4. Back Anatomy Flashcards
The vertebral column has _ cervical, _ thoracic, _ lumbar, _ sacral, and _ coccygeal vertebra
7 12 5 5 4
What vertebra are involved in flexion/extension, lateral rotation, and rotation of the neck?
Cervical
T/F Thoracic is involved with extreme movement
False (limited)
Lumbar is involved with _, _, and rotation
extension, flexion
Primary curvatures are _ and _
thoracic and sacral
Secondary curvatures are _ and _
cervical and lumbar
Scoliosis is _ of spine
lateral curvature
Curvature of the thoracic vertebra is _
kyphosis
Curvature of the lumbar vertebra is _
lordosis
Spinal nerves exit through the _
intervertebral foramen
What ligament does the spinal cord press up against?
Posterior longitudinal ligament
Intervertebral discs are classified as _ and fibrocartilagenous
symphysis
T/F Discs are vascular which makes them capable of healing quickly
False (avascular)
Superficial back muscles / the brachium
move/stabilize
Superficial back muscles are innervated by _ and _
VPRs, CN 11
Intermediate back muscles / the _
move/stabilize, ribs
Intermediate back muscles are innervated by _
VPRs
Deep back muscles / the _
move/stabilize, trunk
Deep back muscles are innervated by_
DPRs
Origin of trapezius is _, _, and _
external occipital protuberance spinous processes (C7 to T12) nuchal ligament
Insertion of trapezius is ,, and _
lateral 1/3 of clavicle
medial acromion
spine of scapula
Action of trapezius is _, _, and _
elevate scapula
depress scapula
adduct (retract) scapula
Innervation of trapezius is _
CN 11
Origin of L. Dorsi is _, _, and _
spinous processes (T5-L5)
Thoracolumbar fascia
iliac crest
Insertion of L. Dorsi is _
intertubercular groove of humerus
Action of L. Dorsi on the humerus is to _, _, and _
extend
adduct
medially rotate
Innervation of L. Dorsi
Thoracodorsal nerve
Levator Scapulae has its origin on _
transverse processes (C1 to C4)
Insertion of L.S is _
medial scapular border
Action of L.S is _
elevate scapula
L.S is innervated by _
Dorsal scapular nerve
Rhomboid M and Minor originate on _
spinous processes
Rhomboid M and Minor insert on _
medial scapular border
Rhomboid M and Minor are innervated by _
dorsal scapular nerve
Action of Rhomboid M and Minor is _ and _
Adduct (retract) and rotate scapula
Serratus PS and PI originate on _
lateral spinous processes
Serratus PS and PI insert on _
ribs
Action of Serratus PS and PI is to _
assist with respiration
Serratus PS and PI are innervated by _
innercostal nerves from VPRs
The erector spinae muscles are _, _, and _
Spinalis
Longissimus
iliocostalis
Splenius capitis inserts on _
mastoid process
Semispinalis capitis inserts on _
external occipital protuberance
