Description : Which of the following statements(s) is/are true concerning human energy requirement? a. In normal subjects, less than 5% of basal energy requirement is spent on cardiac output and the ... d. Similar increases in energy expenditures are associated with elective surgery and trauma or thermal injury
Last Answer : Answer: a, c Basal energy requirements are measured with the subject at rest when no external work is being done; the energy is used mainly for transport and synthetic work within cells. A ... average-sized adult who sustains a major burn rarely may require more than 3500 kcal/day for maintenance
Description : Consider the following statements: 1. When a nerve fibre is stimulated, a profound change is produced in the electrical properties of surface membrane and in steady potential. 2. Upon excitation, the resting potentialis suddenly changed. 3. It is due ... 1, 2, 3 (b) 2, 3 (c) 1, 2, 3, 4 (d) 1, 2, 4
Last Answer : Ans:(d)
Description : Pick up the incorrect statement from the following: (A) The various functions under each activity, are shown by one bar on Bar Charts (B) Bar chart establishes the interdependency of one event on another (C) Only approximate percentage of the completed work is reported (D) None of these
Last Answer : (B) Bar chart establishes the interdependency of one event on another
Description : Which of the following increases the rate of heart beat? (1) Peripheral nerves (2) Sympathetic nerves (3) Parasympathetic nerves (4) Cranial nerves
Last Answer : (2) Sympathetic nerves Explanation: Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous ... parasympathetic nervous sys-tem (PNS) releases the hormone acetylcholine to slow the heart rate.
Description : Nor-epinephrine (i) is released by sympathetic fibers (ii) is released by parasympathetic fibers (iii)increases the heart rate (iv) decreases blood pressure. Which of the above statements are correct? (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)
Last Answer : (a) (i) and (iii)
Description : How do parasympathetic neural signals affect the working of the heart? (a) Reduce both heart rate and cardiac output. (b) Heart rate is increased without affecting the cardiac output. (c) Both heart rate and cardiac output increase. (d) Heart rate decreases but cardiac output increases.
Last Answer : (a) Reduce both heart rate and cardiac output.
Last Answer : Sympathetic nerves
Description : When used as an antiarrhythmic drug, Lidocaine typically (a) Increases action potential duration (b) Increases contractility (c) Increses PR interval (d) Reduces abnormal automaticity (e) Reduces resting potential
Last Answer : Ans: D
Description : Which controls reflex action? Options: A) Sympathetic nervous system B) Central nervous system C) Parasympathetic nervous system D) Sensory nerves
Last Answer : C) Parasympathetic nervous system
Description : A patient of CHF was treated with furosemide and digoxin. He became symptom-free and is stable for the last 3 months with resting heart rate 68/min in sinus rhythm but left ventricular ... medication as before C. Continue the diuretic but stop digoxin D. Continue digoxin but stop the diuretic
Last Answer : A. Stop above medication and start an ACE inhibitor
Description : The electrophysiological effects of digitalis on Purkinje fibres include the following except: A. Enhancement of resting membrane potential B. Decrease in the slope of phase-0 depolarization C. Increase in the rate of phase-4 depolarization D. Abbreviation of action potential duration
Last Answer : A. Enhancement of resting membrane potential
Description : Choose the incorrect statement from the following (a) Sympathetic system increases rate of SA node (b) Sympathetic system causes constriction of coronary arteries (c) Sympathetic system causes increased motility of GIT smooth muscles (d) Sympathetic system causes constriction of sphincter in GIT
Last Answer : Ans: C
Description : When insects get attacked does their heart rate increase and respond to a fight or flight response?
Last Answer : most of insects apply to flight not fight response.
Description : Fight-or-flight reactions cause activation of (a) the parathyroid glands, leading to increased metabolic rate (b) the kidney, leading to suppression of renin- angiotensin-aldosterone pathway (c) ... epinephrine and norepinephrine (d) the pancreas leading to a reduction in the blood sugar levels.
Last Answer : (c) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine
Description : When an object that is moving slows down, which action must be occurring?
Last Answer : friction
Description : Regarding verapamil, which one of the following statements is false? (a) Angina pectoris is an important indication for the use of verapamil (b) Contraindicated in the asthmatic patient (c) ... phase of the action potential in AV nodal cells (e) Used in management of supraventricular tachycardias
Last Answer : Ans: B
Description : Which of the following drugs depresses automaticity of SA node as well as ectopic foci, abbreviates action potential duration of Purkinje fibres, and slows atrioventricular conduction: A. Propranolol B. Lignocaine C. Procainamide D. Bretylium
Last Answer : A. Propranolol
Description : Compared to mammals do birds absorb more or less water in their digestive system? Why is this phenomenon an adaptation to flight?
Last Answer : Bird feces are more liquid than mammal feces, i.e., less water is absorbed in the avian digestive system. The more frequent elimination of feces in birds due to their less solid feces is an adaptation to flight since their body weight is kept lower.
Description : In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic neural signals (C ) Adrenal me
Last Answer : In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic ... ,E,F C. A,C,D D. B,D,F
Description : The sympathetic and parasympathetic systems exert functionally opposite influences on the following parameters except: A. Heart rate B. Atrial refractory period C. Pupil diameter D. Intestinal motility
Last Answer : B. Atrial refractory period
Description : ‘Fight or flight’ state can be described as (a) Sympathetic active; para-sympathetic quiescent (b) Sympathetic active; para-sympathetic active (c) Sympathetic quiescent; para-sympathetic active
Last Answer : Ans: A
Description : Pick out the correct statement. (A) A catalyst speeds up the forward reaction but slows shown the reverse reaction (B) Addition of catalyst changes the equilibrium constant (C) Pressure changes do not change the equilibrium concentrations (D) The composition of equilibrium is changed by catalyst
Last Answer : (C) Pressure changes do not change the equilibrium concentrations
Description : A theory that establishes the minimum sampling rate that can be used for a given PCM systems.
