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

Tuesday, January 5, 2016

Heart - Valves


We just learned about how the blood flows through the ventricles, atriums, veins and arteries.

In between each of these areas is something called a valve which opens and closes to let the blood out or keep it in.


(from: wikipedia - heart valve)


Kid Facts - Blast from the past: Common Carotid Artery

Tuesday, December 29, 2015

Heart - Blood Flow


We've now learned about all of the arteries and veins that pump blood all over the body.

The part of the body that does the pumping is the heart, which has 4 chambers that we've already learned about.

Deoxygenated blood comes into the Right Atrium and then goes to Right Ventricle.
The Right Ventricle pushes the blood to the lungs to get oxygen, then the oxygenated blood comes into the Left Atrium.
The blood then goes into the Left Ventricle which sends the blood to all parts of the body, and it comes back to the Right Atrium where we started.

So it goes Right Atrium, Right Ventricle, Lungs, Left Atrium, Left Ventricle, Body, Right Atrium.

(from: wikipedia - heart)


Kid Facts - Blast from the past: Aortic Arch

Tuesday, December 15, 2015

Right Ventricle


We just learned that the right atrium fills up with deoxygenated blood from the body.

After that the blood goes into the right ventricle which pumps the blood out of the heart and over to the lungs to get filled up with oxygen.


(from: wikipedia - ventricle (heart))


Kid Facts - Blast from the past: Aorta

Tuesday, December 8, 2015

Right Atrium


We just learned about the jugular vein that brings deoxygenated blood from the head and neck down toward the heart.

All of the arteries in the push blood away from the heart, and all of the veins bring blood back toward the heart.

We learned about the superior and inferior vena cava that brings blood back into the heart.
That goes right into the right atrium a chamber in the heart that fills up with deoxygenated blood.


(from: wikipedia - atrium (heart))


Kid Facts - Blast from the past: Left Ventricle

Tuesday, December 16, 2014

Aorta


We've learned that oxygenated blood goes comes into the heart at the left atrium which is part of the heart, and then goes to the left ventricle which pushes the blood to all the parts of your body.

The big tube that the left ventricle pushes the blood to first is called the aorta.

The aorta is a big long tube that goes up from your heart, then turns and goes downward all the way down to your hips area.

(from: wikipedia - aorta)


Kid Facts - Blast from the past: Levator Lip Muscles

Tuesday, December 9, 2014

Left Ventricle


We've learned that oxygenated blood goes from the pulmonary veins to the left atrium which is part of the heart.

The left atrium sends the blood into a large area of the heart called the left ventricle.

The left ventricle takes in all of the fresh blood full of oxygen, and pushes it all the way out to every part of your body.
From the tips of your toes to your fingers and ears, the blood carrying the oxygen that your body needs is pumped out by the muscles of the left ventricle.

(from: wikipedia - ventricle (heart))


Kid Facts - Blast from the past: Procerus Nose Muscle

Tuesday, December 2, 2014

Left Atrium


We've learned that our blood gets filled up with good oxygen in the capillaries by the lungs, and then goes through tubes called the pulmonary veins toward the heart.

The oxygen filled blood, sometimes called oxygenated blood, enters the heart at a place called the left atrium.

The heart is divided up into four parts, called chambers, and the atrium is one of those chambers.

(from: wikipedia - left atrium)


Kid Facts - Blast from the past: Tongue