Final answer:
The uterus consists of three layers from the outermost to the innermost: the perimetrium, myometrium, and endometrium, each with distinct functions related to protection, muscle contractions, and preparation for pregnancy.
Step-by-step explanation:
The three layers of tissue that form the uterus from the outermost to the innermost layer are:
- Perimetrium - This is the outermost layer and is a serous membrane consisting of epithelial tissue that covers the exterior portion of the uterus.
- Myometrium - The middle layer, composed of a thick layer of smooth muscle, is responsible for the powerful uterine contractions during labor and menstrual cramps.
- Endometrium - The innermost layer, containing a connective tissue lining called the lamina propria and epithelial tissue, which thickens during the menstrual cycle in preparation for the potential implantation of a fertilized egg.
These layers function together to protect and support the functions of the uterus, including menstruation, pregnancy, and labor.