Last Answer : Nyquist sampling theorem
Description : A theory that establishes the minimum sampling rate that can be used for a given PCM systems
Description : Choose the correct statement about nicotine: A. It selectively stimulates parasympathetic ganglia B. It has no clinical application C. It is used as an aid during smoking cessation D. It is used in Alzheimer's disease
Last Answer : C. It is used as an aid during smoking cessation
Description : The ultimate consolidation settlement of a structure resting on a soil (A) Decreases with the increase in the initial voids ratio (B) Decreases with the decrease in the plastic limit (C) Increases ... increase in the initial voids ratio (D) Increases with the decrease in the porosity of the soil
Last Answer : Answer: Option A
Description : Resting face height in edentulous patients: A. Decreases when head is tilted back (the opposite is true B. Increases when lower denture is inserted C. Does not change over time
Last Answer : B. Increases when lower denture is inserted
Description : What statement from the poem most clearly establishes characterization for unferth?
Last Answer : What is the answer ?
Description : Point out the wrong statement. a) Distributed transaction systems such as internetworks or cloud computing systems magnify the difficulties faced by identity management systems b) Services that provide digital ... a domain as belonging to a set of assigned addresses d) None of the mentioned
Last Answer : IDaaS Server establishes the identity of a domain as belonging to a set of assigned addresses
Description : ---------------- establishes the relationship of different individual items which same common items a) Common size statements b) Comparative statements c) Trend analysis d) Comparative Income Statement
Last Answer : a) Common size statements
Description : What is the difference between resting potential and action potential? -Biology
Last Answer : answer:
Description : What is the difference between resting potential and action potential?
Last Answer : Feel Free to Answer
Description : Procainamide differs from quinidine in the following respect (a) It does not cause paradoxical tachycardia (b) It has no alfa adrenergic blocking activity (c) It has little antivagal action (d) Both (b ... a) Pacemaker function (b) Resting potential (c) Action potential duration (d) All of the above
Description : The coils of spring which are in contact with the seat and do not contribute to spring action are called (A) resting coils (B) static coils (C) inactive coils (D) ideal coils
Last Answer : (C) inactive coils
Description : The characteristic feature(s) of penicillin G is/are: A. It is unstable in aqueous solution B. Its antibacterial action is unaffected by pus and tissue fluids C. It is equally active against resting and multiplying bacteria D. Both ‘A’ and ‘B’ are correc
Last Answer : D. Both ‘A’ and ‘B’ are correct
Description : The sodium/potassium pump is primarily responsible for the: a) resting potential b) action potential c) excretion of salts d) contraction of muscle fibers
Last Answer : ANSWER: A -- RESTING POTENTIAL
Description : Select the incorrect statement. (A) Effective cohesion of a soil can never have a negative value. (B) Effective angle of internal friction for coarse grained soils is rarely below 30°. (C ... (D) Effective angle of internal friction is a complicated function of mineralogy and clay size content.
Description : Do you think you are fight or flight?
Last Answer : answer:It would depend whether I have family or not. If I had family and they were going to be unsafe, I'd leave. If not, I think I'd more likely to stay and try to hold my ground. There' ... risk and potentially dying. If leaving is an option, I am a strong believer in living to fight another day.
Description : Fight or Flight: Which is the go-to response for Homo Sapiens?
Last Answer : There is no such thing as more or less evolved. This is not how evolution works. Are you asking what the behavioral response would be during the physiological response described by the flight-or-fight response? I’m not sure what you’re asking here.
Description : Fight or flight?
Last Answer : answer:I find that thinking in a life-threatening situation leads to paralysis, so I merely react. On icy roads in the dark, I feel the balance of the car, which tires have grip, and juggle the ... thing and flowing with it. Save the thought part for later when you can afford to go to pieces.
Last Answer : I hope I would try to do something, even if it was just making noise. I read long ago that hollering “Fire” would get help faster.
Description : Fight or Flight? How do you react, and what situations push you towards these reactions?
Last Answer : Is this dilemma regarding a physical threat or just a situational threat? If it is a physical threat and you have an opportunity to run, that is often the wisest thing to do. In a situation where there is no immediate harm, then fight if you have a chance of winning – otherwise ignore it.
Last Answer : It totally depends on the situation.
Description : Fight-or - flight reaction causes activation of :
Last Answer : Fight-or - flight reaction causes activation of : A. the parathyroid glands, leading to increased ... to a reduction in the blood sugar levels.
Description : Assertion : Adrenal cortex is called the gland for "fight, fright, and flight." Reason : The hormones adrenaline and nor-adrenaline help the body to c
Last Answer : Assertion : Adrenal cortex is called the gland for "fight, fright, and flight." Reason : The hormones ... . D. If both Assertion and Reason are false.
Description : Which one secrets fight and flight hormone ?
Last Answer : Which one secrets fight and flight hormone ? A. Pituitary gland B. Pineal gland C. Adrenal gland D. Thyroid gland
Description : Fight and flight hormone is
Last Answer : Fight and flight hormone is A. Thyroid gland B. Thymus gland C. Adrenal gland D. Parathyroid gland
Description : When the body the fight or flight response happens?
Description : Which scientist is associated with fight or flight syndrome?
Last Answer : Walter Cannon