1. Title: Anat & Phys 4/5/07 Objectives: Class Topics . Fetal Heart
7/17/2019
Title: Anat & Phys 4/5/07
Objectives: .
Class Topics
Fetal Heart
Heart physiology
Heart coloring
“There are two types of teachers; the kind that fill you with so much quail shot that you can’t move, and the kind that just gives you a little prod from behind and you jump to the skies.”
Robert Frost
Wednesday, July 17, :03 PM

2. Class Assignments Heart coloring 4/11/07 Heart coloring W.S. 4/11/07
7/17/2019
Class Assignments
What
By When
Heart coloring 4/11/07
Heart coloring W.S. 4/11/07
Heart test 4/13/07
Due this class period
Due next class period
Due in the future

3. Fetal Heart Foramen ovale Ductus arteriosus
7/17/2019
Fetal Heart
Foramen ovale
hole between the right and left atrium
Ductus arteriosus
blood vessel between the pulmonary trunk and aorta
Both of the above close when the first breath is taken
change of pressure

4. Cardiac Muscle Can beat on its own Intercalated discs
7/17/2019
Cardiac Muscle
Can beat on its own
If two fibers touch, they beat together
Intercalated discs
Allow for electrical transfer to other cells.

5. 7/17/2019
Heart Physiology
Each beat is stimulated by an area in the right atrium near the superior vena cava called the Sinoatrial Node (SA Node).
SA Node is innervated by the autonomic nervous system
Pacemaker of the heart
Stimulates both atria to contract

6. 7/17/2019
Heart Physiology
SA Node sends impulse to the AV (atrioventricular) Node.
Located in the interatrial septum
Holds impulse for a short time (milliseconds) and passes electrical impulse to AV Bundle (Bundles of His)
AV Bundles passes impulse to Purkinje fibers which stimulates the ventricles to contract

7. FromL http://www.personal.dundee.ac.uk/~jrelliot/HTML1/heart.htm
7/17/2019
FromL

8. List of things to color Right atrium left atrium right ventricle
7/17/2019
Right atrium
left atrium
right ventricle
left ventricle
myocardium
epicardium
endocardium
oxygenated vessels
deoxygenated vessels

9. 7/17/2019 5

10. 7/17/2019 25

11. 7/17/2019
Blood flow
Deoxygenated blood enters the heart from the inferior vena cava, superior vena cava, and the coronary sinus
From rt atrium to rt ventricle through the tricuspid valve
From rt ventricle to pulmonary trunk through the pulmonary semilunar valve

12. 7/17/2019
Blood flow
From the pulmonary trunk to the rt and left pulmonary arteries to the lungs
Oxygenated blood returns from the lungs in the pulmonary veins to the left atrium
From the left atrium to the left ventricle through the bicuspid valve

13. 7/17/2019
Blood flow
From the left ventricle to the aorta through the aortic semilunar valve
From the aorta to the rest of the body
Back to the right atrium through the inferior vena cava, superior vena cava, and coronary sinus

14. 7/17/2019
Link
Gateway Community College

15. 7/17/2019
From:

16. 7/17/2019
From: