Systemic Physiology B Flashcards by Milagros Andrea Alemania Mateo

The proventriculus of birds is homologous to what of ruminants?
a. abomasum
b. reticulum
c. rumen
d. omasum

Abomasum

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Auerbach’s plexus can be found in the:
a. t. submucosa
b. lamina propria
c. t. serosa
d. t. muscularis

T. muscularis

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The parasympathetic innervation of the upper GIT is carried in the:
a.pudendal nerve
b.vagus nerve
c. sacral nerve
d. pelvic nerve

Vagus nerve

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This hormone is responsible for stimulating the migrating myoelectric complex (MMC).
a. motilin
b. secretin
c. enteroglucagon
d. peptide YY

Motilin

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What are slow waves?
a. Undulating action potentials that directly cause muscle contraction.
b. Spontaneous, slow, transient depolarization that are considered as true action potential.
c. Transient depolarization that occurs at the period of maximum depolarization.
d. None of the choices.

None of the choices

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What is segmentation?
a. A result of intermittent circular muscle contractions occurring at different sites on the segment.
b. A moving wave of luminal constriction preceded distally by an area of luminal distension.
c. A reflex wherein proximal to the bolus, there is distension and distal to the bolus there is constriction of muscles.
d. none of the choices

A result of intermittent circular muscle contractions occurring at different sites on the segment

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Carnivores have well-developed and larger _______muscle to allow powerful upward movement of jaw while herbivores have larger _______ muscle to allow side to side jaw motion.
a. masseter; temporalis
b. temporalis; masseter
c. zygomaticus; buccinator
d. buccinator ; zygomaticus

Temporalis; Masseter

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Which of the following is an incorrect pair of cells and their secretion?
a. parietal cells – HCl
b. ECL cells - histamine
c. chief cells – intrinsic factor
d. mucous neck cells – secrete mucus

Chief cells – intrinsic factor

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Hydrogen ions are secreted from the parietal cells of the stomach by:
a. passive diffusion
b. hydrogen-potassium exchange pump
c. hydrogen-chloride symport
d. integral part of sodium pump

hydrogen-potassium exchange pump

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What is the most essential agent for stimulation of secretion of HCl by the parietal cells?
a. gastrin
b. acetylcholine
c. cholecystokinin
d. histamine

Histamine

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Which among of the following stimulate the release of HCL:
a. gastrin and acetylcholine
b. pepsin and histamine
c. pepsin and gastrin
d. somatostatin and gastrin

Gastrin and acetylcholine

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Which of the following is the final site of enzymatic digestion and absorption of carbohydrates?
a. large intestine
b. small intestine
c. stomach
d. mouth

Small intestine

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The form by which fats are extruded into intercellular spaces and into the central lacteal of the intestinal villus.
a. chylomicrons
b. chyle
c. micelles
d. chyme

Chylomicrons

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It is the hormone that stimulates gall bladder contraction and pancreatic enzyme secretion.
a. GIP
b. secretin
c. cholecystokinin
d. motilin

Cholecystokinin

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This digestive secretion does not contain a digestive enzyme:
a. bile
b. gastric secretion
c. pancreatic juice
d. salivary secretion

Bile

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It has a distinctive “honeycomb” appearance and helps bring
boluses back up to the mouth for rechewing.
a. rumen
b. omasum
c. abomasum
d. reticulum

Reticulum

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The VFA that is converted to ketone body during absorption is _____, while the gluconeogenic VFA is_____.
a. acetic acid; propionic acid
b. butyric acid; propionic acid
c. lactic acid; butyric acid
d. propionic acid; lactic acid

Butyric acid; propionic acid

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Microbial synthesis of all B-vitamins is possible in ruminants, provided that _____ is adequate for Vit. B 12 cyanocobalamin) synthesis
a. iron ‘
b. flavoproteins
c. titanium
d. cobalt

Cobalt

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Which of the following does not cause frothy bloat?
a. Foaming agents such as soluble leaf proteins, saponins,
and hemicelluloses.
b. Reduced saliva production in the presence of succulent
forages.
c. Physical obstruction of eructation due to foreign body.
d. Grazing on legume or legume dominant pastures.

Physical obstruction of eructation due to foreign body

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ATP binds with which of the following ions to exert its biological function?
a. magnesium
b. calcium
c. sodium
d. cobalt

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Magnesium

The chemical reaction involved in turning NAD into NADH is called:
a. reduction
b. oxidation
c. hydrolysis
d. deamination

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Reduction

What happens immediately after glycolysis?
a. Pyruvate directly enters the Krebs cycle.
b. Pyruvate enters the nucleus and facilitates protein metabolism.
c. In the cytosol, pyruvate is immediately converted into
acetyl co-A
d. Pyruvate is transported into mitochondria and is converted to acetyl co-A

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Pyruvate is transported into mitochondria and is converted to acetyl co-A

Which vitamin is a co-enzyme of pyruvate dehydrogenase complex, the one responsible for converting pyruvic acid into acetyl coA?
a. vitamin K
b. vitamin C
c. vitamin B1
d. vitamin A

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Vitamin B1

It is a product of beta oxidation of fatty acids. This product can enter the Krebs cycle for energy production.
a. acetyl coA
b. stearic acid
c. acetone
d. alphaketone acids

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Acetyl coA

Which of the following is true about lipoproteins? a. HDL is the biggest and densest among the lipoproteins. b. Chylomicrons transport FAs out of the liver into the adipose for storage. c. VLDL carries cholesterol away from peripheral tissue to the liver. d. HDL has higher percentage of proteins and smaller amount of lipids.

