SYSTEMIC PHYSIOLOGY Flashcards
Degluitition and inhalation cannot occur at the same time because of this structure, which bends over the larynx during the act of swallowing thus preventing the aspiration of food material into the lungs:
a. glottis
b. epiglottis
c. syrinx
d. cricoid cartilage
a. glottis
The physiologic dead space is:
a. The total volume of the trachea, bronchi and nonrespiratory bronchioles.
b. The total volume of the airways and alveoli.
c. The volume of inhaled gas that is not involved in gas exchange.
d. The total volume of inhaled gas used for ventilation.
c. The volume of inhaled gas that is not involved in gas exchange.
99% of the dissolved oxygen in the blood is bound to this substance:
a. myoglobin
b. hemoglobin
c. fibrinogen
d. albumin
b. hemoglobin
Hemoglobin is said to be “fully saturated” when:
a. Four oxygen molecules are bound to it.
b. Four ferrous iron molecules are bound to it.
c. Two oxygen molecules are bound to it.
d. It is bright red in color.
a. Four oxygen molecules are bound to it.
Region/regions of the brain where the respiratory control centers
are located:
a. medulla
b. pons
c. cerebellum
d. a and b
d. a and b
These structures comprise the renal corpuscle:
a. Afferent and efferent arterioles.
b. Glomerulus and the afferent arteriole.
c. Glomerulus and the Bowman’s capsule.
d. Glomerulus and peritubular capillaries.
c. Glomerulus and the Bowman’s capsule.
This component of the blood is normally absent in the glomerular filtrate:
a. erythrocytes
b. glucose
c. sodium
d. none of the above
a. Erythrocytes
The only unpaired air sac in the chicken:
a. clavicular
b. cranial thoracic
c. abdominal
d. caudal thoracic
a. clavicular
This substance acts as a protective barrier of the stomach against the effects of HCl:
a. rennin
b. mucin
c. chyme
d. gastrin
b. mucin
Carbohydrate fermentation leads to the formation of:
a. methane
b. carbon dioxide
c. nitrogen
d. hydrogen
a. methane
The reticular groove in the suckling young ruminant transports milk directly to the:
a. rumen
b. reticulum
c. omasum
d. abomasum
d. abomasum
This is not a component of the pancreatic juice:
a. trypsinogen
b. amylase
c. pepsinogen
d. carboxypolypeptidase
c. pepsinogen
The following are end products of fermentation EXCEPT:
a. acetic acid
b. propionic acid
c. butyric acid
d. picric acid
d. picric acid
Gastric HCl:
a. Kills most bacteria that are ingested together with food.
b. Is secreted by the parietal cells in the stomach.
c. Activates pepsinogen.
d. All of the above.
d. All of the above.
Bile is secreted by the:
a. intestinal mucosa
b. liver
c. kidney
d. gall bladder
b. liver
