Of the following highest concentration of calcium is seen in (A) Blood (B) CSF (C) Muscle (D) Nerve

Of the following highest concentration of calcium is seen in (A) Blood (B) CSF (C) Muscle (D) Nerve
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All the following statements regarding calcium are correct except (A) It diffuses as a divalent cation (B) It freely diffuses across the endoplasmic reticulum of muscle cells (C) It can exist in the blood as ionic form and also protein bound (D) It is found in high concentration in bones

Description : All the following statements regarding calcium are correct except (A) It diffuses as a divalent cation (B) It freely diffuses across the endoplasmic reticulum of muscle cells (C) It can exist in the blood as ionic form and also protein bound (D) It is found in high concentration in bones

Last Answer : Answer : B

An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice

Description : An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice

Last Answer : Answer : C

The following have a lower concentration in the cerebrospinal fluid (CSF) than plasma: a. glucose b. sodium c. potassium d. magnesium

Description : The following have a lower concentration in the cerebrospinal fluid (CSF) than plasma: a. glucose b. sodium c. potassium d. magnesium

Last Answer : magnesium

A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium and decrease in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous

Description : A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium ... in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous

Last Answer : Answer : C

Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid

Description : Deficiency of urea cycle enzymes results into accumulation of citrulline argininosuccinate arginine in the liver resulting in increasing concentration of …….. in the blood. (A) Calcium (B) Sodium (C) Ammonia (D) Lipid

Last Answer : Answer : C

In the mammalian body, this element plays many important roles. Try to identify this element with the fewest number of clues. This element is required to insure the integrity and permeability of cell membranes, to regulate nerve and muscle excitability, to help maintain normal muscular contraction, and to assure cardiac rhythmicity. It also plays a essential role in several of the enzymatic steps involved in blood coagulation and is the most important element of bone salt. Name this element.

Description : In the mammalian body, this element plays many important roles. Try to identify this element with the fewest number of clues. This element is required to insure the integrity and permeability of ... involved in blood coagulation and is the most important element of bone salt. Name this element.

Last Answer : ANSWER: Calcium 

Which out of the following antibiotics penetrates blood-CSF barrier the best (a) Erythromycin (b) Gentamicin (c) Tetracycline (d) Chloramphenicol

Description : Which out of the following antibiotics penetrates blood-CSF barrier the best (a) Erythromycin (b) Gentamicin (c) Tetracycline (d) Chloramphenicol

Last Answer : Ans: D

The nurse assesses the dressing of a patient with a basal skull fracture and sees the halo sign - a blood stain surrounded by a yellowish stain. The nurse knows that this sign a) is highly suggestive of a cerebrospinal fluid (CSF) leak. The halo sign - a blood stain surrounded by a yellowish stain is highly suggestive of a cerebrospinal fluid (CSF) leak.

Description : The nurse assesses the dressing of a patient with a basal skull fracture and sees the halo sign - a blood stain surrounded by a yellowish stain. The nurse knows that this sign a) is highly ... following a basal skull fracture. The halo sign is highly suggestive of a cerebrospinal fluid (CSF) leak.

Last Answer : a) is highly suggestive of a cerebrospinal fluid (CSF) leak. The halo sign - a blood stain surrounded by a yellowish stain is highly suggestive of a cerebrospinal fluid (CSF) leak.

