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Histology and Functions

Histology and Functions. Of the OVARY. What does Histology mean? Histology is the study of the microscopic structure of tissues. What are Ovaries? Are reproductive organs that produces ova and, in vertebrates, estrogen and progesterone.

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Histology and Functions

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  1. Histology and Functions Of the OVARY

  2. What does Histology mean? Histology is the study of the microscopic structure of tissues. What are Ovaries? Are reproductive organs that produces ova and, in vertebrates, estrogen and progesterone.

  3. This shot shows some of the different areas of the ovary that are being studied.

  4. Structure of an Ovary

  5. The Ovary Ovaries also have an endocrine function - they release oestrogenand progesterone. The ovaries are small almond shaped structures, covered by a thick connective tissue capsule - the tunica albuginea. This is covered by a simple squamous mesothelium called the germinal epithelium. The ovary has a cortex, which is where the ovarian follicles can be found, and a highly vascular medulla, with coiled arteries called helicrine arteries. The oocytes are surrounded by epithelial cells and form follicles. The ovary contains many primordial follicles, which are mostly found around the edges of the cortex. There are fewer follicles in different stages of development.

  6. Ovarian Follicles Primary Follicle Secondary Follicle

  7. Ovarian Follicles continued.. Graffian follicle Corpus Luteum

  8. Corpus albicans

  9. < 1st primary follicle ^ primordial follicle < 2nd primary follicle

  10. There are 2 main functions of the ovaries : They produce gamete (oocytes) as well as the production of the hormones progesterone and estrogen. The ovaries are made of Tubular poles which are connected to the suspensory ligament and a uterine pole which connects to the uterus via the proper ligament of the ovary. An external cortex and internal medulla which is rich in CT, lymph, a/v also can be found here. Both hormones (progesterone, estrogen) play key roles in the menstrual cycle.

  11. Stages of Follicle Maturation

  12. References http://www.histology-world.com/factsheets/ovary1.htm (slide 4) http://www.histology.leeds.ac.uk/female/FRS_ovarian_fol.php (slide 5,6,7,8) http://anatomytopics.wordpress.com/2009/01/01/31-the-anatomy-histology-and-development-of-the-ovary/ (slide 9)

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