Anatomy Flashcards
At what vertebral level does the common carotid artery bifurcate? Note this all happens to be the level of the hyoid bone
C3
At what vertebral level is the sternal angle?
T4
At what vertebral level is the xiphoid process?
T9
What are the quadrants of the abdomen?
Right upper + lower
Left upper + lower
What are the 9 regions of the abdomen?
Right Hypocondriac-Epigastric-Left Hypocon.
Right Lumbar- umbilical- Left Lumbar
Right Iliac- Hypogastric- Left Iliac
What divides the lumbar from iliac and umbilical from hypogastric?
Transtubercular Line
What divides the hypochondriac from lumbar and epigastric from umbilical?
Subcostal Line
What line splits the abdomen twice vertically?
Midclavicular Lineq
What is the action and innervation of the External Oblique muscles?
\\- support abdominal viscera, flex + rotate trunk
Innervated thoraco-abdominal T7-11
What is the action and innervation of the Internal Oblique muscles?
///- support abdominal viscera, flex + rotate trunk Innervated Thoarco-subcostal lumbar T7-T12
What is the action and innervation of the Innermost Oblique muscles?
—- compress + support abdominal viscera
Innervated Thoraco-subcostal first lumbar T7-12
What is the action and innervation of the rectus abdomens?
|||- Flex trunk, compress abdominal viscera, control pelvic tilt
Innervated via Thoraco-abdominal + subcostal T7-T12
What is the function of the pyramidal?
Flexion + extension (inconsistent)
What is the rectus sheath?
Tough sheath enclosing the rectus abdomens + pyramidal muscles. Aponeurosis of transverse abdomena, external oblique, internal oblique
What vertebral level is the umbilicus?
L3-L4 (variable)