Choose the correct statement about rifampin: A. It is the most active drug on slow growing tubercle bacilli B. Its antitubercular efficacy is lower than that of isoniazid C. It is active against many atypical mycobacteria D. It does not effectively cross blood-CSF barrier

Description : Choose the correct statement about rifampin: A. It is the most active drug on slow growing tubercle bacilli B. Its antitubercular efficacy is lower than that of isoniazid C. It is active against many atypical mycobacteria D. It does not effectively cross blood-CSF barrier

Last Answer : C. It is active against many atypical mycobacteria

The following antibiotic penetrates blood-CSF barrier the best: A. Erythromycin B. Gentamicin C. Tetracycline D. Chloramphenicol

Description : The following antibiotic penetrates blood-CSF barrier the best: A. Erythromycin B. Gentamicin C. Tetracycline D. Chloramphenicol

Last Answer : D. Chloramphenicol

he dominant pharmacokinetic feature of penicillin G is: A. It is equally distributed extra- and intracellularly B. It is rapidly secreted by proximal renal tubules C. It has low oral bioavailability due to high first pass metabolism in liver D. It does not cross blood–CSF barrier even when meninges are inflamed

Description : he dominant pharmacokinetic feature of penicillin G is: A. It is equally distributed extra- and intracellularly B. It is rapidly secreted by proximal renal tubules C. It has low oral bioavailability ... pass metabolism in liver D. It does not cross blood-CSF barrier even when meninges are inflamed

Last Answer : B. It is rapidly secreted by proximal renal tubules

One of the symptoms of low serum potassium concentration includes (A) Muscle weakness (B) Confusion (C) Numbness (D) Tingling of extremities WATER AND ELECTROLYTE BALANCE 283

Description : One of the symptoms of low serum potassium concentration includes (A) Muscle weakness (B) Confusion (C) Numbness (D) Tingling of extremities WATER AND ELECTROLYTE BALANCE 283

Last Answer : Answer : A

Compared to the resting state, vigorously contracting muscle shows (A) An increased conversion of pyruvate to lactate (B) Decreased oxidation of pyruvate of CO2 and water (C) A decreased NADH/NAD+ ratio (D) Decreased concentration of AMP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 21

Description : Compared to the resting state, vigorously contracting muscle shows (A) An increased conversion of pyruvate to lactate (B) Decreased oxidation of pyruvate of CO2 and water (C) A decreased NADH/NAD+ ratio (D) Decreased concentration of AMP CARBOHYDRATES AND CARBOHYDRATE METABOLISM 21

Last Answer : A

After operative removal of the parathyroid glands resulting into hypoparathyroidism the concentration of the serum calcium may drop below (A) 11 mg (B) 10 mg (C) 9 mg (D) 7 mg

Description : After operative removal of the parathyroid glands resulting into hypoparathyroidism the concentration of the serum calcium may drop below (A) 11 mg (B) 10 mg (C) 9 mg (D) 7 mg

Last Answer : Answer : D

The normal concentration of calcium in C.S.F is (A) 1.5–2.5 mg/100 ml (B) 2.5–4 mg/100 ml (C) 4.5–5 mg/100 ml (D) 9–10 mg/100 ml

Description : The normal concentration of calcium in C.S.F is (A) 1.5–2.5 mg/100 ml (B) 2.5–4 mg/100 ml (C) 4.5–5 mg/100 ml (D) 9–10 mg/100 ml

Last Answer : Answer : C

Absorption of calcium decreases if there is high concentration in the diet of (A) Copper (B) Sodium (C) Magnesium (D) Cadmium

Description : Absorption of calcium decreases if there is high concentration in the diet of (A) Copper (B) Sodium (C) Magnesium (D) Cadmium

Last Answer : Answer : C

The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) is decreased in (A) Rickets (B) Hypoparathyroidism (C) Hyperparathyroidism (D) Renal failure

Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) is decreased in (A) Rickets (B) Hypoparathyroidism (C) Hyperparathyroidism (D) Renal failure

Last Answer : Answer : A

The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in children is about (A) 30 (B) 40 (C) 50 (D) 60

Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in children is about (A) 30 (B) 40 (C) 50 (D) 60

Last Answer : Answer : C

The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in adults is about (A) 30 (B) 40 (C) 50 (D) 60

Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in adults is about (A) 30 (B) 40 (C) 50 (D) 60

