BACK MUSCLES ( FILLIN THE BLANKS) Flashcards
(50 cards)
the most superficial muscle of the back is the___
trapezius
the trapezius muscle is innervated by the_____
spinal assesory nerve (CN XI)
the origin of the lattisimus dorsi includes the spinous processes of ___
T7-L5
the lattisimus dorsi inserts into the_______groove of the humerus
intertubercular
the main actions of the lattisimus dorsi are adduction, extension, and____ rotation of the arm
medial
the___ minor muscle helps in elevating the scapula
rhomboid
the rhomboid major and minor muscles are innervated by the___ nerve
dorsal scapular
the erector spinae muscle group consists of iliocostalis,longissimus, and ____
spinalis
the spinalis muscle of the erector spinae primarily inserts into the ___ proceses of vertebrae
spinous
the erector spinae muscle are responsible for lateral flexion and ___ of the vertebral column
extension
the levator scapulae inserts into the __ angle of the scapula
superior
the action of the levator scapulae is ___ of the scapula
elevation
the ___ muscle is not part of the superficial back muscle group, instead it is deep back muscle
multifidus
the multifidus muscle helps in extension and ____ of the spine
rotation
the serratus posterior superor muscle originates from the spinous processes of ___
C7-T3
the serratus posterior superior muscle inserts into the ribs ____
2-5
the function of the serratus posterior superior is ____ of the ribs
elevation
the serratus posterior inferior muscle originates from the spinous processes of ____
T9-L2
the serratus posterior inferior muscle inserts into the ribs____
9-12
the serratus posterior inferior muscle is involved in___ of the ribs
depression
the suboccipital muscles include rectus capitis posteior major, rectus capitis posterior minor, and___ capitis superior
obliquus
the rectus capitis posterior major muscle originates from the ___ (C2)
axis
the rectus capitis posterior major muscle inserts into the ____ bone
occipital
the obliquus capitis superior muscle helps in lateral flexion and___ of the head
rotation