Unit 3 Exam

A  True

B  False

A  False

B  True

A  True

B  False

A  True

B  False

A  False

B  True

A  occurs after ovulation but prior to degeneration of the follicle

B  is stimulated by HCG

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

D  is triggered by an LH surge

E  involves shedding of the endometrium

A  inhibiting FSH and LH production.

B  destroying the endometrium.

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

D  stimulating FSH and LH production.

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

A  the beating of the egg’s cilia

B  rhythmic contractions of the uterus

C  rhythmic contractions of the oviduct

D  the beating of the egg’s flagella

E  the beating of cilia in the oviduct

A  in the vagina

B  in the ovary

C  in the lower part of the oviduct

D  in the upper part of the oviduct

E  in the uterus

A  cytotoxic T cells

B  macrophages

C  helper T cells

D  B cells

E  basophils

A  interferon

B  complement

C  antigen

D  histamine

E  antibody

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

B  not everybody got a flu shot last year

C  new flu strains are regularly evolving

D  the immune system “forgets” the vaccine

E  we need to replace the vaccine used up last year

A  nonspecific

B  passive

C  humoral

D  active

E  cell-mediated

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

B  The rapid multiplication of the invading microorganisms results 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 brain’s temperature control center responds to inflammation by creating a hot environment unfavorable to microorganisms.

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  bundle of His

B  SA node

C  Purkinje fibers

D  specialized muscle fibers

E  AV node

A  either an artery or an arteriole

B  an artery

C  a venule

D  an arteriole

E  the aorta

A  blood clotting

B  carrying carbon dioxide

C  fighting infections

D  carrying oxygen

E  hemoglobin transport

A  products that are high in cholesterol

B  tobacco products

C  fruits and vegetables

D  products containing trans fats

E  red meats

A  arteries

B  capillaries

C  venules

D  veins

E  arterioles

A  pulmonary veins

B  pulmonary arteries

C  left atrium

D  aorta

E  left ventricle

A  blockage of a coronary artery

B  hypertension

C  heart murmur

D  anemia

E  ventricular defibrillation

A  a combination of negative and positive feedback.

B  a positive feedback mechanism.

C  a negative feedback mechanism.

D  response to external stimuli.

E  lack of control over homeostasis.

A  contraction of muscles

B  constriction of blood vessels in the skin

C  increased blood flow to the skin

D  retention of water

E  slowing of the heart rate

A  is the maintenance of a constant internal state

B  is the maintenance of a relatively stable internal environment

C  is a pathological condition

D  only comes into play when you are ill

E  is the way the internal environment influences the external environment

A  a hormone produced in the kidney itself

B  a hormone ultimately controlled by the brain

C  nerve impulses from the brain

D  a negative feedback mechanism

E  a positive feedback mechanism