Unit 3 Exam

A  False

B  True

A  True

B  False

A  False

B  True

A  True

B  False

A  True

B  False

A  is triggered by an LH surge

B  occurs after ovulation but prior to degeneration of the follicle

C  involves shedding of the endometrium

D  is stimulated by HCG

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

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

B  inhibiting FSH and LH production.

C  stimulating FSH and LH production.

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

E  destroying the endometrium.

A  rhythmic contractions of the uterus

B  the beating of cilia in the oviduct

C  the beating of the egg’s cilia

D  the beating of the egg’s flagella

E  rhythmic contractions of the oviduct

A  in the uterus

B  in the vagina

C  in the ovary

D  in the lower part of the oviduct

E  in the upper part of the oviduct

A  basophils

B  helper T cells

C  cytotoxic T cells

D  macrophages

E  B cells

A  antibody

B  complement

C  histamine

D  antigen

E  interferon

A  we need to replace the vaccine used up last year

B  not everybody got a flu shot last year

C  the immune system “forgets” the vaccine

D  new flu strains are regularly evolving

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

A  active

B  passive

C  nonspecific

D  humoral

E  cell-mediated

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  None of the choices is correct.

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

E  The rapid multiplication of the invading microorganisms results 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 systemic 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 pulmonary circuit.

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

A  SA node

B  Purkinje fibers

C  specialized muscle fibers

D  bundle of His

E  AV node

A  either an artery or an arteriole

B  a venule

C  an arteriole

D  an artery

E  the aorta

A  carrying carbon dioxide

B  hemoglobin transport

C  fighting infections

D  carrying oxygen

E  blood clotting

A  products that are high in cholesterol

B  products containing trans fats

C  tobacco products

D  fruits and vegetables

E  red meats

A  arteries

B  capillaries

C  arterioles

D  venules

E  veins

A  left ventricle

B  pulmonary veins

C  left atrium

D  pulmonary arteries

E  aorta

A  ventricular defibrillation

B  anemia

C  blockage of a coronary artery

D  heart murmur

E  hypertension

A  a positive feedback mechanism.

B  a combination of negative and positive feedback.

C  a negative feedback mechanism.

D  response to external stimuli.

E  lack of control over homeostasis.

A  increased blood flow to the skin

B  contraction of muscles

C  constriction of blood vessels in the skin

D  slowing of the heart rate

E  retention of water

A  is the maintenance of a relatively stable internal environment

B  is a pathological condition

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 positive feedback mechanism

C  nerve impulses from the brain

D  a hormone produced in the kidney itself

E  a hormone ultimately controlled by the brain