Intrinsic mm. of the back
A group of muscles whose primary action is the extension of the vertebral column.
What are erector spinae muscles?
The amnion surrounds this space.
What is the amniotic cavity?
The intercostal nerve runs along this structure of the rib
What is the costal groove?
The posterior layer of the rectus sheath ends at this line
What is the arcuate line of Douglas?
The pubic symphysis is this type of joint
What is secondary cartilaginous/symphysis?
The transverse processes of C1-C3
What is the insertion of splenius cervicis?
This contains GSA, GSE, and GVE sympathetic
What is the dorsal ramus?
The left ascending lumbar vein and left subcostal vein merge to form this
What is the hemiazygous vein?
Blood from posterior abdominal wall structures drain into this
What are lumbar veins?
This innervates the obturator internus muscle
What is the nerve to obturator internus?
Somites differentiate into two structures, one of which will eventually give rise to intrisinc mm. of the back.
What are epaxial dermomyotomes?
This embryonic structure will give rise to all body cavities
What is the coelomic cavity?
The thoracic diaphragm closes off this space
What is the inferior thoracic aperture?
What is an indirect inguinal hernia?
What nerve comes from S2, S3, S4? (Hint: One of its innervations lies in the urogenital triangle)
What is the pudendal nerve?
These muscles have the most developed fibers in the thoracic region
What are the rotatores? (and technically also spinalis thoracis)
Looking at the T4 spinal cord segment, this would be found in the lateral horn of the gray matter.
What are GVE sympathetic presynaptic neuronal soma?
The manubriosternal joint is this type of joint
What is secondary cartilaginous?
The primary action of this muscle is to compress the abdomen
What is the transversus abdominis?
The anterior portion of the sacroiliac joint is this type of joint (be specific!)
What is synovial plane?
This does not form a border of the actual triangle of the suboccipital triangle
What is the rectus capitis posterior minor?
During this week the blastocyst has formed a layer of hypoblast cells.
What is week 1?
L1-L3 vertebral bodies and related IV dics
What is the origin of the right crus of the thoracic diaphragm?
The joining of the aponeurosis of internal abdominal oblique and transversus abdominis on to the pectineal line
What is the conjoint tendon?
A structure of the perineal membrane that all muscles in the perineum have an attachment to
What is the perineal body?