes into play when you are ill

A  a negative feedback mechanism

B  a hormone ultimately controlled by the brain

C  a positive feedback mechanism

D  a hormone produced in the kidney itself

E  nerve impulses from the brain