This immune cell produces antibodies that attach to pathogens.
What are B-cells?
These are made when arrector pili muscles contract, bring the hair into an upright position.
What are goose bumps?
Each of these structures contains up to a half a mile of tiny tubules.
What is the teste?
These conditions are caused by the immune system attacking the body's own cells.
What is autoimmune?
In season 2, x-ays showed that a patient had swallowed ten of these.
What are doll heads?
What are nerves?
This rise in temperature after infection is aimed to slow the division of bacteria and viruses.
What is a fever?
This organ is lined with up to 25,000 finger-like sponges per square inch.
What is the Small Intestine?
This type of disease is caused by an organism or virus that invades the body.
What is infectious?
In season 9, doctors had to figure out how to get this organ back into a child's body after he was born with it on the outside.
What is his brain?
This organ helps regulate heat, provide sensory information, and protect the body.
What is skin?
This describes the brain's ability to make new synaptic connections to retain learning or to make up for damaged connections.
What is neuroplasticity?
If the 2 million nephrons of this organ were laid end-to-end, they'd reach approximately 10 miles.
What is the kidney?
What is inflammation?
In season 14, Dr. Grey figures out how to grow miniature versions of this organ.
What are livers?
These are the unit of contraction in a msucle.
What is a sarcomere?
This is how oxygen, carbon dioxide, water, and other substances move across cell membranes.
What is diffusion?
You produce enough of this enzyme filled liquid to fill two bathtubs a year.
What is saliva?
Several conditions are caused by mutated versions of this protein "glue".
What is collagen?
In season 2, a couple who experienced a train crash came into the ER with this item impaled into both of their bodies.
What is a pole?
This is the location of blood formation in the body.
What is the bone marrow?
This process allows the body to release energy stored in food.
What is cellular respiration?
You replace the outer layer of this every month.
What is your skin?
Many degenerative neurological conditions are caused by missing or flawed versions of this material.
What is myelin?
In season 16, doctors figure out that Dr. Webber does not have dementia, but rather cobalt poisoning from this artificial replacement body part.
What is a hip?