Mast cells secrete :-

Mast cells secrete :-
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Mast cells secrete :- A. Hippurin B. Myoglobin C. Histamine D. Hemoglobin
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Mast cells secrete (a) haemoglobin (b) hippurin (c) myoglobin (d) histamine

Description : Mast cells secrete (a) haemoglobin (b) hippurin (c) myoglobin (d) histamine

Last Answer : (d) histamine.

Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason . Allergens in the envi

Description : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause allergic reactions. Reason . Allergens in the envi

Last Answer : Assertion . Mast cells in human body release excessive amount of inflammatory chemicals which cause ... If both the assertion and reason are false

Assertion :- Mast cells are undiferntiated cells of connective tissue proper. Reason :- Mast cells modified to from other cells of connective tissue p

Description : Assertion :- Mast cells are undiferntiated cells of connective tissue proper. Reason :- Mast cells modified to from other cells of connective tissue p

Last Answer : Assertion :- Mast cells are undiferntiated cells of connective tissue proper. Reason :- Mast cells ... D. If both Assertion & Reason are false.

Mast cells occur in

Description : Mast cells occur in

Last Answer : Mast cells occur in A. Connective tissue B. Epithelial tissue C. Skeletal tissue D. Nervous tissue

Function of the mast cells.?

Description : Function of the mast cells.?

Last Answer : Mast cells and basophils produce the histamine, which antihistamines block. The cytoplasm of a mast cell is filled with granules containing histamine and heparin. Histamine, released after ... damaged tissues and enhance the inflammation process, also contain granules of histamine and haparin.

What are mast cells?

Description : What are mast cells?

Last Answer : .prevents the release of mast cell granules, thereby preventing release of histamine and the other chemicals contained in them. It acts as a preventive treatment if it is begun several weeks before the onset of the allergy season.

Histamine is synthesised in (A) Brain (B) Mast cells (C) Basophils (D) All of these

Description : Histamine is synthesised in (A) Brain (B) Mast cells (C) Basophils (D) All of these

Last Answer : Answer : D

IgE has a tendency to attach to (A) Basophils (B) Mast cells (C) Both (A) and (B) (D) None of these

Description : IgE has a tendency to attach to (A) Basophils (B) Mast cells (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Description : Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Last Answer : Ans: B

The symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) Inceased vascular permeability of bronchial tissue (d) Decreased calcium influx into the mast cell (e) Decreased prostaglandin production

Description : The symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cell (e) Decreased prostaglandin production

Last Answer : Ans: A

Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus

Description : Histamine (a) May be released from mast cells by a number of therapeutic agents (b) Causes sedation (c) Decreases the force of contraction of ventricular muscle (d) Can cause strong contractions of the gravid human uterus

Last Answer : Ans: D

Select the correct statement about salmeterol. (a) It is a long acting selective ß2 agonist bronchodilator (b) It is a bronchodilator with anti-inflammatory property (c) It is a ß blocker that can be safely given to asthmatics (d) It is an antihistaminic with mast cells stabilizing property

Description : Select the correct statement about salmeterol. (a) It is a long acting selective ß2 agonist bronchodilator (b) It is a bronchodilator with anti-inflammatory property (c) It is a ß blocker that can be safely given to asthmatics (d) It is an antihistaminic with mast cells stabilizing property

Last Answer : Ans: A

Which of the following is a prophylactic agent that appears to stabilize mast cells? (a) Aminophyline (b) Cromolyn (c) Epinephrine (d) Ipratropium (e) Metaproterenol

Description : Which of the following is a prophylactic agent that appears to stabilize mast cells? (a) Aminophyline (b) Cromolyn (c) Epinephrine (d) Ipratropium (e) Metaproterenol

Last Answer : Ans: B

The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) Increased vascular permeability of bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production

Description : The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production

Last Answer : Ans: A

A mast cell (or mastocyte) is a resident cells of several types of tissues and contains many granules rich in_______. a) Acetylcholine b) Nicotine c) Epinephrine d) Histamine e) Histadine

Description : A mast cell (or mastocyte) is a resident cells of several types of tissues and contains many granules rich in_______. a) Acetylcholine b) Nicotine c) Epinephrine d) Histamine e) Histadine

Last Answer : Ans: D

Methylxanthine drugs such as aminophylline cause which one of the following? (a) Vasoconstriction in many vascular beds (b) Decrease in the amount of cAMP in mast cells (c) Bronchodilation (d) Activation of the enzyme phosphodiesterase (e) Sedation

Description : Methylxanthine drugs such as aminophylline cause which one of the following? (a) Vasoconstriction in many vascular beds (b) Decrease in the amount of cAMP in mast cells (c) Bronchodilation (d) Activation of the enzyme phosphodiesterase (e) Sedation

Last Answer : Ans: C

What is the reaction-taking place when H2 receptor binds to mast cells and basophils ?

Description : What is the reaction-taking place when H2 receptor binds to mast cells and basophils ?

Last Answer : When H2 binds to mast cells and basophils it suppresses degranulation.

