Exam 4 quiz questions Flashcards
The majority of oxygen present within the blood is
a. bound to hemoglobin within the plasma
b. bound to hemoglobin in red blood cells
c. dissolved within the plasma
d. in the plasma as HCO3-.
b.
Release of Antidiuretic Hormone (ADH) is stimulated by an increase in blood osmolarity.
true or false
true
Which of the following physiological stimuli will reflexively decrease minute ventilation (VE)?
a. An increase in H+ concentration.
b. An increase in arterial PCO2.
c. An increase in arterial PO2.
d. All of these stimuli will decrease minute ventilation
c.
What is the primary mechanism of carbon dioxide transport in blood?
a. dissolved in the plasma
b. bound to hemoglobin
c. as bicarbonate dissolved in the plasma
d. dissolved in the red blood cells
c.
Which of the following increases oxygen unloading from hemoglobin? (The Bohr effect)?
a. Decreased temperature
b. Increased oxygen levels in the tissue
c. decreased blood pH
d. decreased metabolism
c.
The difference between what two pressures drives air into and out of the lungs
a. venous and atmospheric
b. intrapleural and intra-alveolar
c. atmospheric and intrapleural
d. atmospheric and intra-alveolar
d.
What is the term for the volume of air moved into the lungs every minute?
a. alveolar ventilation
b. tidal volume
c. minute ventilation
d. total lung capacity
c.
During what renal process are molecules selectively removed from the tubule lumen, and moved into the peritubular capillaries?
a. filtration
b. secretion
c. excretion
d. reabsorption
d.
Aldosterone release is directly stimulated by?
a. Renin
b. Angiotensin I
c. Angiotensin II
d. ADH
c.
What cells secrete pepsinogen into the lumen of the stomach?
a. Chief cells
b. Parietal cells
c. Beta cells
d. Pepsinogen is not secreted into the stomach
a.
What hormone stimulates the release of bicarbonate from the pancreas?
a. CCK
b. Gastrin
c. Secretin
d. Insulin
c.
Luminal stimuli for initiating most gastrointestinal reflexes include all of the following EXCEPT:
a. distension of the lumen
b. Bile
c. Acidity of chyme
d. Osmolarity of chyme
b.
In order to begin the process of fat digestion, the fat globules must be
a. emulsified by lipases.
b. emulsified by trypsin
c. emulsified by bile salts
d. emulsified by proteases
c. emulsified by bile salts
The long reflex pathway typically involves the ________ nervous system, which acts to promote an increase in gastrointestinal activity
a. parasympathetic
b. sympathetic
c. intrinsic
d. enteric
a. parasympathetic
