BIO310H5 Lecture Notes - Lecture 13: Tunica Externa, Tunica Media, Stroke Volume
Document Summary
Contraction of right ventricle faces restriction by lung. Diastolic is the relaxation of the ventricle. Blood filling ventricle during diastolic is the edv which is ejected, but it wont be emptying the ventricle, there will be some leftover blood in the system called the esv. To calculate cardiac output we need a value known as the stroke volume. We started from edv and esv, the blood within ventricles. Filled in diastolic volume, then left over. The stroke volume is diff between edv and esv. We will multiply stroke v by heart rate, which gives us the cardiac output. Cardiac output is pumped per unit time. Heart rate is the number of beats you feel, each contraction is one heart beat, giving one stroke volume. Capillaries of venus will form a venules. Large artery and vein are similar in diameter, however the wall of the large artery is thicker compared to vein.
