26 terms

HCA Apologia General Science - Module 15

Lymphatic system
Removes excess fluid from your body's tissues and returns it to the bloodstream
A group of cells that prepare and release a chemical for use by the body
White blood cells found in the lymph system
Lymphocytes that produce antibodies that attack specific disease-causing microorganisms
Lymphocytes that attack microorganisms directly
A weakened or inactive version of a pathogen that stimulates the body's production of anti-bodies that can destroy the pathogen
Urinary system
Controls the amount of water you retain, as well as the levels of the many substances in that water
Renal artery
Brings blood into the kidney
Filters the blood while in the kidney
Renal Vein
Takes blood back to the heart from the kidney
Renal pelvis
Area through which excess water and chemicals that were not reabsorbed into the blood flow out of the kidney
Where the urine is held
Where the urine leaves the body
A chemical messenger released into the bloodstream that sends signals to distant cells, causing them to change their behavior in specific ways
One of the main regulators of the endocrine system. It controls the pituitary gland.
Pituitary gland
Referred to as the "master endocrine gland" because the hormones that it makes and sends into the bloodstream control many other endocrine glands
Thyroid gland
Primarily affects the basal metabolic rate
Parathyroid gland
Regulates the level of calcium in the body
Thymus gland
Releases a hormone which stimulates the development of the white blood cells (T-cells)
Adrenal gland
Produces coritsol, which causes the liver to release more glucose so there is plenty of energy available to the body
Produces insulin that enables glucose to enter the cells so that it can be burned
Blood enters the kidney through the renal artery. Then ...
... the blood is filtered.
After the blood is filtered in the kidney ...
... water, nutrients, and chemicals travel through a nephron.
In the nephron ...
...cells absorb specific amounts of chemicals and water back into the blood.
After absorption ...
... excess water and chemicals go into the renal pelvis, through the ureter, and into the bladder.
The final step in the kidneys ...
...cleaned blood leaves through the renal vein and travels back to the heart.