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4. Uterus. Hollow, muscular, pear-shaped organ Located medially in the anterior portion of the pelvic cavity Body of the uterus (22) : upper 2/3 Cervix (5) : lower 1/3 Connects to vagina (6) Cervical orifice (24) : opening from uterus to vagina. Uterine Wall.

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4 uterus
4. Uterus
  • Hollow, muscular, pear-shaped organ
  • Located medially in the anterior portion of the pelvic cavity
  • Body of the uterus (22): upper 2/3
  • Cervix (5):
    • lower 1/3
    • Connects to vagina (6)
  • Cervical orifice (24): opening from uterus to vagina
uterine wall
Uterine Wall
  • Endometrium(20)– mucosal layer
  • Myometrium(21) - _______ layer
  • Perimetrium(23) – serosal (thin, watery-filled) layer
6 vagina
6. Vagina
  • Fibromuscular tube that extends from the uterus to the outside of the body
  • Located posterior to urinary bladder (11) and urethra (12), and anterior to rectum (14) (see Fig. 19.7 diagram)
  • Functions:
    • Conveys uterine secretions
    • Receives penis during intercourse
    • Channel for birth
vaginal wall
Vaginal Wall
  • Inner mucosal layer
    • LACKS mucosal glands
    • Mucous comes from uterine glands and vestibular glands at mouth of vagina
  • Middle muscular layer
    • Mostly smooth muscle (involuntary)
    • Bulbospongiosus muscle (voluntary) closes off vaginal orifice (7)
vaginal wall continued
Vaginal Wall, continued…..

3. Outer fibrous layer

  • Dense connective tissue
  • Attaches vagina to surrounding organs
    • Urethra (13)
    • Rectum (14)
female external accessory organs
Female External Accessory Organs
  • Labia majora
  • Labia minora
  • Clitoris
  • Vestibule
9 labia majora
9. Labia Majora
  • Enclose and protect other external accessory organs
  • Correspond to male scrotum
  • Composed of 2 rounded folds of adipose tissue, smooth muscle, and skin that lie on either side of other the other accessory organs
  • Anterior ends join to form the mons pubis
8 labia minora
8. Labia Minora
  • 2 flattened folds that lie between the labia majora
  • Join with the labia majora posteriorly
  • Merge anteriorly to form a protective, hoodlike covering around the clitoris
10 clitoris
10. Clitoris
  • Small projection at the anterior end of the vulva (the external accessory organs that surround the vaginal opening)
  • Corresponds to male penis:
    • 2 columns of erectile tissue (corpora cavernosa)
    • Glans, erectile tissue at anterior end, contains sensory nerve endings
  • So what would be its function?
vestibule
Vestibule
  • The space enclosed between the labia minora
  • Vestibular glands:
    • 2 at the opening of the vagina
    • Correspond to male bulbourethral glands (FUNCTION?)
  • Vestibular bulbs:
    • lie beneath the mucosa of the vestibule on either side
    • A mass of erectile tissue
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