Get 15.2 Clinical Application for signature Sponge: Set up Cornell Notes on pg. 89 Topic: 15.2 Structure of the Heart Essential Question: What is the main difference between atria and ventricles? Text: 563-567 15.2 Structure of the Heart 2.1 Atoms, Ions, and Molecules What is the main difference between atria and ventricles? Get 15.2 Clinical Application for signature

Objective SWU: the location and function of each part of the human heart SW: create a color-coded picture bubble map of the heart

Pericardial Membranes

Pericardial Membranes Pericardium: is a covering that encloses the heart Consists of : Fibrous pericardium: tough, outer bag that protects the heart Attached to the diaphragm and sternum Parietal pericardium: inner lining of fibrous pericardium Pericardial cavity: contains fluid that reduces friction between the pericardial membranes as the heart moves within them

Pericarditis (peri-car-die-tis): An inflammation of the pericardium due to viral or bacterial infection Adhesions attach the layers of the pericardium Interferes with heart movement Very painful

Pericarditis (2m18s) 5 bullets pg. 88 https://www.youtube.com/watch?v=eCbF9G2qt80

Wall of the Heart The wall of the heart is made up of three layers: Epicardium aka visceral pericardium: protects the heart by reducing friction by secreting serous fluid Myocardium: thick layer, largely consisting of the cardiac muscle tissue that pumps blood out of the heart chambers Endocardium: innermost layer that lines all of the heart chambers and covers the structures, such as the heart valves for protection 1. 2. 2. 3.

Heart Chambers The heart is divided into four chambers. Two on the left and two on the right. Atria: The upper chambers, have thin walls, receive blood returning to the heart (sing: atrium) Ventricles: The lower chambers that force the blood out of the heart

Parts of the Heart Get the paper from the tray

Your Table will need 13 colors

Parts of the Heart: Picture Bubble-Map You will label and color-code your heart Notes will be written next to each label

Heart Chambers Superior vēna cāva & Inferior vena cava: Returns O₂-poor blood from the body to the heart Right Atrium Pumps blood R. ventricle

Heart Chambers Tricuspid valve Prevents back flow into R. atrium Right Ventricle Pumps blood  pulmonary arteries

Heart Chambers Pulmonary Valve Prevents backflow into R. ventricle Right and Left Pulmonary Arteries Take O₂-poor blood  lungs

Heart Chambers Right and Left Pulmonary veins Brings O₂-rich blood from lungs L. Atrium Left Atrium Pumps blood  L. ventricle Bicuspid aka mitral valve Prevents backflow into L. atrium

Heart Chambers Left Ventricle Pumps blood aorta Aortic Valve: Prevents backflow into the L. ventricle Aorta: Large artery that distributes O₂-rich blood to all parts of the body Descending Aorta

Heart Chambers (1m) https://www.youtube.com/watch?v=JA0Wb3gc4mE

Crash Course: Heart 7m16s 10 bullets pg. 88

Notebook Check 74: CDC’s Universal Precautions 76: 14.2 Components of blood/14.1 Clinical App 80: HIV: The Ultimate Evolver 82: Blood Typing Game/Ernie’s Exit Lab 83: Blood Typing Class Notes 84: Clinical Apps 14.3-14.4 86: Lab 42/ Clinical App 15.2 89: Heart Labeling Diagram