The concave shape of red blood cells maximises the surface area for gaseous exchange of carbon dioxide and oxygen. It perfectly holds 4 haemoglobin molecules, each of which works to store and release oxygen when needed. The importance of its' shape is exemplified by the genetic disease sickle cell anaemia, whereby misshapen red blood cells (called sickled cells) can no longer carry oxygen in the same way and can become lodged in small capillary blood vessels - which can kill.
Additionally, they are very durable and able to squeeze in and out of capillaries to reach every part of the body whilst maintaining a large surface area for exchange. Cells which loose this elastic property are removed by the spleen and liver.
Well if you think about it xylem are the thick secondary cell walls, often deposied unevelny in a coil-like patter so that they may stretch so if you can figure way to see how its related to now then it's good *
It's structure is a series of long tubes, blood vessels, and that helps their function which is to transport blood.
Venules- Drains blood from capillaries into veins, for return to the heart == ==
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Flat disk like shape alloes it to carry more oxygen and carbon dioxide around the body.
it look likes a branch of trees
you
Blood vessels are found throughout the body.
The same as a humans blood vessels, to take blood to the heart.
The five main parts are the arteries, capillaries, veins, heart and most people don't count blood but blood is also one!
Central (Haversian) Canal is the canal that runs through the core of each osteon.
Body structure is studied system by system. For example, when studying the cardiocascular system, you would examine the heart and blood vessels of the entire body.
Nails
The epidermis has no blood vessels.
The heart, the blood and the blood vessels.
veins are large, thin-walled blood vessels that carry blood to the heart!!!!
cartilage
allantois
Capillary
dont fricken know
They have hearts with blood vessels that pump the blood to the rest of their body
Edwards Crisp has written: 'A treatise on the structure, diseases, and injuries of the blood-vessels' -- subject(s): Diseases, Blood-vessels
No. Not by themselves. They will be inside the tiny blood vessels.
both are used for the conduction of the useful materials needed for the body