Capillary Problems about Phisiology

Name:_______________________________________________ Due Tueday, April 16, at 3:40 PM. Do not email it to me. Do the problems and answer the questions related to them on this page. Questions on the second page should be answered, printed, and attached to this page. Capillary Problems Glomerular capillary of kidney Blood hydrostatic pressure at arteriolar end Blood hydrostatic pressure at the venular end Oncotic press Interstitial hydrostatic pressure Interstitial osmotic pressure 60 mm Hg 58 mm Hg 25 mm Hg 1 mm Hg 0 What is the direction of fluid movement at each end of the capillary and what is the force of the movement in mm Hg? (10 points) Arterial end: Venous end: What is happening in this capillary bed in terms of exchange and why is it adaptive to this organ’s functions? (10 points) Intestinal capillary (in villi) Blood hydrostatic pressure at arteriolar end Blood hydrostatic pressure at the venular end Oncotic pressure Interstitial hydrostatic pressure Interstitial osmotic pressure 20 mm Hg 16 mm Hg 25 mm Hg 1 mm Hg 0 What is the direction of fluid movement at each end of the capillary and what is the force of the movement in mm Hg? (10 points) Arterial end: Venous end; What is adaptive about this result? What purpose does it serve in this tissue? (10 points) List and describe the 3 major types of capillaries. (15 points) Coronary artery disease is usually caused by a buildup of plaque in the coronary artery and the reduced blood flow can ischemia in heart muscle. How does this affect the ions in and out of the cardiac myocytes? What is the effect on cardiac myocyte contraction? Be specific. (12 points) Why is flow through the vascular system continuous and not pulsatile? (10 points) What is a portal system? (10 points)