Last Answer : Answer : A

A 55 year-old female complaining of vague tiredness is found to have a serum corrected calcium concentration of 2.9 mmol/l. Examination was unremarkable. Which of the following results confirms the suspected diagnosis of primary hyperparathyroidism? 1) High normal 1,25-dihydroxyvitamin D concentration 2) High normal 24 hour urinary calcium concentration 3) High normal plasma parathyroid hormone concentration 4) Low normal plasma phosphate concentration 5) Low normal serum 25-hydroxyvitamin D concentration

Description : A 55 year-old female complaining of vague tiredness is found to have a serum corrected calcium concentration of 2.9 mmol/l. Examination was unremarkable. Which of the following results ... 4) Low normal plasma phosphate concentration 5) Low normal serum 25-hydroxyvitamin D concentration

Last Answer : Answers-3 Bit too easy really. A high or even normal PTH concentration in the presence of hypercalcaemia would support the diagnosis of hyperparathyroidism. A high urinary Calcium concentration may ... but neither confirm the diagnosis. Elevated 1,25 VitD suggests a diagnosis of hypervitaminosis D.

Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is caused by deposits of calcium, fat, chalestero

Description : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is caused by deposits of calcium, fat, chalestero

Last Answer : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is ... D. If both Assertion & Reason are false.

Lack of which hormone increases nerve and muscle instability and causes muscle spasm ?

Last Answer : Lack of hormones increases nerve and muscle instability and muscle cramps start.

Diploid cell in human, where cell division does not occur :- (a) Heart cell (b) Muscle cell ( c ) Nerve cell

Description : Diploid cell in human, where cell division does not occur :- (a) Heart cell (b) Muscle cell ( c ) Nerve cell

Last Answer : Diploid cell in human, where cell division does not occur :- (a) Heart cell (b) Muscle cell ( c ) Nerve cell A. ... b and c C. a and c D. a, b and c

Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Description : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : The threshold stimulus is the minimum stimulus r

Last Answer : Assertion : The contraction and relaxation of muscle fiber are controlled by nerve impulses. Reason : ... D. If both Assertion and Reason are false.

The largest cell in the human body is : (1) Nerve cell (2) Muscle cell (3) Liver cell (4) Kidney cell

Description : The largest cell in the human body is : (1) Nerve cell (2) Muscle cell (3) Liver cell (4) Kidney cell

Last Answer : (1) Nerve cell Explanation: The ovum is the largest cell in the human body, typically visible to the naked eye without the aid of a microscope or other magnification device. The smallest is the male ... isn't a cell, but a peripheral extension. The actual neuron is tiny compared to the egg cell.

"Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Description : "Sodium Pump" operates in - (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Last Answer : (3) Nerve impulse Explanation: Na+/K+-ATPase (also known as sodium-potassium pump) is an enzyme located in the plasma them brane of virtually every human cell and is common to all cellular ... are voltagegated, which means that they can open and close depending on the voltage across the membrane.

Stretch reflex: a. is a monosynaptic reflex with a response time of 1 msec b. originates in the muscle spindle which sends off impulses in type Ia nerve fibres c. is intensified by impulses in the gamma efferent fibres d. all above

Description : Stretch reflex: a. is a monosynaptic reflex with a response time of 1 msec b. originates in the muscle spindle which sends off impulses in type Ia nerve fibres c. is intensified by impulses in the gamma efferent fibres d. all above

Last Answer : all above

In most nerve and muscle cell, the membrane potentical is a. 60 mv b. 70 mv c. 85 mv d. 100 mv

Description : In most nerve and muscle cell, the membrane potentical is a. 60 mv b. 70 mv c. 85 mv d. 100 mv

Last Answer : 85 mv

Electrolytes are especially essential to which cells. a. nerve b. muscle c. both d. none of them

Description : Electrolytes are especially essential to which cells. a. nerve b. muscle c. both d. none of them

Last Answer : muscle

Bundle of His is a network of (a) muscle fibres distributed throughout the heart walls (b) muscle fibres found only in the ventricle wall (c) nerve fibres distributed in ventricles (d) nerve fibres found throughout the heart.

