Class 1 Flashcards
What 3 things make up the posterior aspect of the abdomen?
lumbar vertebrae, intervertebral discs and inferior ribs
4 quadrants of abdomen
RUQ, LUQ, RLQ, LLQ
What 2 imaginary lines separate the 4 quadrants of the abdomen?
transumbilical and midline
9 regions of the abdomen
R+L hypochondriac epigastric R+L lumbar umbilical R+L iliac hypogastric
What lines separate the 9 regions of the abdomen?
transcostal, midclavicular lines and transtubercular
Organs present in right hypochondriac
liver, gallbladder, duodenum
Organs present in epigastric region
pyloris, duodenum, head of liver
Organs present in Left hypochondriac
spleen, stomach, pancreas tail
Right lumbar regions organs
ascending colon, jejunum and right kidney
Umbilical region organs
jejunum and ileum, lower duodenum and aorta and iliac arteries
Right iliac region organs
caecum, appendix, ileum
Hypogastric region organs
uterus, bladder, ileum
Left iliac region organs
left ureter, sigmoid colon, left ovary
3 flat abdominal wall muscles
transversus abdominis, internal and external oblique
Innervation of abdominal wall muscles
ventral rami T7-11
Rectus abdominis action
flexion of lumbar spine
Transversus abdominis action
compress abdominal contents
External oblique action
contralateral rotation of torso
Internal oblique action
bilateral = compress abdomen unilateral = ipsilateral trunk rotation
Difference with abdominal muscles below and above umbilicus
above they run infront and behind whereas below they only run anteriorly
What is the aponeurosis of the 3 flat muscles called?
rectus sheath
Vertebral level of umbilicus
L3/4
Dermatome of umbilicus
T10
When is the inguinal canal formed?
Relocation of gonads as anterior abdominal wall push through and form a canal