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PHYSIO > PHYSIO B PAST EXAM MCQ > Flashcards

PHYSIO B PAST EXAM MCQ Flashcards

1
Q

The term renal auto regulation refers in part to the fact that?

A

Renal blood flow is relatively constant over a wide range of systemic arterial pressures.

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2
Q

If the end diastolic volume is 135 ml, the end systolic volume is 65 ml, and the avg HR is 72 bpm:

A

The cardiac output is about 5 L/min.

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3
Q

Hemodynamics:?

A

During physical activity both the amount of blood flow and the relative distribution of the flow in the different parts of the body change.

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4
Q

Under normal conditions, saliva contains high concentration of which of the following ions?

A

Potassium

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5
Q

In relation to the autonomic control of the heart?

A

Stimulation of the left stellate ganglion accelerates heart rate.

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6
Q

Beside water, which of the following substances have the highest concentration in bile?

A

Bile salts.

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7
Q

A hyperkalemic patient is given an infusion of glucose and insulin. The actions of insulting include?

A

Enhancing potassium entry into cells.

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8
Q

What is the most common type of motility associated with the descending colon?

A

Mass movements.

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9
Q

Which of the following is the stimulus for increases secretion of atrial natriuretic peptide’

A

Decrease venous blood volume and atrial pressure.

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10
Q

According to liver body supply, which of the following statements is correct?

A

Portal vein delivers 75% of blood supply and hepatic arteries in the remaining 25%.

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11
Q

The brain bridge reflex:

A

Effects opposite to those of the carotid sinus reflex.

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12
Q

The liver is responsible for which of the following metabolic functions?

A

All responded are correct: oxidation of fatty acids, deamination of AAs, conversion of galactose and fructose to glucose.

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13
Q

Sodium is actively reabsorbed from the renal tubule in which of the following nephron segment?

A

Proximal tubule.

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14
Q

Absorption of glucose by enterocytes?

A

Relies on facilitated transport at the apical membrane.

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15
Q

Great vessels:

A

The elasticity of the arteries is the reason for the pulsatile flow in the arteries.

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16
Q

Which of the following steps of the hemoglobin degradation process takes place in the liver?

A

Bilirubin conjugation with glucoronic acid or sulfate

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17
Q

During acute hypoglycemia, insulin secretion is inhibited by low glucose and?

A

GLP-1 signaling through GLP-1 receptors

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18
Q

What signal causes the heart to secrete atrial natriuretic acid?

A

Increased plasmatic sodium levels

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19
Q

The amount of water is excreted in stool is about?

A

100ml

20
Q

Which of the following plasma proteins are not synthesized in the liver?

A

Gamma Globulin

21
Q

ACTH deficiency would greatly diminish:?

A

The secretion of cortisol

22
Q

Which percentage of bile salts gets reabsorbed into the blood from the intestine with the enterohepatic circulation?

A

80%

23
Q

Which of this following elements is a characteristic of an obstructive jaundice?

A

Plasmatic increase of conjugated Bilirubin

24
Q

Myogenic reflex?

A

This reflex is important in the auto regulation of blood flow and small arteries and arterioles.

25
Q

Select the false statement. In relation to the properties of the vascular system:?

A

An increase in the longitudinal pressure gradient along a peripheral vascular stimulates nitric oxide release from the smallest that muscle and causes vasodilation.

26
Q

Vitamin B12 is absorbed mainly in there?

A

Ileum

27
Q

In physiological conditions, which of the following substances is reabsorbed to the highest proportion at the level of that tubular system?

A

Glucose

28
Q

In relation to control the circulation?

A

The function of the myogenic mechanism is to keep constant blood pressure and peripheral circulatory districts during postural changes.

29
Q

The gastric juice has all the following characteristic except?

A

Antibacterial action is produced by mucous content.

30
Q

EC-Coupling?

A

In the heart ryr and dhp have link

31
Q

Regulation of blood flow ?

A

Short term regulation of blood flow occurs via vasodilation and constriction.

32
Q

Most of the water and electrolytes absorbed across the walls of the GI tract is absorbed in this region:?

A

Large intestine.

33
Q

Renin is releases by the kidney in response to?

A

Decreased blood pressure

34
Q

Gastric secretion is inhibited by all of the following except:?

A

Presence of excess protein digestive products in the stomach.

35
Q

Urea has a higher concentration in the fluid that leaves the proximal tube than in the blood plasma bc:?

A

Urea diffuses back into the proximal tubule bc of high urea concentration in the renal medulla.

36
Q

The fick principle:?

A

Derives from the law of conservation of energy.

37
Q

Which of the following stimuli regulates bile secretion from the liver?

A

Cholecystokinin secretion

38
Q

The appearance of large amounts of ammonium ion in the urine is characteristic of the renal response to?

A

Alkalosis.

39
Q

After ideal resection, a patient will have excess fat in feces for the following reason?

A

Miscelles do not form in the intestinal lumen.

40
Q

Slow electrical waves are associated with?

A

The enteric nervous system.

41
Q

Which signal causes the heart to release the peptide niatr..?

A

Increased blood pressure.

42
Q

Staircase effect?

A

Entropy increase due to accumulation of Ca in the cell following adrenergic stimuli.

43
Q

According to fricks principle?

A

You can calculate VO2 if you have delta P and CO

44
Q

In case of CO2 at muscular level:…

A

Hypermia active

45
Q

Surfactant act…select false?

A

More on larger alveoli

46
Q

Hemoglobin?

A

High O2 affinity at high pH, low O2 affinity with 2,3 BPG

PHYSIO (4 decks)

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