Unit 3 Exam

A  False

B  True

A  True

B  False

A  True

B  False

A  False

B  True

A  False

B  True

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

B  involves shedding of the endometrium

C  is stimulated by HCG

D  occurs after ovulation but prior to degeneration of the follicle

E  is triggered by an LH surge

A  stimulating FSH and LH production.

B  inhibiting FSH and LH production.

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

D  destroying the endometrium.

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

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 uterus

B  in the ovary

C  in the lower part of the oviduct

D  in the vagina

E  in the upper part of the oviduct

A  B cells

B  basophils

C  cytotoxic T cells

D  helper T cells

E  macrophages

A  antigen

B  histamine

C  complement

D  interferon

E  antibody

A  the immune system “forgets” the vaccine

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

C  not everybody got a flu shot last year

D  new flu strains are regularly evolving

E  we need to replace the vaccine used up last year

A  nonspecific

B  humoral

C  active

D  cell-mediated

E  passive

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

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

C  None of the choices is correct.

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

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 pulmonary circuit.

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

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  SA node

B  specialized muscle fibers

C  bundle of His

D  Purkinje fibers

E  AV node

A  an artery

B  a venule

C  an arteriole

D  the aorta

E  either an artery or an arteriole

A  carrying carbon dioxide

B  blood clotting

C  hemoglobin transport

D  fighting infections

E  carrying oxygen

A  products containing trans fats

B  tobacco products

C  red meats

D  fruits and vegetables

E  products that are high in cholesterol

A  veins

B  arteries

C  capillaries

D  venules

E  arterioles

A  left atrium

B  pulmonary arteries

C  aorta

D  pulmonary veins

E  left ventricle

A  ventricular defibrillation

B  heart murmur

C  hypertension

D  blockage of a coronary artery

E  anemia

A  response to external stimuli.

B  lack of control over homeostasis.

C  a positive feedback mechanism.

D  a combination of negative and positive feedback.

E  a negative feedback mechanism.

A  retention of water

B  constriction of blood vessels in the skin

C  slowing of the heart rate

D  contraction of muscles

E  increased blood flow to the skin

A  is the maintenance of a relatively stable internal environment

B  is the way the internal environment influences the external environment

C  is the maintenance of a constant internal state

D  only comes into play when you are ill

E  is a pathological condition

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