fluctuate and increase with exercise illness injury and emotions 26 Give

Fluctuate and increase with exercise illness injury

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fluctuate and increase with exercise, illness, injury, and emotions26 Give examples of how heart stroke volume can be regulated.The stroke volume can also be increased or decreased. One factor that can increase the stroke volume is an increased end-diastolic volume. This puts more blood in the ventricles, causing them to contract harder.27 How is blood pressure regulated? Explain the role of the following hormones in blood pressure regulation: ANP, ADH, aldosterone, renin, angiotensin, epinephrine.ANP- increases blood pressureADH- increases volume and pressure of bloodAldosterone- increases blood volume and pressureRenin- increases blood pressureAngiotensin- lowers blood pressureEpinephrine- increase in blood pressure28 What factors can cause heart disease (atherosclerosis)?High blood pressure, smoking, high cholesterol , and less physical activities, diabetic, overweight29 Explain the functions and main structures involved in pulmonary and systemic blood circulation.The systemic circulation is the part of blood circulation that carries oxygenated blood away from the heart, to the body, and returns deoxygenated blood back to the heart.In the pulmonary circulation, blood travels through capillaries on the alveoli, air sacs in the lungs which allow for gas exchange.30 List the types of blood vessel type that blood goes through as it leaves the heart, before it returns back to the heart. In which type does the exchange of molecules happen?The arteries (red) carry oxygen and nutrients away from your heart, to your body's tissues. The veins (blue) take oxygen-poor blood back to the heart.
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Arteries begin with the aorta, the large artery leaving the heart.They carry oxygen-rich blood away from the heart to all of the body's tissues.They branch several times, becoming smaller and smaller as they carry blood further from the heart.CapillariesCapillaries are small, thin blood vessels that connect the arteries and the veins.Their thin walls allow oxygen, nutrients, carbon dioxide and waste products to pass to and from the tissue cells.VeinsThese are blood vessels that take oxygen-poor blood back to the heart.Veins become larger and larger as they get closer to the heart.The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.31 Explain the location of major blood vessels of the body, such as aorta, coronary arteries, vena cava, portal vein, pulmonary arteries (pulmonary trunk) and pulmonary veins, carotid arteries, subclavian arteries. which organs does each supply or receive blood from?32 What are the functions of anastomosis blood vessels? Where can you find them?Anastomoses occur normally in the body in the circulatory system, serving as backup routes for blood flow if one link is blocked or otherwise compromised. Between arteries and veins33 Explain how portal circulation is different from regular circulation. In which organs can you find it?Portal circulation - circulation of blood to the liver from the small intestine, the right half of the colon, and the spleen through the portal vein; sometimes specified as the hepatic portal circulation.
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