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Human Embryo (stage 22) Testis

Human embryo male urogenital development week 8 Carnegie stage 22.

Male gonad - (testis) sex cords developing as a precursor to seminiferous tubule differentiation.

Mesonephros - renal middle transient stage of kidney has commenced degeneration.

Selected Embryo Histology - Week 8 (Stage 22)
Selected Human Embryo Histology - Stage 22 (week 8) developing cortex labeled central nervous system and ventricles central nervous system and ventricles measured image nose and eyes eye optic nerve lens lens and pigmented epithelium lens and pigmented epithelium head region measured developing cochlea pituitary pituitary measured pituitary vertebra and spinal cord mesonephric ducts and bladder developing testis developing testis labeled developing testis developing testis labeled midgut herniation pelvic region - rectum and bladder pelvic region - rectum and bladder labeled pelvic region - rectum pelvic region - rectum labeled Aorta filled with red blood cells Lungs and thymus Dorsal aorta Placental blood vessels
Links: Carnegie stage 22 \| Week 8