When the vagus nerve is stimulated (A), a rapid drop in arterial pressure occurs, when the depressor nerve is stimulated (B), the pressure decreases smoothly. The different nature of changes in blood pressure in these cases is due to the fact that

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A: The functioning of every tissue requires energy which is provided by the generating metabolic energy…

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Q: If blood pressure was to drop, how is the signal transmitted to the central nervous system?   a)…

A: Introduction Blood pressure is the pressure of blood pushing against the walls of our arteries. Our…

Q: nswer the following THREE questions in the box provided. 1. Why might vasconstriction lead to the…

A: Introduction  Raynaud's phenomenon is a form of intermittent arteriolar vasoconstriction that…

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A: Cerebral circulation: It is the transportation of blood in the brain through a network of blood…

Q: Describe two effects on the heart of sympathetic nervous system stimulation.

A: Introduction: The nervous system is categorized into the peripheral nervous system (PNS) and the…

Q: Explain how vascular resistance and blood flow are regulated by (a) sympathetic adrenergic fibers,…

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: What is meant by collateral flow?

A: There is a system for supplying oxygen-rich blood to each organ of our body. In the case of the…

Q: Does a change in body position from supine to standing cause a change in pulse?

A: The hydrostatic pressure exerted against the walls of blood vessels by blood flow is known as Blood…

Q: The circulatory system, especially the heart, suffers damage if the shock is prolonged? Give reasons…

A: The circulatory system includes the most important organ of the human body,i.e. heart. It consists…

Q: Danny is an overweight, hypertensive, 58-year-old male that experiences heavy pressure on his chest…

A: As is mentioned in question , Danny is overweight, hypertensive and has chest pain .In medical…

Q: At point A, note that mean arterial blood pressure (MABP) is slightly lowered despite the large fall…

A: Cardiac output is the amount of blood pumped by the heart in one minute and is determined by the…

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A: The sympathetic nervous system (or SNS) is involved in the innervation of major organ systems across…

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Q: If branch A is twice the length of branch B, what is true regarding the resistance in branch A…

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Q: After her workout, Arlene lies down on a mat to stretch out her leg muscles. She stands up suddenly…

A: Whenever an individual lies horizontally and exercises and then stands vertically, the blood supply…

Q: How does the barorecptor reflex explain the decrease in heart rate during carotid sinus massage?

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Q: Why might exercising on a very hot day result in fainting?

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Q: Why would compression of the common carotid arteries cause a person to lose consciousness?

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Q: What effect would stimulating the acetylcholine receptors of the heart have on cardiac output?

A: The heart is the primary muscular organ of the cardiovascular system that is responsible for pumping…

Q: In response to a severe hemorrhage, blood pressure lowers, the heart rate increases dramatically,…

A: The human body is made of different organ systems. Each of them is involved in maintaining the…

Q: release of --------- onto skeletal muscle blood vessles result in ...... 1. Acetylcholine,…

A: Hi, as per our authoring guidelines, we can only answer the first question. Please post the rest of…

Q: What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant?…

A: Most blood vessels, including those in the skin, the digestive tract, and the kidneys, constrict…

Q: Why, in physiological terms, does systolic blood pressure increase from rest to exercise and why…

A: Introduction: Metabolic requirements of the body at rest or during exercise are met by supplying…

Q: During strenuous exercise, which of the following changes most infuences total peripheral…

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Q: (a) What is a sinusoid? (b) Give two examples of where it can be found.

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Q: Johanna experiences a hemorrhage in an artery, and now blood is leaking out of the resulting hole.…

A: The blood pressure(BP) refers to the hydrostatic pressure exerted by the blood down the walls of a…

Q: What two structures directly receive an electrical impulse from the SA node?

A: Introduction: The sinoatrial node (SA node) is located on the heart's posterior region at the…

Q: Which of the following is most likely to cause a decrease in blood pressure (BF O a) A decrease in…

A: Increase in blood pressure stimulates parasympathetic nervous system which leads to relaxation of…

Q: cause of reflex tachycardia

A: TACHYCARDIA It is the medical which represents the fast heart rate. REFLEX TACHYCRDIA The reflex…

Q: What two effects result when the baroreceptor response to elevated blood pressure (BP) is triggered?

A: The circulatory system is that organ of the body that is responsible for the circulation and…