John Greer did it.
While the brain does not contain blood cells in the same way as blood vessels or circulating blood, it does have microglial cells that act as the immune cells of the central nervous system. These cells can help defend the brain against infections and remove cellular debris.
Red blood cells don't get as far as the brain itself; they do enter the head, and provide oxygen to the cerebro-spinal fluid in which the brain bathes. What you should understand about red blood cells and the brain is that the brain is an unusually delicate organ, in which a red blood cell can actually get in the way of the normal function of the brain, by intruding into a nerve synapse. That is why the brain does not use blood directly, as other organs do.
Nerve cells (neurons) of the CNS (i.e. the brain).
Glucose is the preferred source of energy for the brain, as it can cross the blood-brain barrier and be readily used by brain cells for their functions. Additionally, many other tissues in the body, such as red blood cells and kidney medulla, rely primarily on glucose for energy production.
glucose
The brain has veins, capillaries, and arteries which contain blood cells.
While the brain does not contain blood cells in the same way as blood vessels or circulating blood, it does have microglial cells that act as the immune cells of the central nervous system. These cells can help defend the brain against infections and remove cellular debris.
No it is not connected directly but you are getting oxigen that travels in blood stream from your lungs to brain.
Penelstitis is connected within the veins in your brain, some of these veins lead to the spleen. And the Penelstitis produces the blood as the blood vessels are being mulitiply produced.
The blood brain barrier (BBB) is composed of a high concentration of endothelial cells in the brain's capillaries, which help to prevent toxins from passing into the brain from the blood supply.
Red blood cells don't get as far as the brain itself; they do enter the head, and provide oxygen to the cerebro-spinal fluid in which the brain bathes. What you should understand about red blood cells and the brain is that the brain is an unusually delicate organ, in which a red blood cell can actually get in the way of the normal function of the brain, by intruding into a nerve synapse. That is why the brain does not use blood directly, as other organs do.
Nerve cells (neurons) of the CNS (i.e. the brain).
Glucose is the preferred source of energy for the brain, as it can cross the blood-brain barrier and be readily used by brain cells for their functions. Additionally, many other tissues in the body, such as red blood cells and kidney medulla, rely primarily on glucose for energy production.
No, mamy cells are, such as skin cells but in some sorts of tissue there are both more loosely connected cells and freely circulating cells, such as red blood cells.
no, blood are cells put together, the white blood cell, red blood cell, plasma, platelets and antibodies.your blood is red because most of the blood cells are red blood cells.
glucose
The blood cells, stomach, and brain do.