Oral Cavity Anatomy superior labial frenulum enamel crown

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

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

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

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

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

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

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

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

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

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