HTHSCI 1H06 Lecture Notes - Lecture 4: Brachial Artery, Vasa Vasorum, Smooth Muscle Tissue

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 1H06
• Professor: Peter Helli

Document Summary

From the left ventricle, the ascending aorta is seen. It has two branches off of it, the right and left coronary arteries that supply the myocardium. Abdominal aorta branches: (not super important for cardio, but learn it in. Superior vena cava drains blood from the head, neck, chest and upper limbs into the right atrium. Coronary sinus drains blood from the great cardiac vein, middle cardiac vein, and the small cardiac vein to the right atrium. Inferior vena cava drains blood from the abdomen, pelvis, and lower limbs to the right atrium. This set of veins is to help detoxify the blood before it returns to the heart to become oxygenated again. An overdose of medication or drugs will lead to liver toxicity. Arteries: carry blood away from the heart: from largest to smallest: artery -> arterioles -> capillaries. Capillaries: site of gas and nutrient exchange, and waste removal.