What are part of the female internal genitalia?

Answer 1

• This is the female organ of copulation and is a fibromuscular tube or sheath lined with stratified squamous epithelium.

• It forms the inferior portion of the female genital tract and the birth canal.

• It extends from the cervix of the uterus to the vestibule of the vagina.

• The vagina communicates superiorly with the cervical canal and opens inferiorly into the vestibule of the vagina.
• In the anatomical position, the vagina descends anteroinferiorly.

• Its anterior and posterior walls are normally in apposition, except at its superior end where the cervix of the uterus enters its cavity.
• The posterior wall is about 1 cm longer than the anterior wall and is in contact with the external uterine ostium (external os).

• The vagina is located posterior to the urinary bladder and anterior to the rectum and passes between the medial margins of the levator ani muscles.

• It pierces the urogenital diaphragm with the sphincter urethrae muscle.
• The posterior fibres of the sphincter urethrae muscle are attached to the vaginal wall.

• The cervix of the uterus projects into the superior partof the anterior wall, separating the walls of the vagina.
• The uterus lies almost at a right angle to the axis of the vagina (anteverted position). This uterine angleincreases as the urinary bladder fills.

• The vaginal recess around the cervix is called the fornix (L. arch).
• It is divided into anterior, posterior, and lateral parts.
• The posterior part of the fornix is the deepest and is related to the rectouterine pouch.