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Chapter 16 Crossword

Across
Are blood vessels that return blood to the heart.
Type of cells in the blood that cause blood clots to form.
Is a microorganism that causes disease.
The male sex hormone.
A muscular elastic passageway that extends from the uterus to the outside of the body.
The female sex glands that store the ova and produce female sex hormones.
Tubes that connect the kidneys to the bladder.
The male gametes.
Down
Testicles, two small glands that secrete testosterone and produce sperm.
A yellow-green, bitter fluid important in the breakdown and absorption of fats.
The oxygen-carrying protein in blood.
Is a thick fluid containing sperm and other secretions from the male reproductive system.
Branch into smaller vessels called arterioles which deliver blood to capillaries.
Chemical substances that help regulate many of your body's functions.
The tube that leads from the bladder to the outside of the body.
The fluid in which other parts of the blood are suspended.
An external skin sac.
The windpipe.
Tube-shaped organ that extends from the trunk of the body just above the testes.
Female gametes or ova.