Anatomy study note · Pelvis

Uterus

A hollow, pear-shaped, thick-walled muscular organ about 8 × 5 × 2.5 cm in the young nulliparous adult, where the fertilized ovum is received, retained and nourished.

Key points

• Fundus, body, cervix; internal and external os.
• Normally anteverted + anteflexed.
• Uterine artery crosses OVER the ureter near the cervix.
• Lymph: fundus → para-aortic; body/cervix → iliac; round ligament → inguinal.
• From fused paramesonephric ducts.
• Bicornuate / unicornuate uterus.
• Functional layer (coiled arteries) is shed; basal layer (straight arteries) regenerates it.
• Proliferative (oestrogen) → secretory (progesterone).

The full note in the atlas also covers

Relations · Features · Blood supply · Nerve supply · Lymph drainage · Histology · Development · Clinical notes

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 9, PDF pp. 1126–1136
• Inderbir Singh’s Human Embryology, ch. 16, PDF pp. 291–293
• BRS Cell Biology & Histology, 7th ed., ch. 19, PDF pp. 350–353

More from the pelvis

• Vagina
• Coccygeus
• Coccyx
• Hip bone
• Internal iliac artery
• Internal iliac vein
• Levator ani
• Ligaments of the uterus
• Obturator internus
• Obturator membrane
• Obturator nerve
• Ovary

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