KN 2431 Cardiovascular System Ch 8

Endocardiummembranethatlinesfour chambersofheart

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: pump that circulates blood to entire body via vascular system Pericardium: protective sac around the heart 3 layers: – Endocardium: membrane that lines four chambers of heart – Myocardium: muscular layer of heart – Epicardium: outermost layer of heart 4 chambers Heart Heart – R/L atrium – R/L ventricle Valves: – – – – Tricuspid Pulmonary Mitral Aortic Blood Flow: – Vena Cava, R atrium, R ventricle, pulmonary a., pulmonary v., L atrium, L ventricle, aorta Blood Supply to Heart Blood Supply to Heart Heart cannot utilize the blood flowing through the heart Has its own system: – Coronary Artery System: Branches off of aorta R/L coronary artery Sequence of Conduction Sequence of Conduction SA Node (Pacemaker) 2. AV Node 3. Bundle of His 4. Perkinje fibers 1. Pulse & BP Pulse & BP Pulse: Expansion & contraction of an artery produced by pressure of blood moving though Blood Pressure: Measurement of pressure exerted against vessel walls – Systolic: highest pressure result of ventricular contraction – Diastolic: lowest pressure w...
View Full Document

Ask a homework question - tutors are online