Cardiovascular System 1

• Science

Do you guys remember what the 5 types of blood vessels are? List them all

All blood vessels have three primary layers 

Intima

Media

Adventitia

The walls of a blood vessel is smooth, allowing undisturbed blood flow. The innermost layer of a blood vessel (the intima) is lined with endothelial cells, which are in direct contact with blood.

The internal elastic lamina acts as a barrier between the intima and the underlying media aka "tunica media." 

The media consists of multiple layers of smooth muscle cells which controls the length of the blood vessel by contracting or relaxing in response to neural signals. 

The outermost layer is the adventia, which has connective tissue and also has nerves and small blood vessels supplying the artery itself.

The veins and arteries both contain these 3 layers but, the vein’s layers are much thinner than the artery’s.

Which is the innermost layer of blood vessels

1. Media
2. Intimia
3. Lamina
4. Adventia

What are the layers of the Blood Vessels?

1. Intimia
2. Media
3. Pendia
4. Adventia

Does anyone know what cells fill the lining of the heart?

Body Cells

Heart cells

Cardiac Cells

Endothelial Cells

Pymonoliel Cells

Endothelial Cells

Endothelial cells with are the main cells found in the lining of blood vessels, lymph vessels and the heart

These cells provide an active, dynamic interface between the bloodstream and the wall in the artery

One of their main functions is to provide a semi-permeable barrier that oversees the exchange of fluid, nutrients, gases, and waste between blood and tissues

Endothelial cells also provide an unique surface that allows the cellular elements of the blood to flow without sticking to the blood or lymph vessel walls

What are they

1. Semi-permeable
2. Permeable
3. Not Permeable
4. idk

The Walls of the heart are composed of the following

Outer epicardium

Myocardium

Endocardium

The myocardium consists of thick bundles of cardiac muscle twisted together in an ringlike way. This is the layer that The heart contracts in

The endocardium is a thing, glistening sheet of endothelial cells that line the chambers

The epicardium is a that forms the innermost layer of the pericardium 

the membrane inside the heart, consisting of a outer layer full of fiber and an inner double layer of membrane.

fibrous pericardium, the parietal pericardium, and the visceral pericardium

But I am not going to get into that

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