Quiz 4 Flashcards
1
Q
- The higher of the two numbers given in blood pressure readings corresponds to:
Select one:
a. pressure during atrial contraction
b. pressure during passive filling of the heart
c. pressure in the aorta
d. pressure during diastole
e. pressure during ventricular contraction
A
e. pressure during ventricular contraction
2
Q
2. The hepatic portal vein transports material between: Select one: a. the lungs and the heart b. the small intestine and the liver c. different dimensions d. the lymphatic and circulatory systems e. the brain and the spinal cord
A
b. the small intestine and the liver
3
Q
- Our rate of breathing is controlled by chemoreceptors that detect
Select one:
a. loss of consciousness
b. carbon dioxide concentrations in the blood
c. conscious control mechanisms
d. oxygen concentrations in the alveoli
e. oxygen concentration in muscles
A
b. carbon dioxide concentrations in the blood
4
Q
4. The structure responsible for regulating contraction of the atria is the Select one: a. purkinje fiber b. sinoatrial node c. cardiac muscle d. atrioventricular bundle e. heartbeat
A
b. sinoatrial node
5
Q
5. The principal functional unit in human kidneys is called the Select one: a. loop of Henry b. renal capillary c. nephron d. convoluted capsule e. renal cortex
A
c. nephron
6
Q
6. The main nitrogenous waste product of humans is Select one: a. uric acid b. ammoniac c. nitrate d. urine e. urea
A
e. urea
7
Q
- Which is NOT true of anti-diuretic hormone
Select one:
a. it increases water reabsorption in the kidney
b. released by the posterior pituitary gland
c. it increases urine volume
d. secretion is stimulated by high blood solute concentration
e. secretion decreases when you drink a lot of water
A
c. it increases urine volume
8
Q
8. Oxygen in blood is transported mainly Select one: a. as microscopic bubbles b. bound to hemoglobin c. dissolved in plasma d. as bicarbonate ions e. combined with carbon dioxide
A
b. bound to hemoglobin
9
Q
9. Arrange the following structures in the order that urine passes through them: (1) ureter; (2) urethra (3) urinary bladder; (4) kidney Select one: a. 4, 3, 1, 2 b. 4, 2, 3, 1 c. 4, 1, 3, 2 d. 1, 2, 3, 4 e. 1, 4, 3, 2
A
kindney –> ureter –> urinary bladder –> urethra
c. 4, 1, 3, 2
10
Q
10. Urea is a by-product of metabolism of Select one: a. fats b. carbohydrates c. salts d. glucose e. proteins
A
e. proteins
11
Q
11. Which of these is NOT a potential cause of anemia? Select one: a. damage to the spleen b. a drop in red blood cell count c. an iron-deficient diet d. lack of haemoglobin production e. blood loss
A
a. damage to the spleen
12
Q
12. The smallest blood vessels are called Select one: a. venules b. arterioles c. capillaries d. lacteal ducts e. veins
A
c. capillaries
13
Q
13. Arrange the following structures in the order that blood passes through them: (1) vena cava; (2) right ventricle (3) lungs; (4) right atrium; (5) pulmonary artery Select one: a. 4, 5, 3, 1, 2 b. 4, 5, 2, 3, 1 c. 1, 4, 2, 5, 3 d. 1, 2, 3, 5, 4 e. 4, 3, 1, 2, 5
A
vena cava –> right atrium –> right ventricle –> pulmonary article –> lungs
c) 1, 4, 2, 5, 3
14
Q
- A red blood cell travelling through the circulatory system could move through the following pathway:
Select one:
a. left ventricle, aorta, intestinal capillaries, hepatic portal vein, liver
b. pulmonary artery, alveolar capillaries, pulmonary vein, right atrium, aorta
c. left ventricle, right ventricle, aorta, capillaries, vena cava
d. pulmonary artery, right atrium, right ventricle, aorta, alveolar capillaries
e. left ventricle, left atrium, aorta, coronary artery, superior vena cava
A
a. left ventricle, aorta, intestinal capillaries, hepatic portal vein, liver
15
Q
15. Which of the following is NOT a function of the human circulatory system? Select one: a. produces ATP b. helps maintain temperature c. transports nutrients d. provides internal defense e. transports oxygen and carbon dioxide
A
a. produces ATP
