Description : Platelets contain an enzyme which has important role in clotting in blood. This enzyme is known as (A) Cholinesterase (B) Transaminase (C) Decarboxylase (D) Thrombokinase
Last Answer : Answer : D
Description : Given below are four statements (i-iv) regarding human blood circulatory system. (i) Arteries are thick-walled and have narrow lumen as compared to veins. (ii) Angina is acute chest pain when the blood circulation to the brain is ... (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)
Last Answer : (a) (i) and (iv)
Description : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood flow `//` GFR can activate JG cells to release re
Last Answer : Assertion `:-` The JGA plays a complex regulaltory role. Reason `:-` An increase in glomerular blood ... . D. If both Assertion & Reason are false.
Description : How do platelets initiate blood clotting? -Biology
Last Answer : answer:
Description : Which of these components of the blood is responsible for clotting - (1) R.B.C. (2) Lymphocytes (3) Monocytes (4) Platelets
Last Answer : (4) Platelets Explanation: Coagulation is the process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a ... begins almost instantly after an injury to the blood vessel has damaged the endothelium lining the vessel.
Description : The following are true about blood coagulation: a. heparin inhibits blood coagulation through its interference with vitamin K metabolism in the liver b. addition of vitamin K to freshly drawn ... delays clotting c. thrombin converts fibrinogen to fibrin d. platelets are essential for blood clot
Last Answer : thrombin converts fibrinogen to fibrin
Description : A patient who has been taking quantities of aspirin might show increased post operative bleeding because aspirin inhibits:** A. Synthesis of thromboxane A2 and prevents platelet aggregation B. ... network E. Increase the absorption of vitamin K and prevents synthesis of blood clotting factors
Last Answer : A. Synthesis of thromboxane A2 and prevents platelet aggregation
Description : When a wound occurs in humans, the platelets in th blood activate a substance which starts the clotting process. The substance which starts the clotting is: a) adenosine (pron: ah-den-ah-seen) b) histamine c) lecithin (pron: less-ah-thin) d) thrombin
Last Answer : ANSWER: D -- Thrombin
Description : Which of these components of the blood is responsible for clotting ? (1) R.B.C. (2) Lymphocytes (3) Monocytes (4) Platelets
Last Answer : Platelets
Description : Assertion `:-` Platelets repair dammaged endothelium of blood vessels. Reason `:` Platelets secrete serotonin which is a vaso constrictor
Last Answer : Assertion `:-` Platelets repair dammaged endothelium of blood vessels. Reason `:` Platelets secrete ... . If both Assertion & Reason are false.
Description : Platelets play an important role in haemostasis; which of the following describes this role? A. They convert fibrinogen to fibrin B. They agglutinate and plug small, ruptured ... thrombosis D. They supply fibrin stabilizing factors E. They supply proconvertin for thromboplastin activation
Last Answer : B. They agglutinate and plug small, ruptured vessels
Description : Which of the following cells or blood elements play a role in the initial phases of wound healing? a. Polymorphonuclear leukocytes (PMNs) b. Platelets c. Monocytes d. Lymphocytes
Last Answer : Answer: a, b, c, d Shortly after the initial injury, the wound is full of debris which is cleared over the next several days by recruited and activated phagocytic cells. ... in the initial hemostatic process as well as releasing chemotactic factors and factors leading to fibroblast proliferation
Description : Which of the following statement(s) is/are true concerning the treatment of MOFS? a. Prevention and therapy of MOFS requires control of the infectious or inflammatory source b. Restoration of normal ... of the nature of gut injury, total parenteral nutrition is preferred for most patients with MOFS
Last Answer : Answer: a, c The therapy of MOFS is directed towards interrupting the involving pathophysiologic process and providing an optimal physiologic environment for healing and recovery. ... Enteral absorption and processing of nutrients appears superior to TPN and lessens overall complications
Description : Aspirin prolongs bleeding time by inhibiting the synthesis of: A. Clotting factors in liver B. Prostacyclin in vascular endothelium C. Cyclic AMP in platelets D. Thromboxane A2 in platelets
Last Answer : D. Thromboxane A2 in platelets
Description : Cytokines which play an important role in the metabolic response to injury include: a. Tumor necrosis factor—a (TNF) b. Interleukin-1 (IL-1) c. Interleukin-6 (IL-6) d. Interferon-g
Last Answer : Answer: a, b, c, d TNF or cachetin is considered the primary mediator of the systemic effects of endotoxin, producing anorexia, fever, tachypnea, and tachycardia at low doses and hypotension, ... infected sells. IFN-g has the ability to upregulate the number of TNF receptors on various cell types
Description : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. Reason `:-` Angiotensin I is a powerful vaso c
Last Answer : Assertion `:-` An increase in glomerular blood pressure can activate the JG of kidney to release renin. ... . D. If both Assertion & Reason are false.
