capillary

small blood vessel that connects arteries to veins

thyroid

large butterfly-shaped gland in the neck

esophagus

organ which relays food to the stomach

spleen

blood-filtering organ in vertebrates

pancreas

endocrine/digestive organ in vertebrates

Wrinkle

An indented line that appears in the skin; as with age, or after being in the water, or on such animals as elephants.

freckle(s)

Marks on the skin caused by exposure to sunlight: "Jim has brown hair, blue eyes and freckles."

tumor

unusual bodily growth

breast (female anatomy)

The felinoid that Kirk fought on Nimbus III had three breasts. Breast cancer represents an important health issue for Earth women.