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# Vertebra Cervical Thoracic Lumbar Sacrum Coccyx
33 7cervical 12thoracic 5lumbar 5sacrum 4coccyx
Primary curvature
ConCave ventrally Thoracic and Sacral
Convex ventrally
secondary curvature Cervical and Lumbar
Contents of vertebral foramen
Spinal cord and spinal artery
Atypical vertebra
C1 ATLAS no spinous process and no body C2 AXIS with odontoid process or dens C7 long spinous process and not bifid
Vertebral passage of Vertebral artery
Transverse foramen
3 parts of Subclavian A as divided by Scalenous Anterior
1st Vertebral via C1 to 6 Thyrocervical Internal thoracic 2nd costocervical 3rd
Cervical vertebrae char
C3 to C6 short with bifid spinous process
Thoracic vertebrae char
1Long spinous process 2Facet of body to head of rib 3facet of transverse process to tubercle
Thoracic vertebrae absent facet at
T11 T12
C3 C4
1Hyoid bone 2Bifurcation of Common carotid A
C5
1Thyroid cartilage 2 carotid pulse palpated
C6
1Cricoid cartilage 2start of TRACHEA and ESOPHAGUS
T2
1Sternal notch 2Arch of aorta
T4
1Sternal Angle 2JXN sup and in mediastinum 3Bifurcation of trachea
Hyoid bone
C3 C4
Bifurcation of Common carotid A
C3 C4
Thyroid cartilage
C5
carotid pulse palpated
C5
Cricoid cartilage
C6
start of TRACHEA and ESOPHAGUS
C6
Bifurcation of trachea
T4
Arch of Aorta
T2
Duodenum
T12 to L1
Upperpole of LEFT Kidney and Celiac a
T12
Upper pole of RIGHT Kidney
L1
End of spinal cord in newborn
L3
Anatomical umbilicus area
L3 IMA too
End of Pia Mater
L1
bifurcationof aorta
L4
End of Conus Medulllaris ie spinal cord
L1
Bifurcation of Aorta
L4 ILIAC CREST too
End of dura arachnoid and CSF
S2
Sacral promontory
S1
End of sigmoid
S3
Dermatomal umbilicus
T10
dermatomal back of head
C2
Thumb
C6
Middle finger
C7
Big toe
L4 L5
Little finger
C8
Small toe
S1
Perineum
S5
Inguinal dermatome
L1
Iliac crest anatomic
L4
Intervertebral vs Transverse foramen
intervertebral SPINAL ROOTS transverse VERTEBRAL ARTERY
LAMINAE of posterior horn
Laminae I to IV
LAMINAE of anterior horn
Laminae 8 and 9
vertebral level QUADRIPLEGIA
C4 to C6 bilateral lesion
vertebral level PARAPLEGIA
thoracic and spinal cord BILATERAL
vertebral level MONOPLEGIA
thoracic and spinal UNILATERAL
LP done at
L3 to L4 OR L4 to L5
Structures traversed during lumbar puncture 9
1Skin 2Superficial fascia 3Superspinous lipament 4Interspinous ligament 5Ligametum flavum 6Epidural space 7Dura mater 8 Arachnoid 9 Subarachnoid space containing CSF
Where breath sounds best heard TRIANGLE OF AUSCULTATION boundaries
1Lattissimus dorsi 2Trapezius 3Medial border of scapula
Site of lumbar hernia LUMBAR TRIANGLE OF PETIT borders
1External ablique 2 Lattisimus dorsi 3 Iliac crest
Climbing muscle
Lattisimus dorsi
Embryologic origin of SKELETAL muscle
Para axial MESODERM
Embryologic origin of SMOOTH muscle
Splanchnic or Visceral MESODERM
Artery of Adamkievicz arises from aorta to supply ASA levels?
T9 to T12