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A&P2 Circulatory
Del-Tech Owens A&P2 Circulatory Practice
| Question | Answer |
|---|---|
| Elastic arteries, muscular arteries, and arterioles all carry blood __ the heart. | away from |
| Elastic arteries have more __ tissue than smooth muscle. | elastic |
| Larger arteries that are close to the heart are made from __ arteries. | elastic |
| Elastic arteries __ and spring back when blood is pumped into them. | stretch |
| Elastic arteries prevent blood pressure from __ when the heart ventricles relax. | falling |
| Muscular arteries have more __ __ than elastic tissue. | smooth muscle |
| If vasoconstriction is caused by a contraction of smooth muscle in the blood vessels, then vasodilation must occur when the smooth muscles __. | relax |
| Arterioles carry blood from muscular arteries to __. | capillaries |
| Vessels that pass blood from arterioles to body tissues are called __. | capillaries |
| Interior capillary walls have a lining called __. | endothelium |
| The space inside a capillary is about the same diameter as that of a single __. | erythrocyte |
| The lungs, liver, kidneys, and muscles all have __ capillaries that most other tissues. | more |
| Precapiallary __ can be found at the origin of capillary branches to regulate blood flow. | sphincters |
| The smallest veins in the body are called? | venules |
| Venules are slightly larger than __, so they are a little bigger on the inside than a single red blood cell. | capillaries |
| Small __ are slightly larger than venules. | veins |
| The outer layer of a vein or artery is called the __. | tunica adventitia |
| The smooth muscle layer of a vein or artery is called the __. | tunica media |
| The inner, endothelial layer of a vein or artery is called the __. | tunica intima |
| Veins greater than __mm have valves that prevent blood from flowing backwards. | two |
| The valves in our veins are just two flaps in the tunica intima (innermost layer) that are shaped like the __ valves of the heart. | semilunar |
| Having more valves in the veins that run through our __ extremities help combat the effects of gravity. | lower |
| Blood pools above the valve in a vein cause a condition known as __. | varicose veins |
| There are 2 pathways for blood to reach our heads. What are they? | carotid arteries (internal and external); vertebral arteries |
| There are 2 pathways for blood to leave our heads. What are they? | jugular veins (internal and external); subclavian veins |
| As blood leaves our heads via the subclavian veins, they drain into the __ veins that join to form the superior vena cava. | brachiocephalic |
| Check out this link for more help with arteries. | http://quizlet.com/6039733/major-blood-vessels-flash-cards/ |
| What blood vessel carries oxygen-poor blood to the lungs? | pulmonary arteries |
| What blood vessel brings oxygen-poor blood from the upper body to the right atrium? | superior vena cava |
| What blood vessel brings oxygen-rich blood from the right lung to the left atrium? | right pulmonary veins |
| What blood vessel brings oxygen-rich blood from the left lung to the left atrium? | left pulmonary veins |
| What blood vessel brings oxygen-poor blood from the lower body to the right atrium? | inferior vena cava |
| Blood that returns to the right side of the body is oxygen __. | poor |
| Blood leaving the left side of the heart is oxygen __. | rich |
| All arteries carry blood that is oxygen rich except the __ that carries blood to the lungs to become oxygenated. | pulmonary artery |
| Arteries carry blood __ from the lungs. | away |
| These return oxygen poor blood (after the blood has passed through the capillaries) to the heart. | veins |
| These help keep blood from accumulating in the limbs and stretching the veins out of shape. | valves |
| Sensory neurons located throughout the body detect blood pressure and send impulses to this in the brain stem. | medulla oblongata |
| If fatty deposits called plaque build up on the walls of arteries, you have what condition? | atherosclerosis |
| Circulation of blood from the heart to the lungs and back is called? | pulmonary circulation |
| Circulation from heart to body and back is called? | systemic circulation |
| Color of blood in arteries is usually __. | bright red |
| Color of blood in veins is usually __. | dark red |
| What blood vessel carries blood from the heart to the head and body through the left ventricle? | aorta |
| Arterioles divide into __. | capillaries |
| Venules combine to from __. | veins |
Created by:
IsaacJ
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