Applied Anatomy in Gynaecology Complete Guide for MBBS and OBG Exams
OBSTETRICS AND GYNAECOLOGY

Applied Anatomy in Gynaecology Complete Guide for MBBS and OBG Exams

Feb 22, 2026 4 min read 15 MCQs included

1. Bony Pelvis (Pelvic Osteology)

Components

  • Two hip bones (ilium, ischium, pubis)
  • Sacrum
  • Coccyx

Pelvic Types (Caldwell–Moloy)

  1. Gynecoid – Ideal for vaginal delivery
  2. Android – Funnel-shaped, obstructed labour risk
  3. Anthropoid – AP diameter longer
  4. Platypelloid – Flat pelvis, transverse diameter larger

Applied Importance

  • Pelvimetry in obstructed labour
  • Sacral promontory palpable in contracted pelvis
  • Ischial spines → landmark for station of fetal head
  • Coccyx injury during childbirth
  • Pudendal nerve block near ischial spine

2. Pelvic Floor & Perineum

Muscles

  • Levator ani (pubococcygeus, puborectalis, iliococcygeus)
  • Coccygeus
  • Perineal body (central tendon)

Applied Importance

  • Weakness → uterine prolapse
  • Injury during childbirth → cystocele, rectocele
  • Episiotomy types:

* Midline

* Mediolateral (preferred in India)

  • Perineal body damage → pelvic organ prolapse

3. Uterus

Normal Anatomy

  • Length: 7–8 cm
  • Position: Anteverted & anteflexed
  • Parts:

* Fundus

* Body

* Isthmus

* Cervix

Ligaments (Supports)

Primary Supports

  • Transverse cervical (Cardinal)
  • Uterosacral
  • Pubocervical

Secondary Supports

  • Round ligament
  • Broad ligament

Blood Supply

  • Uterine artery (from internal iliac)
  • Anastomoses with ovarian artery

Applied Importance

  • Hysterectomy → ureter lies under uterine artery ("water under bridge")
  • Fibroids commonly in body
  • Isthmus forms lower uterine segment in pregnancy
  • Retroverted uterus → dyspareunia, backache
  • Adenomyosis → thickened uterus
  • Uterine rupture risk in scarred uterus

4. Cervix

Parts

  • Ectocervix
  • Endocervix
  • Transformation zone (squamocolumnar junction)

Applied Importance

  • Most cervical cancers arise at transformation zone
  • Pap smear site
  • Cervical incompetence → mid-trimester abortion
  • Cone biopsy risk → cervical stenosis

5. Fallopian Tubes

Parts

  • Interstitial
  • Isthmus
  • Ampulla (fertilization site)
  • Infundibulum

Applied Importance

  • Ectopic pregnancy common in ampulla
  • Tubal ligation site → isthmus
  • PID → hydrosalpinx
  • Tubal block → infertility

6. Ovaries

Anatomy

  • Almond-shaped
  • Attached via:

* Ovarian ligament

* Suspensory ligament (infundibulopelvic ligament)

Blood Supply

  • Ovarian artery (from aorta)

Applied Importance

  • Ovarian torsion → acute abdomen
  • PCOS → enlarged ovaries
  • Ovarian tumors spread to peritoneum
  • High vascularity → risk of hemorrhage during surgery

7. Broad Ligament

Double layer of peritoneum containing:

  • Fallopian tube
  • Ovarian ligament
  • Uterine vessels
  • Ureter nearby

Applied Importance

  • Broad ligament hematoma
  • Ectopic pregnancy may rupture into broad ligament
  • Surgical landmark during hysterectomy

8. Urinary Bladder (Relation to Gynaecology)

  • Lies anterior to uterus
  • Separated by vesicouterine pouch

Applied Importance

  • Bladder injury during:

* Caesarean section

* Hysterectomy

  • Vesicovaginal fistula (VVF)
  • Stress urinary incontinence → pelvic floor weakness

9. Ureter

  • Crosses under uterine artery
  • Close to cervix

Applied Importance

  • Risk of injury in:

