Abdominal Cavity and Contents Part 1 Flashcards
Inguinal canal is the passageway for?
Descent of testis and spermatic cord
Inguinal canal extends from?
Superficial inguinal ring to deep inguinal ring
Superficial inguinal ring
Slit-like opening into aponeurosis of EAO
Deep inguinal ring borders
Cranial: IAO
Medial: Rectus abdominus
Caudal: inguinal ligament
Inguinal canal contains?
- Spermatic cord or vaginal process
- External cremaster m.
- External pudendal a. and v.
- Genitofemoral n.
- Efferent duct of superficial inguinal ln.
Abdominal cavity borders
- Diaphragm (cranial and bilateral)
- Lumbar vertebrae and sublumbar mm. (dorsal)
- Abdominal mm. (bilaterla)
- Rectus abdominis and linea alba (ventral)
- Pelvic inlet (caudal, continuous with pelvic cavity)
Abdominal cavity contains
- Stomach → descending colon
- Liver
- Pancreas
- Spleen
- Kidneys
- Female repro tract
- Nerve plexuses, vessels, ln., omental structures
Linea alba is the?
Midventral raphe
Linea alba is formed by?
Aponeurotic insertions of abdominal mm.
Linea alba origin
Xiphoid cartilage
Linea alba blends with?
Prepubic tendon
Linea alba insertion
Pelvic symphysis
Layers of linea alba
- Aponeurosis of EAO
- Aponeurosis of IAO
- Aponeurosis of transversus abdominis m.
- Transverse fascia
Peritoneum is the?
Largest and most complex arranged serous membrane in body
Peritoneum in male
Closed sac
Peritoneum in female
Opens into peritoneal cavity via ovarian bursa by free end of uterine tubes
Uterine tubes aka?
Abdominal ostium
Peritoneum function
Reduce friction between parts
Peritoneum underlined by?
Transverse fascia
3 parts of peritoneum
- Parietal peritoneum
- Visceral peritoneum
- Peritoneal cavity (in between)
Parietal peritoneum lines?
- Abdominal wall
- Abdominal surface of diaphragm
- Cranial portion of pelvic cavity
- Scrotal cavity and vaginal process
Parietal peritoneum forms?
- Parietal vaginal tunics of spermatic cord and vaginal process
- Vaginal rings (peritoneal cavity continuous with cavity of vaginal tunic)
Visceral peritoneum covers the organs in the?
- Abdominal cavity
2. Cranial portion of pelvic cavity
Peritoneal cavity is the?
Potential space between parietal and visceral perioneum
Peritoneal cavity contains?
Small amount of serous fluid → NO ORGANS!
Ova ovulate into the?
Parietal cavity
3 parts of peritoneal cavity
- Greater sac (main region)
- Lesser sac (omental bursa)
- Epiploic foramen
Lesser sac of peritoneal cavity aka?
Omental bursa
Epipolic foramen
Communication between greater and lesser sacs of peritoneal cavity
Prararectal fossa is located?
Each side of the mesorectum
Female rectogenital pouch contains?
- Rectum (dorsally)
2. Cranial part of vagina (ventrally)