Anatomy of the Abdomen test qustions with correct answe

Abdominal Anatomy questions with
correct answers



Action of the abdominal muscles? - CORRECT ANSWERS-Lateral flexion and rotation
of the trunk

Help promote urination, defecation, childbirth, vomiting, coughing, and screaming

Contents of the Greater Omentum? - CORRECT ANSWERS-Anastomosis of right and
left gastro-epiploic vessels

Lymph nodes

Lobules of fat

Milky spots (derived from fixed macrophages)

Fascia Transversalis - CORRECT ANSWERS-Areolar membrane which lines the inner
surface of the transversus abdominis muscle

Function of the rectus sheath? - CORRECT ANSWERS-retains rectus abdominis
muscle and provides added support to the ant abdominal wall

How do the greater and lesser sacs communicate? - CORRECT ANSWERS-The two
sac communicates through the epiploic foramen/ Foramen of Winslow

Innervation of the abdominal muscles - CORRECT ANSWERS-intercostal nerves

Layers of the abdominal wall - CORRECT ANSWERS-Skin
Superficial fascia
Muscles
Fascia transversalis
Extra peritoneal fat

, Parietal peritoneum

NO DEEP FASCIA OF THE ABDOMEN

Mesentery? - CORRECT ANSWERS-is a double layer of peritoneum

Routes for blood vessels, lymphatics, and nerves
Holds organs in place and stores fat

Muscles in the rectus sheath? - CORRECT ANSWERS-1) Rectus abdominis
2) Pyramidalis

Nerves in the rectus sheath? - CORRECT ANSWERS-Lower five intercostal and the
subcostal nerve

Other structures in the posterior abdominal wall? - CORRECT ANSWERS-Inferior Vena
Cava
Abdominal Aorta
Lymphatics (Cisterna chyli) and lymph nodes
Nerves-: Somatic (Lumbar Plexus) and Autonomic (Sympathetic trunks and plexus)
Kidney, Ureter
Suprarenal glands

Rectus Sheath - CORRECT ANSWERS-An aponeurotic envelope for the rectus
abdominis muscle

Regions of the abdomen - CORRECT ANSWERS-

The rectus sheath is formed by... - CORRECT ANSWERS-Two layers of the external
oblique and the superficial layer of the internal move anteriorly and become
aponeurosis

FORMATION :
¥ Above arcuate line: ant. layer is formed by aponeurosis of EO & ant part of
aponeurosis of IO, post. layer is formed by post part of IO aponeurosis & all of TA
aponeurosis
¥ Below arcuate line: ant. layer is formed by all 3 aponeurosis of EO, IO and TA; post.
rectus sheath is absent - rectus abdominis muscle is in contact with transversalis fascia

FUNCTION: retains rectus abdominis muscle and provides added support to the ant
abdominal wall

Vessels in the rectus sheath? - CORRECT ANSWERS-1) Inferior epigastric (branch of
external iliac artery)
2) Superior epigastric (branch of internal thoracic artery)