HTHSCI 1H06 Midterm: Anatomy midterm review

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

Document Summary

Arch of the aorta: brachiocephalic trunk (r. common carotid, r. subclavian, l. subclavian, l. common carotid. Ascending aorta: r. & l. coronary arteries. Thoracic aorta: pericardium, esophagus, bronchi, diaphragm. Abdominal aorta: abdominal and pelvic viscera and lower extremities. Superior vena cava: head, neck, chest, upper limbs. Coronary sinus: great cardiac vein, middle cardiac vein, small cardiac vein. Inferior vena cava: abdomen, pelvis, lower limbs. Tunica intima: inner most layer: endothelium- if damaged causes problems with heart flow, basement membrane- provides structural support. Internal elastic lamina- contains holes to allow nutrients and molecules to pass. Tunica media: comprised of 3 muscle cells, this allows the arteries to contract and dilate: smooth muscle cells, elastic fibres, external elastic lamina. Tunica externa: aids in the vessels anchoring themselves to the surrounding tissue: elastic and collagen fibres, vasa vasorum- supplies oxygen and nutrients to the outer layers of the wall and surrounding tissue.