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Blood Vessels
Question | Answer |
---|---|
Cardiology | Branch of medicine that deals with diseases and abnormalities of the heart |
Cardiologist | Doctor that specializes in heart disease and heart abnormalities |
What is the Circulatory System? | A system designed for transport of blood through the heart, blood vessels and lungs. Movement of blood helps move digested nutrients, oxygen, waste, and other materials around the body. |
What are the parts of the Cardiovascular System? | • Heart • Veins • Arteries • Venules • Arterioles • Capillaries • Blood |
How many chambers does the heart of birds, mammals, and crocodilians have? | 4 Chambers |
Where us the heart located? | In the thoracic (chest) cavity |
What type of anatomical parts make up the heart? | Muscle, chambers, and valves |
What is directly around the heart? | Pericardial sac |
Blood flow can start and stop T/F | False, blood flow is a never ending process which helps prevent thrombosis, delivers O2 and other nutrients to body tissues, and removes wastes. |
What muscle is found in the heart wall? | Myocardium |
Which vessels are thick walled and muscular? | Arteries |
What is the largest artery in the body? | Aorta |
What direction do arteries move blood? | AWAY from the heart (under more pressure) |
What makes up a bulk of the arterial wall? | Smooth muscle |
What is it called when the muscles in arteries and veins relax and contract? | Relax= vasodilation Contract= vasoconstriction |
What type of tissue in arteries provides strength and elasticity so can withstand forces of high blood pressure? | Connective tissue |
Normal HR for dogs | 60-140bpm |
Normal HR for cats | 140-220bpm |
Most major arteries originate from the aorta T/F | True |
Does the size of arteries get bigger or smaller when they are located further from the heart? | Size becomes progressively smaller |