Muscles
These muscles make up the transversospinales group.
What is the semispinalis, the multifidus, and the rotatores?
This nerve innervates all of the intrinsic back muscles.
What are the dorsal rami?
This artery runs between the internal intercostal m and the innermost intercostal m.
What are the intercostal aa (posterior and anterior depending on location in question).
State what is happening to pressure and volume in the intrathoracic cavity and intraabdominal cavity during inspiration.
IT: Inc volume, dec pressure
IA: Inc pressure
These two veins join to form the SVC
R/L brachiocephalic vv
This muscle group are the chief extensors of the spine.
What is the erector spinae group?
This nerve innervates the lats.
What is the thoracodorsal n?
After the inguinal ligament, this artery becomes the femoral a.
What is the external iliac a?
What is the diaphragm doing during expiration, how does this affect pressure in the intraabdominal cavity?
IA pressure: decreases
posterior intercostals > azygos > SVC
This layer is comprised of the serratus posterior superior and inferior.
What is the extrinsic intermediate layer?
This nerve pierces the transversus abdominis.
What is the iliohypogastric n?
The lumbar aa originate from this structure.
The abdominal aorta.
What muscles are involved with expiration?
EIIA
internal intercostals, innermost intercostals, abdominal mm
Drainage pathway from the superior portion of the left posterior thoracic wall
posterior intercostals > accessory hemiazygous > azygos >SVC
These muscles are directly superficial to the serratus posterior superior muscle.
What the rhomboids?
This nerve runs through the inguinal canal.
What is the ilioinguinal n?
This artery anastamoses with the inferior epigastric a.
What is the superior epigastric a?
The internal thoracic a's terminal branches
musculophrenic a and superior epigastric a
The ascending lumbar vein and the subcostal vein come together to form which vein
azygos
These muscles are the primary mm involved in inspiration.
Scalenes
external intercostals
levatores costarum
This nerve runs between the iliacus and psoas major m.
What is the femoral n?
The superficial circumflex iliac a and the superficial epigastric a are branches from this artery.
What is the femoral a
This muscle is innervated by a nerve that originates from C3/4/5
diaphragm
The R/L common iliac vv come together to form this vein