Which type of material is NOT transported by the blood?
A. blood gases
B. nutrients
C. lactic acid
D. neurotransmitters
E. hormones
(
Question 2) A white blood cell engulfing a bacterium is an example of blood functioning in
A. protection.
B. elimination.
C. maintenance.
D. transportation.
E. communication
(
Question 3) What is the effect of hormones secreted by the thymus gland?
A.
These hormones stimulate growth.
B.
These hormones lower blood calcium levels.
C.
These hormones increase blood calcium levels.
D.
These hormones increase blood glucose levels.
E.
These hormones stimulate the development of the immune system.
(
Question 4) Which of the following are released by damaged tissues and function as intercellular autocrine or paracrine signals?
A.
Aldosterone
B.
Epinephrine
C.
Erythropoietin
D.
Norepinephrine
E.
Prostaglandins
(
Question 5) Compounds released from cells that influence the same cell are called _____________.
A.
paracrine chemical messengers
B.
steroidal hormones
C.
neuropeptides
D.
tropic hormones
E.
autocrine chemical messengers
(
Question 6) Which of the following functions is associated with the blood?
A. delivery of oxygen to tissue cells
B. transport of digestive enzymes to the small intestine
C. maintenance of DNA content of egg cells
D. transport of neurotransmitters across synapses
E. electrical stimulation of the heart
(
Question 7) All of the following are changes due to age-related decreases in endocrine secretions, except
A.
decrease in muscle mass.
B.
decrease in bone mass.
C.
change in sleeping patterns.
D.
increased susceptibility to infection.
E.
inability to regulate blood glucose levels.
(
Question 8) Indicate which pair of hormones act antagonistically to one another.
A.
Estrogen:LH
B.
T3:T4
C.
Melatonin:calcitonin
D.
Testosterone: FSH
E.
Insulin:glucagon
(
Question 9) If insulin secretion is too low or its receptors are insensitive, all of the following effects are seen, except
A.
high blood glucose levels.
B.
polyuria.
C.
increased uptake of glucose to cells.
D.
increased thirst.
E.
polyphagia.
(
Question 10) The target tissue for melatonin is the __________________.
A.
gonads.
B.
anterior pituitary.
C.
posterior pituitary.
D.
liver.
E.
hypothalamus.
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