HDL has higher percentage of proteins and smaller amount of lipids.

Which of the following metabolites can cause poisoning if not removed from the body? a. ammonia b. urea c. albumin d. creatine

Ammonia

This type of heat exchange involves the transfer of heat by electromagnetic waves. a. conduction b. convection c. radiation d. concoction

Radiation

Which is not a temperature-decreasing mechanism? a. vasodilation b. sweating c. panting d. none of the choices

None of the choices

What involves the oxidation of fat in brown adipose to increase heat production? a. nonshivering thermogenesis b. shivering thermogenesis c. gular fluttering d. hibernation

Nonshivering thermogenesis

Which of the following does not accurately describe renal pelvis? a. It conveys the urine from kidneys into the ureters. b. It acts like a funnel. c. The renal pelvis is dilated proximal part of the ureter in the kidney. d. Porcine and bovine species have prominent renal pelvis.

Porcine and bovine species have prominent renal pelvis

Specialized cells of the juxtaglomerular apparatus that monitor NaCl in the tubular fluid are called: a. mesangial cells b. juxtaglomerular cells c. macula densa d. dendritic cells

Macula densa

Most of the tubular reabsorption in the nephron happens in what segment? a. loop of Henle b. PCT c. DCT d. glomerulus

PCT

Glucose, vitamins, and amino acids are reabsorbed in the apical surface of renal tubules via what mechanism? a. Na-cotransport b. facilitated diffusion c. osmosis d. adsorption

Na-cotransport

The capillary bed supplying the loop of Henle in the medulla is termed as _______. This forms long straight loops that run parallel to the loops of Henle of the juxtamedullary nephron. a. vasa recta b. peritubular capillary c. arcuate artery d. interlobular veins

Vasa recta

Which of the following pressure favors filtration? a. glomerular pressure b. bowman’s capsule pressure c. colloid osmotic pressure d. all of the choices

Glomerular pressure

The stage of urine formation where in substances are transported from the peritubular capillaries into the interstitial fluid and then into tubular lumen. a. tubular secretion b. tubular reabsorption c. glomerular filtration d. countercurrent mechanism

Tubular secretion

When body fluids become dilute, what will happen? a. There will be increased secretion of ADH to facilitate concentration of body fluids. b. There will be inhibition of ADH secretion to facilitate water excretion. c. There will be decreased ADH secretion to facilitate water conservation. d. None of the choices.

There will be inhibition of ADH secretion to facilitate water excretion.

Statement 1: The descending limb is permeable to solutes but not to water. Statement 2: The tubular fluid in the descending limb of the loop of Henle is hyperosmotic a. Both statements are true b. Both statements are false c. Statement 1: true, Statement 2: false d. Statement 1: false, Statement 2: true

Statement 1: false, Statement 2: true

What part of the nephron does countercurrent mechanism occur? a. collecting duct b. PCT c. DCT d. loop of Henle

Loop of Henle

In ______, there is repetitive reabsorption of NaCl by the thick ascending loop of Henle, along with continual inflow of new NaCl from PCT. a. countercurrent multiplier b. countercurrent exchanger c. countercurrent maximizer d. juxtamedullary mechanism

Countercurrent multiplier

What directly triggers renin release? a. high blood pressure b. low blood pressure c. high NaCl in ECF d. low NaCl in ECF

Low blood pressure

Which of the following is NOT directly involved in correcting hypotension through the renin-angiotensin-aldosterone system? a. renin b. angiotensin I c. angiotensin II d. aldosterone

Angiotensin I

It is the fluid found in body cavities such as intraocular, cerebrospinal, synovial, urine, bile, fluids of digestive tract, and peritoneal pericardial fluid. a. intracellular fluid b. transcellular fluid c. interstitial fluid d. intravascular fluid

Transcellular fluid

The correct formula for indirectly determining the ICF volume: a. TBW – ECF = ICF b. ECF – TBW = ICF c. ISF + IVF = ICF d. TCF – ISF = ICF

TBW – ECF = ICF

Normally, the first defense against changes in blood pH is the blood buffers. However, the ultimate adjustment is accomplished by the: a. lungs and kidneys b. brain and heart c. lungs and liver d. liver and kidneys

Lungs and kidneys

This protein buffer system operates mostly within cells. It is an important blood buffer because the residue histidine has a pKa close to that of blood pH. a. bilirubin b. hyocin c. albumin d. hemoglobin

Hemoglobin

When there is respiratory acidosis; a. the CO2 in the body increases and it is compensated by hyperventilation. b. the CO2 in the body increases and it is compensated by renal excretion of H+ ions. c. there is decreased H+ in the body and it is compensated by renal excretion of H+ ions. d. there is increased H+ in the body and it is compensated by hypoventilation.

The CO2 in the body increases and it is compensated by renal excretion of H+ ions.

When there is metabolic alkalosis; a. there is a rise in HCO3 and the body compensates through hyperventilation b. there is a rise in HCO3 and the body compensates through hypoventilation c. there is a drop in HCO3 and the body compensates through hyperventilation d. there is a drop in HCO3 and the body compensates through hypoventilation

There is a rise in HCO3 and the body compensates through hypoventilation

Which is true about metabolic acidosis? a. It is a primary CO2 excess. b. It is a primary HCO3 deficit. c. Caused by gastric vomiting. d. none of the choices.

It is a primary HCO3 deficit

Systemic Physiology B Flashcards

(49 cards)