deep back myology unit 2 Flashcards
serratus posterior superior, a o n
elevate ribs? attatch to superior rib borders II-V, anterior rami t2-t5
serratus posterior inferior a o n
depress ribs? inferior rib borders 8-12, anterior rami t9-t12
name thetwo spinotransversale muscles
splenius capitus, splenius cervices,
action of the splenii (spinotransversales)
bilaterally extend neck, unilaterally rotate ipsi.
erector spinae muscles (3)
spinales, illiocostale, longissimus
action of erector spinae muscles
posture, extension, but some bending and rotation
splenius capitus o i
lig nuchae and spinous process of c7-t4; skull below the lateral 1/3 of the nuchal line and mastoid process
splenius cervecis o i
spinous process t3-t6; transverse process c1-c3
illiocostales, o i
iliac crest/ or lumbar fascia or angles of ribs (TC)– angles of ribs (l/t) transverse processes (cervical)
longissimus o i – thoracis cervicis capitus
transverse processes, transverse process or mastoid (capitus)
spinales o, i
spinous processes– blends w semi spinales capites or nuchal line
transversospinales mucsles (4)
semispinales capitus, semispinales thoraicis, rotatores thoracis, multifidus
transversospinales o i
transverse process (or lamina) to spinous process (pr skull)
what is the territory for semispinales capitus?
cervical 4-6 vert per
what is the territory for rotatores thoracis?
deepest, thoracic, 1-2 v