2. Adjustment of salt levels in the blood 3. Adjustment of water content in the bloob Describe the process of ultrafiltration 1. Blood from renal artery flows through glomerulus (bundle of capillaries) 2. A high pressure is built which squeezes water, urea, salts and glucose out of the blo...
innermost and is in direct contact with blood in lumen. contains endothelium, simple squamous epithelium which provides smooth surface for blood flow. 點擊卡片即可翻轉 👆 tunica intima 點擊卡片即可翻轉 👆 1 / 37 bellacapaldi Quizlet上的頂尖創作者· 2年前建立 分享 用學習模式提升成績 82%的學...
-Each time an artery branches, the total cross‐sectional area of all its branches is greater than the cross‐sectional area of the original vessel, so blood flow becomes slower and slower as blood moves further away from the heart, and is slowest in the capillaries. - does blood speed ...
1)Disc Shaped: To help smooth flow through narrow vessels; can bend !!! 2)Concave on Each Side: High Surface to Volume Ratio !!! MATURE RBC HAVE NO NUCLEI!!! Almost the entire Volume of Red Blood Cell is taken up by The oxygen carrying moleculeHEMOGLOBIN Main ...
What type of blood vessel is formed when capillaries unite? venules What special adaptation are required in veins to help return blood to the heart? venus valves Where are venous valves most abundant? in the lower limbs What do venous valves oppose? gravity What do one-way valves prevent?
1. control blood flow through the organs 2. vasoconstriction: contract3. vasodilation: relax smooth muscle what do capillaries do?how large are they? what are they made of? 1. exchange with surrounding tissues2.only 1 mm long, but make up 40% of milage in the body3. only the endothelium...
increase in interstitial fluid excess filtration Factors affecting circulation velocity of blood flow, volume, blood pressure, resistance to flow, venous return Velocity of blood flow is.. inversely related to the combined cross-sectional area of blood vessels... arteries have fastest, capillaries have...
venous valves prevent back flow of blood varicose veins abnormally swollen, twisted veins with defective valves; most often seen in the legs-pooling of blood-poor valves capillaries one layer (tunica interna), usually only one cell thick blood pressure pressure un arteries What's normal blood pres...
Blood gets pumped through the, Inspiration causes Diaphragm to contract which increases thoracic cavity volume, decreases thoracic cavity pressure and abdomen cavity pressure to increase causing blood flow towards the heart Venomotor tone Smooth muscle tension in the veins (sympathetic vasoconstrictior act...