Description : Bundle of His is a network of (a) muscle fibres distributed throughout the heart walls (b) muscle fibres found only in the ventricle wall (c) nerve fibres distributed in ventricles (d) nerve fibres found throughout the heart.

Last Answer : (b) muscle fibres found only in the ventricle wall

Which cells do not form layer and remains structurally separate? (a) Epithelial cells (b) Muscle cells (c) Nerve cells (d) Gland cells

Description : Which cells do not form layer and remains structurally separate? (a) Epithelial cells (b) Muscle cells (c) Nerve cells (d) Gland cells

Last Answer : (c) Nerve cells

Which one of the following contains the largest quantity of extracellular material? (a) Striated muscle (b) Areolar tissue (c) Stratified epithelium (d) Myelinated nerve fibres

Description : Which one of the following contains the largest quantity of extracellular material? (a) Striated muscle (b) Areolar tissue (c) Stratified epithelium (d) Myelinated nerve fibres

Last Answer : (b) Areolar tissue

Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting nerve damage. The absence of muscle tone suggesting nerve damage is referred to as paralysis. c) involuntary twitch of muscle fibers. Involuntary twitch of muscle fibers is referred to as fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Description : Paresthesia is the term used to refer to a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias. b) absence of muscle movement suggesting ... fasciculation. d) absence of muscle tone. A muscle which holds no tone is termed flaccid.

Last Answer : a) abnormal sensations. Abnormal sensations, such as burning, tingling, and numbness, are referred to as paresthesias.

which muscle is not supplied by mandibular nerve 1) masseter 2) buccinator

Description : which muscle is not supplied by mandibular nerve 1) masseter 2) buccinator

Last Answer : 2) buccinator

What is not correct about Long Buccal Nerve:** A. Passes through two heads of pterygoids muscles B. Supplies mucosa over lower and upper molars C. Supplies the buccinator muscle D. Supplies skin over buccinator

Description : What is not correct about Long Buccal Nerve:** A. Passes through two heads of pterygoids muscles B. Supplies mucosa over lower and upper molars C. Supplies the buccinator muscle D. Supplies skin over buccinator

Last Answer : C. Supplies the buccinator muscle

Which one of the following types of pain is most likely to be associated with craniomandibular disorders: A. Exacerbated pain by hot or cold food B. Keeps patient awake at night C. Associated with muscle tenderness D. Associated with trigger spots related to the trigeminal nerve

Description : Which one of the following types of pain is most likely to be associated with craniomandibular disorders: A. Exacerbated pain by hot or cold food B. Keeps patient awake at night C. Associated with muscle tenderness D. Associated with trigger spots related to the trigeminal nerve

Last Answer : C. Associated with muscle tenderness

Dantrolene sodium reduces skeletal muscle tone by: A. Reducing acetylcholine release from motor nerve endings B. Suppressing spinal polysynaptic reflexes C. Inhibiting the generation of muscle action potential D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

Description : Dantrolene sodium reduces skeletal muscle tone by: A. Reducing acetylcholine release from motor nerve endings B. Suppressing spinal polysynaptic reflexes C. Inhibiting the generation of muscle action potential D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

Last Answer : D. Reducing Ca2+ release from sarcoplasmic reticulum in the muscle fibre

Depolarizing neuromuscular blockers differ from competitive blockers in the following attributes except: A. They induce contraction of isolated frog rectus abdominis muscle B. Ether anaesthesia intensifies block produced by them C. Tetanic nerve stimulation during partial depolarizing block produces well sustained contraction D. Neostigmine does not reverse block produced by them

Description : Depolarizing neuromuscular blockers differ from competitive blockers in the following attributes except: A. They induce contraction of isolated frog rectus abdominis muscle B. Ether anaesthesia ... produces well sustained contraction D. Neostigmine does not reverse block produced by them