Description : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B
Last Answer : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. ... False. D. If both Assertion & Reason are false.
Description : Assertion `:-` The wall of atria release ANF in response to high B.P. and blood volume. Reason `:-` ANF acts as a vasodilator and inhibits the release
Last Answer : Assertion `:-` The wall of atria release ANF in response to high B.P. and blood volume. Reason `: ... False. D. If both Assertion & Reason are false.
Description : What is the organ where most of the clotting factors are produced? What is the role of vitamin K in the blood coagulation?
Last Answer : Most of the clotting factors are produced in the liver. Vitamin K participates in the activation of several clotting factors and it is fundamental for the well-functioning of the blood coagulation.
Description : Platelets have a wide array of functions in inflammation. Which of the following are among these? a. Synthesis and release of vasoactive eicosanoids b. Release of chemotactic factors c. ... coating of bacterial and tumor cells d. Increase of vascular permeability e. Phagocytosis of bacteria
Last Answer : Answer: a, b, c, d Platelets are anucleated cells derived from megakaryocytes in the bone marrow. Their central role in hemostasis is well known. Platelets possess a wide ... primitive precursor inflammatory cell. Platelets serve primarily as an amplifier or modulator of the inflammatory response
Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation
Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion
Description : The neurohormonal arm of the stress response is well defined. Less is known about the inflammatory arm mediated primarily by cytokines. Which of the following statement(s) is/are true ... Cytokine release may stimulate the release of other cytokines leading to an important cascade of events
Last Answer : Answer: a, d Cytokines, which are produced at the site of injury by endothelial cells and by diverse immune cells throughout the body, also occupy a pivotal position in the stress response ... act as hormones and spill over into the systemic circulation and become detectable in the bloodstream
Description : Assertion : `Ca^(2+)` plays important role in the musclc contraction. Reason : `Ca^(2+)` Combines with troponin chain, displacing tropomyosin allowing
Last Answer : Assertion : `Ca^(2+)` plays important role in the musclc contraction. Reason : `Ca^(2+)` ... false . D. If both Assertion and Reason are false.
Description : My peach tree seems to be infested with bugs. All of the peaches are oozing and full of holes.
Last Answer : for right this minute..............after the sun goes down and the tree has cooled off mix up 2 tablespoons dawn & 1 qt water and spray each fruit and then the leaves, bark & branches..............this ... a little over 100 fruit trees..........we have don this since 1970.............Happy summer.
Description : what is the gray oozey gravy like liquid oozing at the base of my oak tree?
Last Answer : Need Answer
Description : _____ is a widespread and highly contagious staphylococcal skin disease with thin-walled blisters oozing a yellowish fluid that forms a crust. a. furuncle b. carbuncles c. impetigo d. abscess
Last Answer : c. impetigo
Description : In children, this skin disease is characterized by the production of thin-walled blisters oozing a yellowish fluid and forming yellowish- brown flakes. a. Toxic shock syndrome b. Scalded skin syndrome c. Erysipelas d. Impetigo
Last Answer : d. Impetigo
Description : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` Aldosterone causes reabsorption of `Na^(o+)` and wate
Last Answer : Assertion `:-` Angiotensin II, activates the adrenall cortex to release aldosterone. Reason `:-` ... D. If both Assertion & Reason are false.
Description : Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus to release ADH. Reason `:-` ADH facilitates
Last Answer : Assertion `:-` An increase in body fluid volume activate osmoreceptors , which stimulate the hypothelamus ... . If both Assertion & Reason are false.
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
Description : Assertion: Cholagogues are substances that cause the contraction of gall bladder. Reason: These substances cause release of CCK-PZ from duodenum
Last Answer : Assertion: Cholagogues are substances that cause the contraction of gall bladder. Reason: These substances cause release of CCK-PZ from duodenum
Description : After being counseled about lifestyle and dietary changes, the patient was started on atorvastatin. During his treatment with atorvastatin, it is important to routinely monitor serum concentrations of (a) ... Alanine and aspartate aminotransferase (c) Platelets (d) Red blood cells (e) Uric acid
Last Answer : Ans: D
Description : Haemoglobin is an important constituent of – (1) Red blood cells (2) White blood cells (3) Platelets (4) Plasma
Last Answer : (1) Red blood cells Explanation: Hemoglobin is the ironcontaining oxygen-transport metalloprotein in the red blood cells of all vertebrates. Hemoglobin in the blood carries oxygen from the respiratory ... carbon dioxide to bring it back to the respiratory organs to be dispensed from the organism.
