Unit 3 Exam

A  True

B  False

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  is stimulated by HCG

C  occurs after ovulation but prior to degeneration of the follicle

D  is triggered by an LH surge

E  involves shedding of the endometrium

A  stimulating FSH and LH production.

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

C  destroying the endometrium.

D  inhibiting FSH and LH production.

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

A  the beating of the egg’s cilia

B  rhythmic contractions of the oviduct

C  the beating of the egg’s flagella

D  the beating of cilia in the oviduct

E  rhythmic contractions of the uterus

A  in the vagina

B  in the lower part of the oviduct

C  in the uterus

D  in the ovary

E  in the upper part of the oviduct

A  basophils

B  B cells

C  macrophages

D  cytotoxic T cells

E  helper T cells

A  antigen

B  interferon

C  histamine

D  antibody

E  complement

A  new flu strains are regularly evolving

B  not everybody got a flu shot last year

C  the immune system “forgets” the vaccine

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

E  we need to replace the vaccine used up last year

A  humoral

B  nonspecific

C  cell-mediated

D  active

E  passive

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

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

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

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

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

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

D  The left ventricle contains the pacemaker.

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

A  AV node

B  bundle of His

C  Purkinje fibers

D  SA node

E  specialized muscle fibers

A  the aorta

B  a venule

C  an artery

D  either an artery or an arteriole

E  an arteriole

A  carrying carbon dioxide

B  fighting infections

C  carrying oxygen

D  blood clotting

E  hemoglobin transport

A  tobacco products

B  products that are high in cholesterol

C  fruits and vegetables

D  red meats

E  products containing trans fats

A  veins

B  arteries

C  capillaries

D  arterioles

E  venules

A  pulmonary arteries

B  left ventricle

C  left atrium

D  aorta

E  pulmonary veins

A  ventricular defibrillation

B  anemia

C  heart murmur

D  hypertension

E  blockage of a coronary artery

A  response to external stimuli.

B  a positive feedback mechanism.

C  a negative feedback mechanism.

D  a combination of negative and positive feedback.

E  lack of control over homeostasis.

A  slowing of the heart rate

B  retention of water

C  increased blood flow to the skin

D  contraction of muscles

E  constriction of blood vessels in the skin

A  only comes into play when you are ill

B  is the way the internal environment influences the external environment

C  is the maintenance of a constant internal state

D  is a pathological condition

E  is the maintenance of a relatively stable internal environment

A  a hormone ultimately controlled by the brain

B  a positive feedback mechanism

C  a negative feedback mechanism

D  a hormone produced in the kidney itself

E  nerve impulses from the brain