Cardiovascular System: General Circulation & Heart Comparative Anatomy Tony Serino, Ph.D. Biology Department Misericordia Univ.
General Circulatory System Cardiovascular Consists of a closed system of vessels which transport blood Two circuits: Systemic and Pulmonary Arteries move blood away from the heart Veins move blood toward the heart
General Circulatory System Lymphvascular –moves lymph Consist of blind end tubes which collect interstitial fluid (now called lymph) and returns it to circulation The lymph is cleaned before returned to the blood vessels
Heart as a Dual Pump Cardiac muscle arranged as whorls that squeeze the blood Twin pumps: systemic and pulmonary Four chambers: 2 atria and 2 ventricles
Cardiac Muscle Cells
Heart Development
Heart: Location
Layers of the Heart and Pericardium
Heart: Anterior View
Heart: Posterior View
Heart: Internal Anatomy
Differences in Ventricular Wall
Coronary Arteries
Angioplasty Fig. 12.66 12.66.jpg
Coronary Veins
Major Cardiac Valves
Heart Murmurs 12.22.jpg
Diastole: Period of Ventricular Filling
Systole: Isovolumetric Contraction
Systole: Ventricular Ejection
Diastole: Isovolumetric Relaxation
Conduction System of Heart