Match the key responses with the descriptive statements that follow. Key: a. b. c. d. aqueous humor choroid ciliary body ciliary processes of the ciliary body e. f. g. h. i. cornea fovea centralis iris lens optic disc j. k. l. retina sclera scleral venous sinus m. vitreous humor a; aqueous humor k: sclera i: optic disc c· ciliary body 1. fluid filling the anterior segment of the eye 2. the "white" of the eye 3. part of the retina that lacks photoreceptors 4. modification of the choroid that
Premium Eye Skin Adipose tissue
Mechanism of Action of Drugs Affecting The Cardiovascular System 1) Antihypertensive Drugs: ➢ Diuretics ➢ (-Blockers ➢ ACE Inhibitors ➢ Angiotensin II-Receptor Antagonists ➢ Renin Inhibitors ➢ Calcium Channel Blockers ➢ (-Blockers 2) Antianginal Drugs ➢ Organic Nitrates ➢ (-Blockers ➢ Calcium Channel Blockers 3) Drug Treatment of Heart Failure
Premium Hypertension Cardiac muscle
BIOLOGY HSC NOTES MAINTAINING A BALANCE • Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates. Enzymes are protein molecules that allow the body to engage in chemical reactions‚ such as metabolism. There activities can be catalytic (being able to control the rate of either increasing/decreasing chemical reaction) Enzymes have a specific shape‚ and this shape must be intact‚ otherwise the effectiveness
Premium Enzyme Metabolism Chemical reaction
ENT 318 ARTIFICIAL ORGAN TUTORIAL 1 1. During exercise‚ venous return alters preload‚ afterload and inotropy. Discuss their physiological of increment according to ESV and EDV. 2. Explain the reason for having a reduction in stroke volume when afterload increased. 3. State the Frank-Starling Mechanism. Discuss effect of heart failure on the Frank-Starling curve. 4. Sketch a pressure-volume relationship of the left ventricle showing the condition of systolic dysfunction and diastolic dysfunction
Premium Heart Blood Blood pressure
Bottlenose Dolphin • Kingdom: Animalia • Phylum: Chordata • Class: Mammalia • Order: Cetacea • Sub-order: Odontoceti • Family: Delphinidae • Genus: Tursiops Species: Truncatus Habitat Being the most prevalent dolphin species in the world‚ the Common Bottlenose Dolphin is widespread‚ active throughout both temperate and tropical waters worldwide. Despite this extensive range‚ it does not appear to be present in polar waters (pole-ward 45°) except in southern New Zealand and northern
Premium Dolphin Cetacea
calf using the same methods as Exercise 3. In Exercise 5‚ we measured systolic pressure while the volunteer was standing and lying down. In Exercise 6‚ we measured the distance between the heart and where the veins in the hands collapse to determine venous pressure. In Exercise 7‚ we measured the forearm circumference as the volunteer held their arm above their head with increasing cuff pressure. Results: The average systolic and diastolic pressures for the four subjects were 114 mmHg and 78 mmHg.
Premium
The cardiovascular system consists of : heart (심장)‚ and vessels (혈관)‚ arteries (동맥)‚ capillaries (모세혈관) and veins (정맥). A functional cardiovascular system is vital (필수적인) for supplying oxygen and nutrients to tissues and removing wastes from them. Paths of Circulation: Pulmonary(폐의) Circuit : carrying blood to the lungs and back 1. The pulmonary circuit is made up of vessels that convey blood from the right ventricle to the pulmonary arteries to the lungs‚ alveolar capillaries‚ and pulmonary veins
Premium Heart Blood Blood pressure
smooth muscle and elastin has a smooth surface to decrease resistance to blood flow 2. Why are valves present in veins but not in arteries? it helps with the pressure to pump blood 3. Name two events occurring within the body that aid in venous return. respiratory muscular and 4. Why are the walls of arteries proportionately thicker than those of the correspondin with blood being pumped directly into to the arteries‚ it has more pressure on the arteries 211 Major Systemic Arteries
Premium Artery Vein Heart
http://www.medicinenet.com/script/main/art.asp?articlekey=9218 Intermittent claudication: An aching‚ crampy‚ tired‚ and sometimes burning pain in the legs that comes and goes -- it typically occurs with walking and goes away with rest -- due to poor circulation of blood in the arteries of the legs. In very severe claudication the pain is also felt at rest. Intermittent claudication may occur in one or both legs and often continues to worsen over time. However‚ some people complain only of weakness
Premium Blood Artery Blood vessel
following physiological information: The vasodilation caused by the consumption of alcohol increases the diameter of blood vessels‚ which increases the volume of blood that can pass through a vessel. This dilation of blood vessels decreases the amount of venous return to the heart. Also‚ this increased diameter of blood vessels and increased volume allows for less of the blood to come in contact with the walls of the vessels. So a larger volume of blood is allowed to pass through a vessel without obstruction
Premium Heart Blood Blood vessel