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Name _____________________________

Date ___________________

Select the definition that most nearly defines the given word.

1.   kidney transplant    chemical messengers that help to control body functions    body system involved in removing waste products from body    replacement of a diseased or damaged kidney by a healthy donated one    waste product of many body processes, which contains one part nitrogen to two parts hydrogen. It is produced when bacteria breaks down urea.

2.   renal vein    filtering units in the kidney; 1 million in each kidney    another word for urination    blood vessel that carries blood away from the kidney    the broken down products of bile, a fat-digestion aid produced by the liver

3.   hormones    chemical messengers that help to control body functions    thin but tough membrane that surrounds the kidney    excretory organs in skin    two bean-shaped organs that filter body fluids and produce urine; act like the body's washing machines

4.   glomerulus    blood vessel that carries blood to the kidney    cavities that lead to the middle part of the kidney    a procedure to filter blood when kidneys are not working properly    group of capillaries

5.   kidneys    to release liquid wastes    ring of muscles at opening of urethra    two bean-shaped organs that filter body fluids and produce urine; act like the body's washing machines    inward curve of the kidney

6.   adrenal glands    organs in excretory system that remove carbon dioxide    glands found on top of each kidney that are not part of the excretory system    scientific name for urination (or removing urine from body)    organs that remove solid waste

7.   external urethral sphincter    middle layer of the kidney    fluid waste excreted by kidneys, commonly known as "pee"    outer layer of the kidney that contains the kidney's filtering structures    ring of muscles at opening of urethra

8.   large intestine    tubes leading from the kidney to the bladder    organs that remove solid waste    inner layer of kidney that leads to the ureter    part of the nephron where reabsorption occurs

9.   ammonia    replacement of a diseased or damaged kidney by a healthy donated one    cup surrounding the glomerulus    group of capillaries    waste product of many body processes, which contains one part nitrogen to two parts hydrogen. It is produced when bacteria breaks down urea.

10.   calyces    thick tube that goes from the bladder to outside the body    storage tank for liquid wastes    cavities that lead to the middle part of the kidney    group of capillaries

11.   Bowman's capsule    a procedure to filter blood when kidneys are not working properly    outer layer of the kidney that contains the kidney's filtering structures    cup surrounding the glomerulus    thick tube that goes from the bladder to outside the body

12.   nephrons    replacement of a diseased or damaged kidney by a healthy donated one    cavities that lead to the middle part of the kidney    filtering units in the kidney; 1 million in each kidney    the broken down products of bile, a fat-digestion aid produced by the liver