Last Answer : B. Ether anaesthesia intensifies block produced by them

The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Description : The site of action of d-tubocurarine is: A. Spinal internuncial neurone B. Motor nerve ending C. Muscle end-plate D. Sodium channels in the muscle fibre

Last Answer : C. Muscle end-plate

The mechanism by which neostigmine improves contraction of myasthenic muscle involves: A. Repetitive binding of the acetylcholine molecules to the same receptors at the muscle endplate B. Diffusion of acetylcholine released from motor nerve endings to a wider area activating neighbouring receptors C. Activation of motor end-plate receptors by neostigmine molecules themselves D. All of the above

Description : The mechanism by which neostigmine improves contraction of myasthenic muscle involves: A. Repetitive binding of the acetylcholine molecules to the same receptors at the muscle endplate B. Diffusion of ... Activation of motor end-plate receptors by neostigmine molecules themselves D. All of the above

Last Answer : D. All of the above

The mechanism by which neostigmine improves contraction of myasthenic muscle involves: A. Repetitive binding of the acetylcholine molecules to the same receptors at the muscle endplate B. Diffusion of acetylcholine released from motor nerve endings to a wider area activating neighbouring receptors C. Activation of motor end-plate receptors by neostigmine molecules themselves D. All of the above

Description : The mechanism by which neostigmine improves contraction of myasthenic muscle involves: A. Repetitive binding of the acetylcholine molecules to the same receptors at the muscle endplate B. Diffusion of ... Activation of motor end-plate receptors by neostigmine molecules themselves D. All of the above

Last Answer : D. All of the above

“Sodium Pump” operates in (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Description : “Sodium Pump” operates in (1) Muscle contraction (2) Heart beat (3) Nerve impulse (4) None of the above

Last Answer : Nerve impulse

The largest cell in the human body is : (1) Nerve cell (2) Muscle cell (3) Liver cell (4) Kidney cell

Description : The largest cell in the human body is : (1) Nerve cell (2) Muscle cell (3) Liver cell (4) Kidney cell

Last Answer : Nerve cell

Hyperventilation: a. decreases cerebral blood flow b. increases ionized calcium concentration in the serum c. causes hypocapnia d. causes metabolic alkalosis

Description : Hyperventilation: a. decreases cerebral blood flow b. increases ionized calcium concentration in the serum c. causes hypocapnia d. causes metabolic alkalosis

Last Answer : causes hypocapnia

Does anyone know about the GM-CSF protein?

Description : Does anyone know about the GM-CSF protein?

Last Answer : Does anyone know about the GM-CSF protein? Yes, it is an internal hormonal stimulant for white blood cells. Is this something you can increase in your body through food? No I've read that having ... that even comes from food No so thought I'd ask you brain boxes here Wikipedia is your friend

Why does CSF appears to be dark in T1 and white in T2?

Description : Why does CSF appears to be dark in T1 and white in T2?

Last Answer : I think that it is because the two types of MRI detirmine to color differently. T1 determines color based on spin-lattice relaxation time, while T2 determine color based on spin-spin relation time. Both ... dark. Since cerebrospinal fluid is mostly water, it shows up dark in T1 and light in T2.

`XeF_(6)` on reaction with CsF gives:

Description : `XeF_(6)` on reaction with CsF gives:

Last Answer : `XeF_(6)` on reaction with CsF gives: A. `Cs[XeF_(7)]` B. `[XeF_(4)][CsF_(3)]` C. `XeF_(8)` D. `[XeF_(5)] [CsF_(2)]`

What is the name for CsF?

Description : What is the name for CsF?

Last Answer : The formula name for the element CsF is Caesium fluoride.

Would not be found in the analysis of cerebrospinal (CSF) fluid?

Description : Would not be found in the analysis of cerebrospinal (CSF) fluid?

Last Answer : wwe