Basic Anatomy for Basic Science Examination of OB GYN resident

1. Basic Anatomy
for
Gynecologists

2. Systematic Orientation
 Abdominal Wall
 Perineum & Pelvic Floor
 Pelvic Viscera
 Important Vessels, Nerves, and
other structures

3. The Abdominal Wall
 Abdominal Wall Layers
 Skin
 Subcutaneous Tissue
 Musculoaponeurosis
 Transversalis fascia
 Peritoneum

4. Skin & Subcutaneous Tissue
 Skin
 Transverse fiber in dermal layer
(gently curving concave upward
line)
 More tension on the skin of a
vertical incision

5. Skin & Subcutaneous Tissue
 Subcutaneous tissue
(fat globules+fibrous septa)
 Camper fascia
 Superficial, fat predominates
 Scarpa fascia
 Deeper, fibrous tissue
predominates
 Best developed laterally

6. Musculoaponeurotic Layer
 Hold viscera in place & control
movement of torso
 Compositions
 Muscles
 Vertical muscles
• Rectus abdominis
• Pyramidalis
 Oblique muscles
• External oblique
• Internal oblique
• Transverse abdominal
 Aponeurosis: Rectus sheath or
rectus fascia

7. สิ่งที่เป็นจริง
 ให้ตัวอย่างหรือเหตุการณ์ที่เป็นจริง
 แสดงความเห็นด้วยหรือสนับสนุนต่อ
สถานการณ์ของผู้ฟัง ถ้าเป็นไปได้และ
เหมาะสม

9. External oblique
External oblique
Internal
oblique
Internal
oblique
Transversus abdominis
Transversus abdominis
Above arcuate line
Below arcuate line

11. Transversalis fascia &
Peritoneum
 Transversalis fascia
 A layer of fibrous tissue that lines
the abdominopelvic cavity
 Separated from the peritoneum by
a variable layer of adipose tissue

12.  Peritoneum
 A single layer of serosa
 The 5 vertical folds
 Single median umbilical fold
• Urachus (median umbilical ligament)
 Paired medial umbilical folds
• Obliterated umbilical arteries
 Paired lateral umbilical folds
• Inferior epigastric arteries & veins
Transversalis fascia &
Peritoneum

13. Blood Supply
 Superficial
 Supply skin and
subcutaneous tissue
 3 vessels
 Superficial
epigastric
 Superficial
circumflex iliac
 External pudendal

14.  Deep
 Supply the musculofascial layer
 Superior epigastric vessels
Inferior epigastric vessels
 Musculophrenic vessels
Deep circumflex iliac vessels
Blood Supply

16. Nerves
 Intercostal nerve 7-11
 Subcostal nerve (T12)
 Iliohypogastric nerves (T12, L1)
 Ilioinguinal nerves (L1)
 Genitofemoral nerves (L1, L2)