1. 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:
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

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

3. Pericardial Membranes

4. 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

5. 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

6. Pericarditis (2m18s) 5 bullets pg. 88

7. 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.

8. 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

9. Parts of the Heart
Get the paper from the tray

10. Your Table will need 13 colors

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

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

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

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

15. 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

16. 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

17. Heart Chambers (1m)

18. Crash Course: Heart 7m16s
10 bullets pg. 88

19. 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 : Lab 42/ Clinical App : Heart Labeling Diagram