On the statements below, please choose the correct answer, Surfactant which is r

Question

On the statements below, please choose the correct answer,

Surfactant which is released by the type I alveolar cells reduced the surface tension of the alveoli

The chest expands because the lungs inflate

Sympathetic stimulation induces bronchoconstriction

Alveolar ventilation = (tidal volume – dead space volume ) x respiratory rate

The primary mechanism to insure proper ventilation is the stimulation of the central chemoreceptors by H+

Histotoxic hypoxia can be cause by cyanide poisoning

a.)Statements 1 and 6 are TRUE

b.)Statements 3 and 4 are TRUE

c.)Statements 2 and 5 are TRUE

d.)Statements 4,5 and 6 are TRUE

e.)Statements 3,4 and 5 are TRUE

Based on the statements below, please choose the correct answer.

CCK is released in response to acid in the duodenum

The cephalic phase increases gastric secretions by decreasing vagal nerve input to the stomach

The intestinal phase increases gastric secretion by increasing the release of intestinal gastrin

During the gastric phase, the removal of distention will decreases vagal stimulation, thus decreases gastric secretions

Proteins trigger the release of intestinal gastrin that increases gastric secretions

The inhibitory effect of the intestinal phase of gastric secretion is stronger than the excitatory effect.

a.Statements 2 and 6 are TRUE

b.Statements 1,4 and 5 are TRUE

c.Statements 3,4,5, and 6 are TRUE

d.Statements 1 and 6 are TRUE

e.Statements 2,4, and 6 are TRUE

Based on the renal statements below, please choose the correct answer

GFR = Kf x Net filtration pressure

Changes in Kf are based on permeability and surface area changes

Permeability changes are caused by mesangial cells

Surface area changes are caused podocytes changing the size of their slit membranes

When there is a drop in GFR, the autoregulatory mechanism causes the afferent arterioles dilate to try to increase flow back to normal

The GFR autoregulatory mechanism will try to maintain a constant GFR even when you are dehydrated.

a.Statements 2,3 and 6 are TRUE

b.Statements 1,3,4 and 5 are TRUE

c.Statements 1,2,3 and 4 are TRUE

d.Statements 5 and 6 are TRUE

e.All are TRUE

Explanation / Answer

Question No.1

Answer is option a.)Statements 1 and 6 are TRUE.

Explanation:

Reduction in surface tension in aleovli is due to the surfactant released by the Type 1 alveolar cells.

Cynaide Poisoning causes Histotoxic Hypoxia.

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