ANP 1105 Lecture Notes - Lecture 14: Angiogenesis, Pressure Gradient, Pituitary Gland

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: John Copeland

Document Summary

Delivery system of dynamic structures that begins and ends at the heart. Arteries carry oxygenated blood away from the heart (except for pulmonary and umbilical artery) Capillaries contact tissue cells and directly serve cellular needs. Veins carry blood towards the heart (except pulmonary and umbilical vein) Arteries arterioles capillaries venules veins. Arteries and veins: tunica intima, tunica media, tunica externa. Blood flow is the volume of blood through a vessel, an organ, or the entire circulation in a given period. Equivalent to cardiac output (co) for vascular system. Varies widely through individual organs, based on needs (what we are doing) Requires cooperation of the heart, blood vessels, and kidneys. Blood pressure is the force per unit are exerted on the wall of a blood vessel by the blood. -measured in mmhg. Measured as the systemic arterial blood pressure in large arteries near the heart. Pressure gradient drives the force that keeps blood moving from higher to lower pressure areas.