Description : Haemoglobin is an important constituent of (1) Red blood cells (2) White blood cells (3) Platelets (4) Plasma
Last Answer : Red blood cells
Description : A 32-year-old man suffers a spinal cord injury with a resultant paraplegia in a motorcycle accident. He presents to the emergency room with hypotension. Which of the following statement(s) is/ ... injury will be uncommon d. There is no role for pharmacologic intervention to maintain blood pressure
Last Answer : Answer: c Neurogenic shock results from interruption of sympathetic vasomotor input and develops after spinal cord injury, spinal anesthesia, and severe head injury. Under normal conditions, baseline ... the cause is not neurogenic and search for occult blood loss or cardiogenic causes of shock
Description : Which of the following statement(s) is/are true concerning the neuroendocrine responses to shock? a. Sympathetic nerve endings release epinephrine which is responsible for greater than 80% ... injury and sepsis d. The renin-angiotensin axis further augments the sympathetic-mediated vasoconstriction
Last Answer : Answer: c, d The neuroendocrine response to shock attempts to achieve restoration of effective blood volume, mobilization of metabolic substrates, and maintenance of central ... . Angiotensin II is an extremely effective vasoconstrictor that further augments sympathetic-mediated vasoconstriction
Description : A. It is a clonidine congener used in spasticity due to stroke or spinal injury B. It reduces muscle tone by activating GABAB receptors C. It inhibits release of excitatory amino-acids in spinal interneurones D. It reduces muscle spasms without producing weaknes
Last Answer : B. It reduces muscle tone by activating GABAB receptors
Description : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- Cell wall helps in cell to cell interaction and
Last Answer : Assertion:- Cell wall is not only a structural component but also show dynamic role for cell. Reason:- ... . D. If both Assertion & Reason are false.
Description : Assertion: Ecological pyramids cannot explain all vital functions of any ecosystem. Reason: Pyramids actually do not explain the role of organisms wor
Last Answer : Assertion: Ecological pyramids cannot explain all vital functions of any ecosystem. Reason: Pyramids actually ... and Reason are false, then mark (4)
Description : Would you find the cotton on Q-tips as it was when it went in, or would it disintegrate after a very long time?
Last Answer : answer:You mean if some cotton got stuck in the wax inside an ear? It would come out with the wax and/or water from showering etc eventually, unless the wax flow got blocked, in which case it'd be ... more like a drawer than a compost heap, and that it'd tend to get cleared out before it decomposed.
Description : Why are egg noodles (in the US) still packaged in those crisp bags that tear wide open and then disintegrate when you go to use them?
Last Answer : They do this to maximize profits when the packaging costs more than the contents.
Description : `._(13)Al^(27)` is a stable isotope. `._(13)Al^(29)` is expected to disintegrate by
Last Answer : `._(13)Al^(27)` is a stable isotope. `._(13)Al^(29)` is expected to disintegrate by A. ... B. `beta`-emission C. positron emission D. proton emission
Description : The `.^(60)C` isotope decays with a half life of 5.3 years. How long would it take for 7/8 of a sample of 500 mg of `.^(60)Co` to disintegrate?
Last Answer : The `.^(60)C` isotope decays with a half life of 5.3 years. How long would it take for 7/8 of a sample ... B. 15.9 years C. 10.6 years D. 5.3 years
Description : Why do meteoroids usually disintegrate?
Last Answer : Need answer
Description : How long for mothballs to disintegrate under the mobile home?
Last Answer : Feel Free to Answer
Description : What does it mean to disintegrate?
Last Answer : It means to deteriorate, decompose, or come apart.Examples:"The medical examiner had a hard time getting an ID because the corpse had completely disintegrated.""Cheating and finances are two things that make families disintegrate."
Description : Choose the incorrect statement from the following: (a) The nuclear becomes weak if the nucleus contains too many protons compared to the number of neutrons (b) The nuclear force becomes weak if the ... (d) The nuclear force becomes very strong if the nucleus contains a large number of nucleons.
Last Answer : Ans:(d)
Description : The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a GeigerMuller counter from its known quantity. If the half life period of a ... in four months (D) 1/8th of it will remain intact at the end of four months
Last Answer : (B) It will completely disintegrate in two months
Description : If mammalian ovum fails to get fertilised, which one of the following is unlikely? (a) Corpus luteum will disintegrate. (b) Progesterone secretion rapidly declines. (c) Estrogen secretion further increases. (d) Primary follicle starts developing.
Last Answer : (c) Estrogen secretion further increases.
Description : Pick up the correct statement from the following: (A) Lime in excess, causes the cement to expand and disintegrate (B) Silica in excess, causes the cement to set slowly (C) Alumina in excess, reduces the strength of the cement (D) All the above
Last Answer : Answer: Option D