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Understanding Human Anatomy: Oral & Reproductive Systems

Dive into the intricacies of the oral cavity, tooth anatomy, small intestine, villus structure, spermatogenesis, meiosis, sperm anatomy, uterus anatomy, ovarian cycle, fetal circulation, and embryonic development.

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Understanding Human Anatomy: Oral & Reproductive Systems

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  1. Oral Cavity Anatomy enamel superior labia superior labial frenulum crown dentin pulp cavity hard palate soft palate gingiva uvula cementum periodontal ligament palatine tonsil root root canal lingual frenulum alveolar fossa inferior labial frenulum inferior vestibule (between labia and teeth) Tooth Anatomy

  2. circular muscle lumen of small intestine Small Intestine Anatomy villi longitudinal muscle plicae circulares serosa (visceral peritoneum) mucosa submucosa muscularis externa plicae circulares

  3. Villus Anatomy microvillus simple columnar epithelial cell goblet cell lacteal capillaries Intestinal crypt venule lymphatic vessel arteriole

  4. Diploid (2n) to haploid (n) Spermatogenesis & Meiosis Spermatogonia (2n) sustentacular cell nucleus sustentacular cell tight junction primary spermatocyte (2n) Meiosis I secondary spermatocyte (n) Meiosis II yellow cytoplasm of sustentacular cells early spermatids (n) Late spermatids (n) Immature sperm (n)

  5. spermatic cord Sperm & Testis nerves & blood vessels tail vas (ductus) deferens head of epididymis seminiferous tubules Sperm septa rete testis Midpiece with mitochondria body of epididymis tunica albuginea interstitial cells nucleus containing DNA (haploid) head covered with acrosome

  6. Uterus Anatomy Diagram uterine (fallopian) tube suspensory ligament ovarian ligament fimbriae fundus mesovarium perimetrium ovary endometrium myometrium round ligament cervix broad ligament (mesometrium) vagina

  7. follicle stimulating homone Ovarian CycleDiagram Secondary Follicle lutenizing hormone primary oocyte progesterone estrogen zona pellucida corona radiata granulosa cells ovulation antrum corpus luteum primordial follicle primary follicle Graafian follicle (mature) secretory proliferative menstrual

  8. Fetal Circulation Anatomy ductus arteriosus foramen ovale ductus venosus umbilical vein umbilicus umbilical arteries umbilical cord placenta

  9. 4 cell stage Preembryonic Fission cleavage fertilization morula zygote blastocyst antrum (cavity) ovulation inner cell mass trophoblast implantation

  10. b j Gastrulation Diagram g f a e i h c d maternal portion

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