Asthma may be attributed to (a) inflammation of the trachea (b) accumulation of fluid in the lungs (c) bacterial infection of the lungs (d) allergic reaction of the mast cells in the lungs.

Description : Asthma may be attributed to (a) inflammation of the trachea (b) accumulation of fluid in the lungs (c) bacterial infection of the lungs (d) allergic reaction of the mast cells in the lungs.

Last Answer : (d) allergic reaction of the mast cells in the lungs.

In mammals, histamine is secreted by (a) lymphocytes (b) mast cells (c) fibroblasts (d) histiocytes.

Description : In mammals, histamine is secreted by (a) lymphocytes (b) mast cells (c) fibroblasts (d) histiocytes.

Last Answer : b) mast cells

Mast cells of connective tissue contain (a) vasopressin and relaxin (b) heparin and histamine (c) heparin and calcitonin (d) serotonin and melanin.

Description : Mast cells of connective tissue contain (a) vasopressin and relaxin (b) heparin and histamine (c) heparin and calcitonin (d) serotonin and melanin.

Last Answer : (b) heparin and histamine

An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.

Description : An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.

Last Answer : b. Accumulation of ige on the surfaces of mast cells and basophils.

________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins

Description : ________ bind to_________ on microbial invaders. a. Toll-like receptors; PAM Ps b. Mast cells; histamine c. Toll-like receptors; complement d. Macrophages; defensins

Last Answer : a. Toll-like receptors; PAM Ps

Which type of cells does an abscess contain: A. Mast cells B. Polymorphonuclear leukocytes C. Eosinophils D. Epithelial cells

Description : Which type of cells does an abscess contain: A. Mast cells B. Polymorphonuclear leukocytes C. Eosinophils D. Epithelial cells

Last Answer : B. Polymorphonuclear leukocytes

The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is: A. Aspirin B. Procaine C. Morphine D. Sulfadiazine

Description : The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is: A. Aspirin B. Procaine C. Morphine D. Sulfadiazine

Last Answer : C. Morphine

Montelukast produces the following action(s) in bronchial asthma patients: A. Bronchodilatation B. Suppression of bronchial hyperreactivity C. Stabilization of mast cells D. Both 'A' and 'B'

Description : Montelukast produces the following action(s) in bronchial asthma patients: A. Bronchodilatation B. Suppression of bronchial hyperreactivity C. Stabilization of mast cells D. Both 'A' and 'B'

Last Answer : D. Both 'A' and 'B'

The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is: A. Aspirin B. Procaine C. Morphine D. Sulfadiazine

Description : The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is: A. Aspirin B. Procaine C. Morphine D. Sulfadiazine

Last Answer : C. Morphine

Zymogen cells are also called (a) Mast cells (b) Oxyntic cells (c) Chief cells (d) None of these

Description : Zymogen cells are also called (a) Mast cells (b) Oxyntic cells (c) Chief cells (d) None of these

Last Answer : (c) Chief cells

Liver cells secrete -

Description : Liver cells secrete -

Last Answer : Liver cells secrete - A. amylopsin B. trypsin C. lipase D. bile and no enzyme

Which cells of mucous layer of stomach secrete pepsinogen

Description : Which cells of mucous layer of stomach secrete pepsinogen

Last Answer : Which cells of mucous layer of stomach secrete pepsinogen A. Chief cell B. Goblet cell C. Parietal cel D. Oxyntic cell

One of the following cells secrete hormone

Description : One of the following cells secrete hormone

Last Answer : One of the following cells secrete hormone A. Cells of Leydig B. Cells of Sertoli C ... `rarr` Secondary spermatocytes D. Secondary spermatocytes.

Sertoli cells secrete a hormone

Description : Sertoli cells secrete a hormone

Last Answer : Sertoli cells secrete a hormone A. Gonadotropin B. Testerone C. Relaxin D. Inhibin.

Tubular cells secrete _____ and _____

Description : Tubular cells secrete _____ and _____

Last Answer : Tubular cells secrete _____ and _____

Tubular cells secrete _____ and _____

Description : Tubular cells secrete _____ and _____

Last Answer : Tubular cells secrete _____ and _____

Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?

Description : Why Cells that carry on digestion within the cell do not partly digest themselves because they secrete their digestive enzymes into membrane-enclosed?

Last Answer : Feel Free to Answer

What the nervous tissues cells secrete collagen?

Description : What the nervous tissues cells secrete collagen?

Last Answer : What is the answer ?

