1. Heart Anatomy
By: Heidi Hisrich

2. Orientation
Which side is left?
Which side is left?

3. External Anatomy—panel 1
Aorta
Pulmonary arteries
Pulmonary veins
Superior Vena Cava
Left atrium
Coronary Artery—”feeds” the heart itself (can only see from anterior/front view), coronary means “crown/wreath” and surrounds heart like a crown
Right atrium
Inferior Vena Cava
Left ventricle
Right ventricle
Apex (from Latin, “point/tip,” points toward left)

4. Prep for HW and then add flow as Mrs. H goes through it in class

5. Left side: Systemic Pump Right side: Pulmonary Pump
Heart Flow—panels 2-3
Video showing blood flow 3D animation Really corny video quiz—test yourself
Left side: Systemic Pump
Right side: Pulmonary Pump

6. Heart Structures—panels 4-5
To make the
booklets, use
4 half-sheets
of paper, cut
hamburger
style

7. Booklet insides Left side style Right side style
To make the shutters, use 4 half-sheets
of paper, cut hamburger style. Then fold them into shutters. Leave shutters as are on 2 of them (for right side booklets) and cut into 4 pieces on the other 2 for left side booklets). Wait to label (see next 2 slides)
Booklet insides
Left side style
Right side style

8. Page 4 Heart Structures—shutter labeling
Chambers
Valves
I chose to use pink/red to color code right side structures and blue for right ones. That is optional, but encouraged to show which structures hold oxygenated blood.

9. Page 5 Heart Structures
Veins
Arteries

10. Chambers
How many?
FOUR (in humans)
Job
Hold blood

11. Atria How many? Job TWO Receive blood
Etymology: from Latin atrium "central court or main room of an ancient Roman house, room which contains the hearth”
How many?
TWO
Job
Receive blood

12. Right atrium
Job
Receives blood from whole body (blood that lacks oxygen)

13. Left atrium
Job
Receives blood from lungs (that picked up oxygen)

14. Ventricles
Etymology: From Latin word meaning “belly,” they make up most of the open/hollow portion of the heart
Job
Push blood out of heart (surrounded by muscle to help squeeze it out)

15. Right ventricle
Job
Send blood to lungs (less muscle needed because lungs are right next to the heart!)—sends it there to get oxygen

16. Left ventricle
Job
Send blood to WHOLE BODY to deliver oxygen and nutrients

17. Valves How many? Job FOUR Prevent backflow of blood
Go here for info about valves and a good video about why they are necessary

18. Tricuspid Valve Etymology: Tri means 3 and cusp means points Job
Allows blood to flow from RA to RV and not to flow back into RA

19. Pulmonary Valve
Etymology: From Latin “pulmo,” meaning lungs—blood passing through this valve is headed to the lungs!
Job
Allows blood to flow from RV into pulmonary artery and not flow back into RV

20. Bicuspid (Mitral) Valve
Etymology: Bi means 2 and cusp means points
Job
Allows blood to flow from LA to LV and not to flow back into LA

21. Aortic Valve Etymology: From Latin “to raise” Job
Allows blood to flow from LV into aorta and not flow back into LV

22. Veins Job Carry blood TO HEART
While MOST carry blood lacking oxygen, not ALL do, so that is NOT a defining feature of veins

23. Vena Cavas Job Carry blood to the RIGHT SIDE of the heart
SUPERIOR (meaning “above” carries it from the upper body—arms and head)
INFERIOR (meaning “below” carries it from the lower body—abdomen and legs)

24. Pulmonary Veins Job Right pulmonary vein Left pulmonary vein
Carry blood from lungs to LA (remember, pulmonary means lungs and veins come TO THE heart)
What’s strange?
THEY ARE THE ONLY VEINS THAT CARRY BLOOD WITH OXGYEN
Right pulmonary vein #4
Left pulmonary vein #6

25. Pulmonary Arteries Job Right pulmonary artery Left pulmonary artery
Carry blood to lungs from RV (remember, pulmonary means lungs and arteries lead FROM THE heart)
What’s strange?
THEY ARE THE ONLY ARTERIES THAT CARRY BLOOD LACKING OXGYEN
Right pulmonary artery #1
Left pulmonary artery #3

26. Aorta
Job
Carries blood leaving heart to whole body (branches into many smaller arteries to do so)

27. Veins vs. Arteries Veins Arteries Must prevent blood from backing up
Have tiny valves
Arteries
Must withstand high pressure
Have thick walls

28. Heart Dissection
Can you use what you’ve learned to interpret a REAL heart?? (this goes onto panel 6)