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Week 1 Back Notes
Fichas del conjunto (21)
- 1Superficial Back- Vertebral Column, supporting muscles, spinal cord, associated tissues like skin, nerves, connective tissue, vessles, joints and ligaments, musculature
- Musculature, Suboccipital Triangle - 2Synovial Joints Cartilaginous Joints- Articulation between superior and inferior articulating processes of vertebrae (zygapophysial or facet joint)
- Articulation between vertebral bodies (disc cushions adjacent vertebral bodies) - 3Inside an Intervertebral Disc- Outside= annulus fibrosus
- Inside = nucleus pulposus - 4Cranio Vertebral JointsAtlanto Occipital
Atlanto axial
Atlas
Axis
Occipital - part of skull - 5Atlanto- Occipital JointsSynovial Joints, between superior articulating processes of C1 and occipital condyles of skull
Nodding Yes at this joint - 6Atlanto Axial JointsSynovial Joints between C1 and C2- Shaking head no
- 7Anterior Longitudinal Ligament Continues asChecks extension of vert column
Continues superiorly as anterior atlanto-axial ligament and anterior atlanto-occipital ligament - 8Posterior Longitudinal LigamentChecks flexion of vertebral column
Continues superiorly as tectorial ligament at level of vertebral C2 - 9Ligamentum FlavumConnect adjacent laminae, checks flexion of vertebral column
Forms posterior atlanto-occipital ligament (occipital bone and C1) and posterior atlanto axial ligament (C1 and C2) - 10Interspinous Ligaments Supraspious LigamentsCheck Flexion of Vertebral column
Supraspinous ligaments- connect tips of adjacent spinous processes (called ligamentum nuchae at cervical levels), check flexion of vertebral column - 11Superficial Group of Extrinsic Back Muscles Intermediate groupTrapezius, latissimus dorsi, levator scapulae, rhomboid major and minor
Assists in holding deep muscles in place, accessory muscles of respiration
serratus posterior superior and inferior - 12Trapezius A- 3,1 AP- 4 AD: 3 I- 1 B-1A: elevation, retraction, depression of scapula; rotation of glenoid fossa superiorly
AP: Superior nuchal line, external occipital protruberance, nuchal ligament, spinous processes C7-T12
AD: Clavicle, acromion, scapular spine
I: Cranial Nerve XI (spinal acc nerve)
B: Transverse cervical artery - 13Latissimus Dorsi A- 4 AP- 3 AD-1 I- X B-XA: Extension, adduction, medial/internal rotation of humerus; lifts body toward arm in climbing
AP: Spinous processes T7-T12, Thorcolumbar fascia, iliac crest
AD: Floor of intertubercular sulcus of humerus - 14Levator Scapulae A- X AP- 1 AD-1 I- 1 B-1A:
AP: traverse processes C1-4
AD: Superior Angle of Scapula
I: Dorsal Scapular nerve (C5)
B: Dorsal Scapular artery - 15Rhomboid Major and Minor A- X AP- 1,1 AD- 1 I- X B- XA:
AP Minor- nuchal ligament, spinous processes of C7, T1
AP Major- spinous processes of T2-T5
AD: medial border of scapula, minor superior to spine, major below
I: X
B: X - 16Serratus Posterior Superior/InferiorA: elevation/ depression of ribs
- 17Splenius capitus and cervicisLooks like a bandange, spinotransverse muscles
A: unilateral contraction = lateral flexion of nect, roation of head to side of contraction
bilateral contraction= head and neck extension - 18Erector Spinae3 columns, appears as a big muscle mass
-iliocostalis- most lateral
longisimus- middle column
spinalis- most medial
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A: unilateral contraction = lateral flexion
bilateral contraction = extension - 19Transverso-SpinalSemispinalis- spans 4-6 vertebrae before distal insertion, A: extension of vertebral column (semispinalis cervicis) and head (semispinalis capitus)
Multifidus- spans 2-4 " ", thickest in lumbar region, A: unilateral contraction: rotates to contralateral side, stabilizes vertebrae
Rotators- 1-2, best developed in thoracic region, A: extension and rotation of vertebral column - 20Back muscle Innervation- intrinsic back muscles by dorsal (post) rami of spinal nerves
- extrinsic back muscles- innervated by ventral rami of spinal nerves
Except: trapeizus by Cranial XI - 21Suboccipital Triangle- in the superior aspect of the posterior neck, deep to trapezius and semispinalis capitus
Boundaries: rectus capitus posterior major, obliquus capitus superior, and obliquus capitus inferior
Floor posterior arch of C1 vertebra and posterior atlanto-occipital membrane
* Contains vertebral artery (sharp turn) and suboccipital nerve (C1 dorsal ramus)
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- (Week 1 Spinal Cord, ANS, Back) Gross Anatomy Fichas sobre Week 1 Back Notes, creado por James Robbins el 05/08/2017.
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- James Robbins
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