NATS 1675 Study Guide - Midterm Guide: Atrioventricular Node, Pulmonary Circulation, Cardiac Muscle

• School: York University
• Department: Natural Science
• Course: NATS 1675
• Professor: Robert Crippen

Document Summary

The heart is the pumps, two pumps side by side. Arteries - are large vessels that carry blood away from the heart. Most arteries carry oxygenated blood but by definition go with arteries carry blood away from the heart. Capillaries turn into venules - small veins = capillary walls thicker. Veins - venules become larger, = veins - carry blood to the heart. Circulatory system connects within other organ systems - digestive tract, kidney, digestive system and other major organ systems. Two types of muscles - skeleton and smooth or involuntary muscles. Some cardiac muscles will extent into the aorta = major artery leaving the left ventricle. Others tissues making up the heart includes fat tissues and connective tissues. Each cell interconnects with several others cardiac cells. Cardiac muscles combine features of both smooth and skeleton muscles. Cardiac muscle and smooth muscles the most part is involuntary.