Endothelium
Contractions and relaxation of heart chambers make the blood flow inside the tubes or blood vessel.
when blood is in vessel, the blood may be black.
Cells make up the solid portion which is 45% of the blood. red blood cells, hemoglobin, whiteblood cells, and platelets.
sponge bone and marrow wich makes blood
The tunica interna of a blood vessel is a single layer of endothelium with a basal lamina.Connective tissue
Contractions and relaxation of heart chambers make the blood flow inside the tubes or blood vessel.
a portion makes a portion
Blood is red because oxygen makes contact with it.
It is called plasma, and it makes up a large portion of the blood.
Capillaries are an extremely thin walled blood vessel - they are only one cell thick, which allows for the easy exchange of gases between the blood and the body tissues. Because they are so thin however, this also makes them very fragile.
bone marrow and it's purpose is to carry oxygen to our red blood cells
Plasma comprises the fluid portion of the blood. It is a yellowish liquid that makes up about 55% of the blood volume and carries various components like water, electrolytes, proteins, hormones, and waste products throughout the body.