Unit 3 Exam

A  False

B  True

A  False

B  True

A  True

B  False

A  False

B  True

A  True

B  False

A  involves shedding of the endometrium

B  is stimulated by HCG

C  occurs after ovulation but prior to degeneration of the follicle

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

E  is triggered by an LH surge

A  stimulating FSH and LH production.

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

C  inhibiting FSH and LH production.

D  destroying the endometrium.

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

A  rhythmic contractions of the uterus

B  the beating of the egg’s cilia

C  the beating of the egg’s flagella

D  rhythmic contractions of the oviduct

E  the beating of cilia in the oviduct

A  in the upper part of the oviduct

B  in the vagina

C  in the uterus

D  in the ovary

E  in the lower part of the oviduct

A  basophils

B  helper T cells

C  cytotoxic T cells

D  B cells

E  macrophages

A  complement

B  antigen

C  interferon

D  antibody

E  histamine

A  not everybody got a flu shot last year

B  we need to replace the vaccine used up last year

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

D  new flu strains are regularly evolving

E  the immune system “forgets” the vaccine

A  passive

B  humoral

C  cell-mediated

D  active

E  nonspecific

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 inflammatory and immune responses result in extra heat production.

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

E  None of the choices is correct.

A  The left ventricle contains the pacemaker.

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

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

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

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

A  bundle of His

B  AV node

C  specialized muscle fibers

D  Purkinje fibers

E  SA node

A  a venule

B  the aorta

C  an arteriole

D  either an artery or an arteriole

E  an artery

A  carrying oxygen

B  blood clotting

C  hemoglobin transport

D  fighting infections

E  carrying carbon dioxide

A  products that are high in cholesterol

B  fruits and vegetables

C  products containing trans fats

D  tobacco products

E  red meats

A  veins

B  capillaries

C  venules

D  arteries

E  arterioles

A  left atrium

B  aorta

C  pulmonary veins

D  left ventricle

E  pulmonary arteries

A  anemia

B  hypertension

C  heart murmur

D  ventricular defibrillation

E  blockage of a coronary artery

A  a positive feedback mechanism.

B  lack of control over homeostasis.

C  a negative feedback mechanism.

D  a combination of negative and positive feedback.

E  response to external stimuli.

A  retention of water

B  increased blood flow to the skin

C  contraction of muscles

D  slowing of the heart rate

E  constriction of blood vessels in the skin

A  only comes into play when you are ill

B  is a pathological condition

C  is the maintenance of a relatively stable internal environment

D  is the maintenance of a constant internal state

E  is the way the internal environment influences the external environment

A  nerve impulses from the brain

B  a hormone produced in the kidney itself

C  a hormone ultimately controlled by the brain

D  a positive feedback mechanism

E  a negative feedback mechanism