GI Class 1 - Wet Lab Flashcards
name 1 and 2
1 - xiphoid process
2 - right and left costal margins
name 3 and 4
3 - 12th rib
4 - iliac crest
name 5 and 6
5 - anterior superior iliac spine
6 - pubic tubercle
name 7 and 8
7 - pubic crest
8 - pubic symphysis
name 9 and 10
9 - body of lumbar vertebrae
10 - sacroiliac joint
name the 4 quadrants of the abdomen
1 - right upper
2 - left upper
3 - right lower
4 - left lower
what are the two imaginary lines used to divide the abdomen into 4 quadrants?
name A and B
A - transumbilical line
B - medial line (midsagittal)
what are the lines used to divide the abdomen into 9 regions?
name 1, 2 and 3
1 - right and left midclavicular lines
2 - trans tubercular line
3 - subcostal/transpyloric line
name the 9 regions of the abdomen
right hydrochondriac, epigastric, left hydrochondriac
right lumbar, umbilical, left lumbar
right iliac/inguinal, hypogastric/suprapubic, left iliac/inguinal
what organs or structures may be present in the right hypochondriac region of the abdomen
liver
gallbladder
right kidney
what organs or structures may be present in the epigastric region of the abdomen
adrenal glands
part of the duodenum
most of the stomach
what organs or structures may be present in the left hypochondriac region of the abdomen
left kidney
pancreas
part of the stomach
what organs or structures may be present in the right lumbar region of the abdomen
gallbladder
ascending colon
right kidney
what organs or structures may be present in the umbilical region of the abdomen
umbilicus
transverse colon
many parts of the small intestine e.g. duodenum, jejunum, illeum
what organs or structures may be present in the left lumbar region of the abdomen
descending colon
left kidney
part of the spleen
what organs or structures may be present in the right iliac region of the abdomen
caecum
appendix
right iliac fossa
what organs or structures may be present in the hypogastric region of the abdomen
bladder
anus
part of the sigmoid oclon
what organs or structures may be present in the left iliac region of the abdomen
sigmiod colon
part of the descending colon
left iliac fossa
the antero-lateral abdominal wall is constituted by ______ flat muscles and ____ vertical muscles
the antero-lateral abdominal wall is constituted by three flat muscles and two vertical muscles
what is the action of the external oblique?
compress and support abdominal viscera
flex and rotate trunk
(functions to pull the chest downwards and compress the abdominal cavity, which increases the intra-abdominal pressure as in a valsalva maneuver. It also performs ipsilateral (same side) side-bending and contralateral (opposite side) rotation)
what is the innervation of the external oblique?
thoraco abdominal nerves (anterior rami of T7-11) and subcostal nerve
The external oblique muscle is supplied by ventral branches of the lower six thoracoabdominal nerves and the subcostal nerve on each side
what is the action of the internal oblique?
compress and support abdominal viscera
flex and rotate the trunk
(This muscle supports the abdominal wall, assists in forced respiration, aids in raising pressure in the abdominal area, and rotates and turns the trunk with help from other muscles)
what is the innervation of the internal oblique?
thoraco-abdominal nerve (anterior rami T7-11), subcostal nerve and the first lubar nerve
(Thoracoabdominal nn. (T7-T11), Subcostal n. (T12), Iliohypogastric n. (L1) and Ilioinguinal n. (L1))
what is the action of the transversus abdominis?
compress and supports abdominal viscera
(support for the abdominal wall
role in maintenance of posture
trunk movements: flexion, extension, lateral flexion
raise intra-abdominal pressure e.g. for forced expiration, defaecation, micturition and parturition
via the conjoint tendon, to support the posterior wall of the inguinal canal)
what is the innervation of the transversus abdominis?
thoraco-abdominal nerve (anterior rami T7-11), subcostal nerve and the first lubar nerve
(innervated by the anterior primary rami of T7 to T12. The conjoint tendon is supplied by the ilioinguinal nerve (L1))