* Hysterectomy

* Radical hysterectomy

  • Hydronephrosis in cervical cancer

10. Rectum

  • Posterior to vagina
  • Rectouterine pouch (Pouch of Douglas)

Applied Importance

  • Culdocentesis
  • Endometriosis deposits
  • Rectocele

11. Blood Supply of Female Pelvis

Arteries

  • Internal iliac artery branches:

* Uterine

* Vaginal

* Internal pudendal

Applied Importance

  • Postpartum hemorrhage → uterine artery ligation
  • Internal iliac ligation to control bleeding
  • Pelvic congestion syndrome

12. Lymphatic Drainage (Very Important in Oncology)

Uterus

  • Fundus → para-aortic nodes
  • Body → external iliac
  • Cervix → internal iliac & sacral

Ovary

  • Para-aortic nodes

Applied Importance

  • Staging of cervical cancer
  • Radical hysterectomy includes node dissection
  • Ovarian cancer spreads early via lymphatics

13. Nerve Supply

Autonomic

  • Sympathetic (T10–L2)
  • Parasympathetic (S2–S4)

Applied Importance

  • Labour pain pathways:

* 1st stage → T10–L1

* 2nd stage → S2–S4

  • Pudendal nerve block in labour
  • Chronic pelvic pain syndromes

14. Vagina

Features

  • Stratified squamous epithelium
  • No glands
  • Rich venous plexus

Applied Importance

  • Site of delivery
  • Vaginal hysterectomy route
  • Bartholin cyst (at 4 & 8 o’clock)
  • Vaginal carcinoma (rare)

15. Peritoneal Reflections

  • Vesicouterine pouch
  • Pouch of Douglas (deepest point in female pelvis)

Applied Importance

  • Fluid collection in ectopic rupture
  • Culdocentesis diagnostic test
  • Endometriosis implants

16. Applied Anatomy in Common Surgeries

Hysterectomy

  • Identify ureter
  • Ligate uterine artery carefully
  • Preserve ovarian blood supply if needed

Caesarean Section

  • Incision through:

* Skin

* Rectus sheath

* Peritoneum

* Lower uterine segment

Tubal Ligation

  • Identify isthmic portion

17. Applied Anatomy in Infertility

  • Tubal patency
  • Endometrial thickness
  • Ovarian reserve
  • Uterine anomalies (septate uterus)

18. Applied Anatomy in Prolapse

  • Failure of:

* Cardinal ligament

* Uterosacral ligament

* Pelvic floor muscles

Degrees:

  1. 1st degree – descent
  2. 2nd degree – at introitus
  3. 3rd degree – complete prolapse

19. Developmental Anatomy (Important for Viva)

  • Müllerian ducts form:

* Uterus

* Fallopian tubes

* Upper vagina

  • Anomalies:

* Septate uterus

* Bicornuate uterus

* Unicornuate uterus

High-Yield Viva Points

  • “Water under the bridge” → ureter under uterine artery
  • Ampulla → fertilization site
  • Transformation zone → cervical cancer site
  • Pouch of Douglas → lowest peritoneal point
  • Para-aortic nodes → ovarian cancer spread

