Lesson 1
Cells in a pea-sized gland
The bulbourethral glands are two tiny glands, each about the size of a pea. They sit just below the prostate, next to the urethra, the tube that carries urine out of the body.
Inside, the glands are made of little round clusters of cells. The cells are pale because they are full of mucus. A small tube carries the mucus out into the urethra.
Lesson 2
Cleaning the path
In boys and men, the urethra carries urine, and when someone grows up, it also carries sperm cells. Sperm cells carry half of the instructions (DNA) needed to make a baby.
- These cells make a clear, slippery mucus.
- It coats the inside of the urethra.
- It helps clear away traces of urine, which could harm sperm cells.
Try thisPress Release mucus on the 3D model and follow the slippery liquid out through the little tube.
Wow!These glands are among the smallest glands in the body, but they still have an important job.