BIOL 1119 Lecture Notes - Lecture 2: Brainstem, Pulmonary Vein, Renal Vein

• School: Northeastern University
• Department: Biology
• Course: BIOL 1119
• Professor: Christopher Richardson

Document Summary

Karina da rosa: blood vessels and circulation, anatomy of blood vessels i. Innermost layer that comes in contact with the blood a: simple squamous endothelium that is above loose connective tissue (basement membrane) i. In between these two layers is the basal lamina: composed of a protein-carbohydrate layer, helps anchor endothelium to the basement membrane, endothelium is selectively permeable i. Repels blood cells and platelets but if it is damaged, blood clots will occur: tunica media, middle layer that is usually the thickest i. ii. Arteries (efferent vessels: transport blood away from the heart, structures that resist pressure damage, types of arteries, conducting arteries i. ii. iii. iv. Pulmonary trunk, aorta, common carotid, subclavian, common iliac. Structures expand out (systole) due to surging blood pressure and contract (diastole) due to relax in bp. Diseased arteries do not expand nor do they recoil: blood pressure drops to 0 during diastole.