Ampulla: Functions and Types in Human Anatomy

In anatomy, an ampulla is a small, narrow cavity or chamber that is found in various parts of the body. Here are some examples of different types of ampullae and their functions:

1. Ampulla of the ear: This is a small, cylindrical chamber located in the inner ear that contains the endolymphatic sac. The endolymphatic sac is a fluid-filled space that helps to maintain the balance and position of the head.
2. Ampulla of the eye: This is a small, circular chamber located in the retina of the eye that contains the macula, which is responsible for central vision.
3. Ampulla of the pancreas: This is a small, narrow duct that connects the pancreatic duct to the common bile duct. The ampulla of the pancreas produces pancreatic juice, which helps to digest fats and proteins in the small intestine.
4. Ampulla of the uterus: This is a small, muscular chamber located in the uterus that opens into the cervix. The ampulla of the uterus is responsible for the passage of menstrual blood and fertilized eggs during pregnancy.
5. Ampulla of the fallopian tube: This is a small, narrow chamber located in the fallopian tube that connects the ovary to the uterus. The ampulla of the fallopian tube is where fertilization of the egg by sperm occurs.

In general, the term "ampulla" refers to a small, narrow cavity or chamber that serves as a site for the collection or passage of fluids or substances.