Lecture 10 part one (SECOND MIDTERM) Flashcards
What indicates the separation between epaxial and hypaxial?
Transverse processes
Cep (biCEP, triCEP) refers to…
the numbers of heads
What are the three layers of epaxial muscles (superficial to deep)?
Erector spinae
Intermediate layer
Deep layer
What are the three layers of erector spinae (lateral to medial)?
Iliocostalis
Longissimus
Transverso-spinalis
Iliocostalis…
Origin:
Insertion:
Origin: sacrum/iliac crest
Insertion: ribs
Longissimus…
Origin:
Insertion:
Origin: sacrum/iliac crest
Insertion: transverse processes
Transverso-spinalis…
Origin:
Insertion:
Origin: sacrum/iliac crest/transverse processes
Insertion: spinous processes
What are the layers of the Intermediate layer?
Multifidus
Semispinalis
Multifidus…
Origin:
Insertion:
Origin: sacrum/iliac crest
Insertion: spinous process
Semispinalis…
Origin:
Insertion:
Origin: transverse processes
Insertion: spinous processes
What does the deep layer of epaxial muscle do?
the deep layer consists of short slips of muscle that connect adjacent vertebrae
What are the 3 layers of hypaxial musculature?
Body wall
Prevertebral
Limbs
What are the subdivisions of the body wall?
Abdominal
Thoracic
Perineal
Neck (odd one out)
What are the subdivisions of the abdominal group (superficial to deep)?
External oblique
Internal oblique
Transversus
The limbs usually don’t receive innervation from…
Instead, from…
dorsal rami
ventral rami
Ventral rami only goes to what structures?
hypaxial
External oblique…
Origin:
Insertion:
Origin: lower 8 ribs
Insertion: top of rectus sheath
Internal oblique…
Origin:
Insertion:
Origin: iliac crest
Insertion: rectus sheath
Transversus…
Origin:
Insertion:
Origin: thoracolumbar fascia
Insertion: sheath below abdominus rectus
What does the neck NOT share with the other subdivisions of the body wall?
the other subdivisions have coelom