Reproductive

Change blood volume, breathing depth, and kidney filtration. Connect each visible change to a lab result, then separate expected adaptation from warning signs.

Compare vaginal, cervical and upper-tract infections using microscopy, anatomy and test timing to choose treatment, partner care and follow-up.

Trace abdominal aortic branches into gut, renal, gonadal, pelvic, and limb territories, then apply the anatomy to ischemia, surgery, and aneurysms.

Locate a vulvar mass, distinguish a painless duct cyst from an abscess, choose durable drainage, and recognize when a new mass requires biopsy.

Trace fetal hormone pathways, compare androgen response with DHT production, and explain puberty using visual models and original clinical practice.

Trace placental physiology and antiangiogenic injury, diagnose and stabilize preeclampsia and HELLP, plan delivery, and guide postpartum prevention.

Recognize ectopic pregnancy without overcalling an early empty uterus, interpret serial hCG, and choose observation, methotrexate, or surgery safely.

Work through primary amenorrhea with anatomy, hormone feedback, responsive visual models, and original cases that explain the next useful clinical step.

Connect placental position, separation, maternal-fetal physiology, safe workup, delivery route, hemorrhage care, and accreta-spectrum planning.

Separate routine cervical screening from abnormal-result management, connect HPV biology to dysplasia, and choose surveillance or treatment using patient risk.

Understand PCOS through hormone binding, ovulation, and endometrial protection, then apply diagnostic criteria and choose treatment by patient goals.

Match contraceptive mechanisms, bleeding effects, medical eligibility, and daily demands to patient goals, then handle missed pills and emergency contraception.

Breast neoplasms for the boards. Fibroadenoma, fibrocystic change, ductal vs lobular carcinoma, Paget disease, and receptor status, in an interactive comparison.

Placenta accreta for clinical practice: the defective decidual layer, abnormal villous adherence, prior C-section risk, and postpartum hemorrhage, with interactive obstetric pathology.

Umbilical cord vessels for clinical practice: two arteries carrying deoxygenated blood and one vein carrying oxygenated, the single-artery association, with interactive fetal circulation.

Varicocele for clinical practice: the dilated pampiniform plexus, the left-sided bag of worms, the renal vein drainage reason, and the infertility link, with interactive anatomy.