⚡ Interactive MCQ Quiz

MCQ Exam Mode

15 Questions
Question 1 of 15
Answer all questions then submit.

Frequently Asked Questions

Applied anatomy in gynaecology refers to the clinical application of female pelvic anatomical knowledge for diagnosis, surgical procedures, obstetrics, infertility management, oncology staging, and management of prolapse and pelvic floor disorders.
The ureter passes under the uterine artery near the cervix (water under the bridge). During hysterectomy, it is at risk of accidental ligation or injury, leading to hydronephrosis or fistula formation.
The primary supports of the uterus are the transverse cervical (cardinal) ligaments, uterosacral ligaments, and pubocervical ligaments. Weakness of these structures leads to uterine prolapse.
The ampulla of the fallopian tube is the most common site of ectopic pregnancy because fertilization normally occurs there.
Cervical cancer most commonly arises at the transformation zone, where the squamous epithelium meets the columnar epithelium (squamocolumnar junction).
The pouch of Douglas (rectouterine pouch) is the lowest peritoneal point in females. Fluid, blood, or pus accumulates here in conditions like ectopic pregnancy rupture or pelvic inflammatory disease.
Ovarian lymphatics follow the ovarian vessels to para-aortic lymph nodes, explaining early retroperitoneal spread in ovarian carcinoma.
The levator ani forms the main pelvic floor support. Weakness or injury during childbirth can lead to stress urinary incontinence, cystocele, rectocele, and uterine prolapse.
The uterine isthmus elongates and forms the lower uterine segment during pregnancy, which is the preferred site for cesarean section incision.
The cervix primarily drains into internal iliac and sacral lymph nodes, which is important in staging cervical cancer.
The suspensory ligament (infundibulopelvic ligament) contains the ovarian vessels. It is ligated during oophorectomy and is involved in ovarian torsion.
First-stage labor pain is transmitted via T10–L1 spinal segments, while second-stage pain is transmitted via S2–S4 segments through the pudendal nerve.
A septate uterus results from failure of resorption of the Müllerian septum during embryological development.
The ischial spine is a landmark used to assess fetal head station during labor and is also the site for administering a pudendal nerve block.
The uterine artery supplies the uterus and is ligated during hysterectomy or postpartum hemorrhage control. It crosses over the ureter, making anatomical knowledge critical during surgery.
Related Topics
applied anatomy in gynaecology applied pelvic anatomy female pelvic anatomy clinical relevance uterus anatomy clinical importance cervix transformation zone anatomy ovarian anatomy surgical relevance fallopian tube anatomy fertilization pelvic floor anatomy prolapse uterine artery ureter relation pouch of douglas anatomy lymphatic drainage uterus cervix ovary pelvic blood supply gynaecology hysterectomy surgical anatomy obstetrics pelvic anatomy mullerian duct anomalies
More in OBSTETRICS AND GYNAECOLOGY
Breast Anatomy Detailed Structure Blood Supply Lymphatic Drainage Clinical Correlation
Breast Anatomy Detailed Structure Blood Supply Lymphatic Drainage Clinical Correlation
ANATOMY
Postpartum Hemorrhage Causes Diagnosis and Management
Postpartum Hemorrhage Causes Diagnosis and Management
OBSTETRICS AND GYNAECOLOGY
Scalp and Face Anatomy Complete Structure Nerves Blood Supply and Clinical Correlation
Scalp and Face Anatomy Complete Structure Nerves Blood Supply and Clinical Correlation
ANATOMY
Larynx Anatomy Functions Nerve Supply Muscles Cartilages Clinical Importance
Larynx Anatomy Functions Nerve Supply Muscles Cartilages Clinical Importance
ANATOMY
Complications of Third Stage of Labour Causes Risks Prevention and Management
Complications of Third Stage of Labour Causes Risks Prevention and Management
OBSTETRICS AND GYNAECOLOGY
Malpresentation in Pregnancy Causes Types Diagnosis and Management
Malpresentation in Pregnancy Causes Types Diagnosis and Management
OBSTETRICS AND GYNAECOLOGY
Browse Specialties
Related Articles
Breast Anatomy Detailed Structure Blood Supply Lymphatic Drainage Clinical Correlation
ANATOMY
Postpartum Hemorrhage Causes Diagnosis and Management
OBSTETRICS AND GYNAECOLOGY
Scalp and Face Anatomy Complete Structure Nerves Blood Supply and Clinical Correlation
ANATOMY
Larynx Anatomy Functions Nerve Supply Muscles Cartilages Clinical Importance
ANATOMY
Popular Tags
first heart sound S1 ADHD in children complications of third stage of labour third stage of labour complications postpartum hemorrhage causes retained placenta management uterine inversion obstetrics placenta accreta spectrum active management of third stage of labour PPH prevention obstetric emergencies third stage embryology head and neck blood supply of upper limb upper limb anatomy mitral regurgitation valvular heart disease percutaneous coronary intervention pci procedure coronary angioplasty pci indications