Showing posts with label Heart. Show all posts
Showing posts with label Heart. Show all posts

Tuesday, March 1, 2016

Heart Wall - Pericardium


We've learned that the heart wall's soft inner most layer is the endocardium, the second layer of muscle is the myocardium and the third protective layer is the epicardium

There is a protective bag outside the heart that is called the pericardium.
The pericardium has liquids in it, and it keeps the heart from getting shaken with every movement the body makes.


(from: wikipedia - pericardium)


Kid Facts - Blast from the past: Brachial Artery

Tuesday, February 23, 2016

Heart Wall - Epicardium


We just learned that the heart wall's soft inner most layer is the endocardium, and the second layer of muscle is the myocardium.

The next layer is called the epicardium.
This layer is a barrier to protect the heart.


(from: wikipedia - pericardium)


Kid Facts - Blast from the past: Axillary Artery

Tuesday, February 16, 2016

Heart Wall - Myocardium


We just learned about the first inside part of the heart wall called the endocardium.

The next part of heart wall is the myocardium.

This part of the heart wall has the muscles in it that squeeze together to make the heart pump the blood through the body.


(from: wikipedia - cardiac muscle)


Kid Facts - Blast from the past: Dorsal Scapular Artery

Tuesday, February 9, 2016

Heart Wall - Endocardium


We just learned about the pulmonary valve in the heart that opens for blood to go to the lungs for oxygen.

The walls of the heart are made up of different types of layers.

The inside wall of the heart is called the endocardium.
This is a thin layer that keeps the inside of the heart soft, smooth and wet, and also helps the heart send it's electrical signals all over that are part of what keeps it beating at the right time.


(from: wikipedia - endocardium)


Kid Facts - Blast from the past: Internal Thoracic Artery

Tuesday, February 2, 2016

Pulmonary Valve


We've now learned about three of the four heart valves:
The tricuspid valve between the right atrium and ventricle,
the mitral valve between the left atrium and ventricle,
and the Aortic Valve between the left ventricle and aorta.

The fourth valve is the pulmonary valve, between the right ventricle and pulmonary artery.
When the right ventricle pushes the pulmonary valve open, the blood goes from the heart to the lungs for oxygen.


(from: wikipedia - pulmonary valve)

Kid Facts - Blast from the past: Vertebral Artery

Tuesday, January 26, 2016

Aortic Valve


We've learned about the tricuspid valve between the right atrium and ventricle, and the mitral valve between the left atrium and ventricle.

Another valve is called the aortic valve which is between the left ventricle and the aorta.

This valve opens for the heart to pump blood out to all the parts of the body, and then closes so the blood doesn't leak back into the heart.



(from: wikipedia - aortic valve)


Kid Facts - Blast from the past: Subclavian Artery

Tuesday, January 19, 2016

Mitral Valve


We just learned about the tricuspid valve between the right atrium and ventricle.

Another valve is called the mitral valve and it is between the left atrium and left ventricle.

It opens to let blood flow from the left atrium into the left ventricle, and then closes so the blood doesn't flow back into the left atrium.


(from: wikipedia - mitral valve)


Kid Facts - Blast from the past: External Carotid Artery

Tuesday, January 12, 2016

Tricuspid Valve


We just learned that there are heart valves that control the flow of blood in the chambers of the heart.

One of the valves is called the tricuspid valve, which is between the right atrium and right ventricle.

When blood comes in and fills up the right atrium, the tricuspid valve opens, letting all the blood flow into the right ventricle.
Then it closes to keep the blood from flowing back into the right atrium.


(from: wikipedia - tricuspid valve)


Kid Facts - Blast from the past: Internal Carotid Artery