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Download IIII ovary -female reproductive system - Progetto e
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Female Reproductive System Ovary female gonad Functions • an exocrine gland, producing ova (gametogena function) • an endocrine gland, secreting the female hormones estrogen and progesterone androgens (endocrine function) Female Reproductive System : internal genitalia ovary Cow Ovaries paired organ sub-lumbar area caudal to the kidneys Ovaries Ovaries cow sow lamb Ovaries lateral face sow medial face Ovaries free margin (posterior margin) mesovarian margin free margin mesovarian margin Ovaries uterine extremity tubal extremity uterine extremity tubal extremity Ovaries Each ovary presents a lateral and a medial surface, an upper or tubal and a lower or uterine extremity, and an anterior or mesovarion and a posterior free border. It lies in a shallow depression, named the ovarian fossa, on the lateral wall of the pelvis; this fossa is bounded above by the external iliac vessels, in front by the obliterated umbilical artery, and behind by the ureter. The lateral surface is in contact with the parietal peritoneum, which lines the ovarian fossa; the medial surface is to a large extent covered by the fimbriated extremity of the uterine tube. The uterine end is directed downward toward the pelvic floor, it is usually narrower than the tubal, and is attached to the lateral angle of the uterus, immediately behind the uterine tube, by a rounded cord termed the ligament of the ovary, which lies within the broad ligament and contains some non-striped, muscular fibers. Ovaries The tubal extremity is near the external iliac vein; to it are attached the ovarian fimbria of the uterine tube and a fold of peritoneum, the suspensory ligament of the ovary, which is directed upward over the iliac vessels and contains the ovarian vessels. The mesovarian border is straight and is directed toward the obliterated umbilical artery, and is attached to the back of the broad ligament by a short fold named the mesovarium. Between the two layers of this fold the blood vessels and nerves pass to reach the hilum of the ovary. The free border is convex, and is directed toward the ureter. The uterine tube arches over the ovary, running upward in relation to its mesovarian border, then curving over its tubal pole, and finally passing downward on its free border and medial surface. Ovaries: ligaments mesovarium Ovaries: ligaments distal mesovarium proximal mesovarium distal mesovarium Ovaries: ligaments Ovaries: ligaments Ovaries: ligaments Ovaries: ligaments Ovarian Fimbria Ovarian Fimbria Ovaries: ligaments Mesosalpinx Fallopian tube Ovaries: ligaments Ovaries: ligaments ovarian bursa sow Ovaries: vascularization Ovaries: vascularization Ovaries: vascularization ovarian pedicle Ovaries: vascularization Schematic diagram illustrating adaptation of the ovarian and uterine vasculature to allow the retrograde and local destination transfer of ovarian hormones. (A) Reproductive organs of the pig: periovarian vascular complex in the mesovarium as area of ovarian hormones permeation from the ovarian venous and lymphatic effluent to the arterial blood supplying the ovary: (1) branches of the ovarian artery entwining the ovarian vein; (2) paraovarian lymphatic plexus; (3) precollector and collector lymphatic vessels leaving the subovarian lymphatic plexus; (4) lymphatic vessels draining lymph from the uterus; (5) lymphatic vessels running through the mesovarium towards local lymph node; (6) arterio-arterial anastomoses between the ovarian artery and uterine artery; (7) branches of the ovarian artery supplying the mesosalpinx and oviduct. (B) Reproductive organs of the ewe: periovarian vascular complex in the area of the mesovarium (for clarity of the figure lymphatic vessels and uterine venous vessels were omitted): (1) branches of the ovarian artery covered and entwined branches of the ovarian vein; (2) branch of the ovarian artery connected with the uterine artery supplying the uterus and oviduct; (3) branch of the ovarian artery supplying the oviduct and mesosalpinx. (C) Reproductive organ of the women (for clarity of the figure lymphatic vessels were omitted).
