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☆☆☆☆☆Alveoli are small air sacs in the lungs, as small as a grain of sand. There are billions of these in the lungs, and the purpose of these alveoli are to supply de-oxygenated blood with a supply of oxygen through gas exchange. They are well-equipped to do this, as well. The first reason is because the cappillaries that the alveoli are supplying with oxygen are spread all over the outside of them, meaning there is more surface area to perform gaseous exchange on. The second reason is because the alveoli walls are only one cell thick, meaning the oxygen only has two cells to go through, the alveoli wall, and the capillary wall.
carries oxygen rich blood from the lungs to the heart
The endocrine system affects cells with certain receptors .
The nervous system can affect only nearby cells
Red blood cells coagulate wounds; white blood cells defend against bacteria.
The tissue formed once mitosis of an OVUM
A few days after fertilization. apex:)
Inflammation and fever are nonspecific immune system reactions.
if a woman is breastfeeding her child, it is healthier for her child if her bc contains progesterone, rather than estrogene.
progesterone controls the release of eggs
The immune system must attack the bodys own cells
One gland causes calcium ions to be released; another gland causes them to be absorbed
Patient safety
Red and white blood cells are formed in the bone marrow, so disorders of the marrow can cause blood disorders.
eyes develop
lips start to form
Vocal cords develop.
A person with AIDS would be more in danger from the common cold because their immune system is not as strong as someone without AIDS. AIDS is what is known as an auto-immune disorder. This means that any type of infection could possibly lead to death because the body cannot fight it off.
If it is the fatter bone in the leg, then it is the tibia
it makes the body create memory cells for future infections
