Unit 3 Exam

A  True

B  False

A  True

B  False

A  False

B  True

A  False

B  True

A  False

B  True

A  is stimulated by HCG

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

C  involves shedding of the endometrium

D  is triggered by an LH surge

E  occurs after ovulation but prior to degeneration of the follicle

A  destroying the endometrium.

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

C  stimulating FSH and LH production.

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

E  inhibiting FSH and LH production.

A  the beating of cilia in the oviduct

B  rhythmic contractions of the oviduct

C  the beating of the egg’s cilia

D  the beating of the egg’s flagella

E  rhythmic contractions of the uterus

A  in the uterus

B  in the upper part of the oviduct

C  in the lower part of the oviduct

D  in the vagina

E  in the ovary

A  basophils

B  B cells

C  cytotoxic T cells

D  macrophages

E  helper T cells

A  antigen

B  antibody

C  histamine

D  interferon

E  complement

A  the immune system “forgets” the vaccine

B  new flu strains are regularly evolving

C  we need to replace the vaccine used up last year

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

E  not everybody got a flu shot last year

A  passive

B  cell-mediated

C  humoral

D  active

E  nonspecific

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

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  None of the choices is correct.

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

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 contains the pacemaker.

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

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

A  SA node

B  Purkinje fibers

C  bundle of His

D  specialized muscle fibers

E  AV node

A  an arteriole

B  an artery

C  either an artery or an arteriole

D  the aorta

E  a venule

A  carrying carbon dioxide

B  hemoglobin transport

C  carrying oxygen

D  fighting infections

E  blood clotting

A  products that are high in cholesterol

B  products containing trans fats

C  fruits and vegetables

D  red meats

E  tobacco products

A  arteries

B  venules

C  capillaries

D  arterioles

E  veins

A  pulmonary arteries

B  aorta

C  pulmonary veins

D  left ventricle

E  left atrium

A  hypertension

B  heart murmur

C  anemia

D  blockage of a coronary artery

E  ventricular defibrillation

A  a negative feedback mechanism.

B  lack of control over homeostasis.

C  a positive feedback mechanism.

D  response to external stimuli.

E  a combination of negative and positive feedback.

A  constriction of blood vessels in the skin

B  increased blood flow to the skin

C  retention of water

D  slowing of the heart rate

E  contraction of muscles

A  is the way the internal environment influences the external environment

B  is the maintenance of a constant internal state

C  is a pathological condition

D  is the maintenance of a relatively stable internal environment

E  only comes into play when you are ill

A  a hormone ultimately controlled by the brain

B  nerve impulses from the brain

C  a negative feedback mechanism

D  a positive feedback mechanism

E  a hormone produced in the kidney itself