β-cells of islet of langerhans of the pancreas secrete (A) Insulin (B) Glucagon (C) Somatostatin (D) Pancreatic polypeptide

Description : β-cells of islet of langerhans of the pancreas secrete (A) Insulin (B) Glucagon (C) Somatostatin (D) Pancreatic polypeptide

Last Answer : Answer : A

α Cells of Islets of Langerhans secrete (A) Insulin (B) Glucagon (C) Somatostatin (D) Cholecystokinin

Description : α Cells of Islets of Langerhans secrete (A) Insulin (B) Glucagon (C) Somatostatin (D) Cholecystokinin

Last Answer : Answer : B

The following statement(s) is/are true concerning cellular defense mechanisms. a. Macrophages function solely as antigen processing cells in the initial reaction to exposure to an antigen b. Macrophages may become activated and secrete cytokines c. Macrophages serve as phagocytic cells in the tissues but not within the bloodstream d. Polymorphonucleocytes (PMNS) are normally present in only small numbers within the tissue and enter an area of infection through diapedesis

Description : The following statement(s) is/are true concerning cellular defense mechanisms. a. Macrophages function solely as antigen processing cells in the initial reaction to exposure to an antigen b. Macrophages ... in only small numbers within the tissue and enter an area of infection through diapedesis

Last Answer : Answer: b, d A wide variety of cell types serve to provide host defense at several levels. Macrophages act as the initial antigen processing cell that serves to ... through diapedesis after chemotactic stimuli are excluded by macrophages, bacterial breakdown products, and complement activation

Which of the following is/are true concerning wound fibroblasts? A. Fibroblasts synthesize and secrete collagen molecules. B. Wound fibroblasts are derived from blood-borne precursor cells. C. Fibroblasts migrate to a wound along fibrin strands, which are used as a scaffold. D. Large amounts of fibrin or blood clot can act as a physical barrier to fibroblast penetration, which delays normal wound healing.

Description : Which of the following is/are true concerning wound fibroblasts? A. Fibroblasts synthesize and secrete collagen molecules. B. Wound fibroblasts are derived from blood-borne precursor cells. C. ... clot can act as a physical barrier to fibroblast penetration, which delays normal wound healing.

Last Answer : Answer: ACD DISCUSSION: Fibroblasts appear in the wound on about the third day of healing and begin to synthesize and secrete collagen molecules. Wound fibroblasts arrive from cells surrounding ... enzymes, and large amounts of fibrin and blood clot prevent fibroblasts from entering the wound

Which of the following cells secrete insulin? (1) Alpha cells (2) Delta cells (3) Nerve cells (4) Beta cells

Description : Which of the following cells secrete insulin? (1) Alpha cells (2) Delta cells (3) Nerve cells (4) Beta cells

Last Answer : (4) Beta cells Explanation: Insulin is a hormone that is exclusively produced by pancreatic beta cells. Beta cells are located in the pancreas in clusters known as the islets of ... appropriately stimulated, insulin is secreted from the cell by exocytosis and diffuses into islet capillary blood.

Sertoli cells are found in (a) ovaries and secrete progesterone (b) adrenal cortex and secrete adrenaline (c) seminiferous tubules and provide nutrition to germ cells (d) pancreas and secrete cholecystokinin.

Description : Sertoli cells are found in (a) ovaries and secrete progesterone (b) adrenal cortex and secrete adrenaline (c) seminiferous tubules and provide nutrition to germ cells (d) pancreas and secrete cholecystokinin.

Last Answer : (c) seminiferous tubules and provide nutrition to germ cells

Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+. (b) Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries. (c) About 60% of starch is hydrolysed by salivary amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na

Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Description : Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c ... and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Last Answer : (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen.

The layer of cells that secrete enamel of tooth is (a) osteoblast (b) odontoblast (c) dentoblast (d) ameloblast.

Description : The layer of cells that secrete enamel of tooth is (a) osteoblast (b) odontoblast (c) dentoblast (d) ameloblast.

Last Answer : (b) odontoblast

Which cells of ‘Crypts of Lieberkuhn’ secrete antibacterial lysozyme? (a) Paneth cells (b) Zymogen cells (c) Kupffer cells (d) Argentaffin cells

Description : Which cells of ‘Crypts of Lieberkuhn’ secrete antibacterial lysozyme? (a) Paneth cells (b) Zymogen cells (c) Kupffer cells (d) Argentaffin cells

Last Answer : (a) Paneth cells

Which cells of "Crypts of Lieberkuhn" secrete antibacterial lysozyme ? (1) Paneth cells (2) Zymogen cells (3) Kupffer cells (4) Argentaffin cells

Description : Which cells of "Crypts of Lieberkuhn" secrete antibacterial lysozyme ? (1) Paneth cells (2) Zymogen cells (3) Kupffer cells (4) Argentaffin cells

Last Answer : (1) Paneth cells

Zymogen cells of gastric gland secrete (a) Pepsinogen (b) Chymotrypsin (c) Pepsin (d) Trypsin

Description : Zymogen cells of gastric gland secrete (a) Pepsinogen (b) Chymotrypsin (c) Pepsin (d) Trypsin

Last Answer : (a) Pepsinogen

Zymogen cell and chief cells secrete (a) HCI (b) Mucus (c) Pepsi (d) Trypsin

Description : Zymogen cell and chief cells secrete (a) HCI (b) Mucus (c) Pepsi (d) Trypsin

Last Answer : (c) Pepsi

Which of the following cells secrete insulin? (1) Alpha cells (2) Delta cells (3) Nerve cells (4) Beta cells

Description : Which of the following cells secrete insulin? (1) Alpha cells (2) Delta cells (3) Nerve cells (4) Beta cells

Last Answer : Beta cells