VERTEBRALS LEVELS

1. Cervical vertebrae

VERTEBRA LANDMARKS
C1 border (conventional) spinal bulb / spinal cord
C2 C1 / C2: articulated dental

vertex of the anterior convexity of the cervical spine

lower edge of the mandible

alignment of the three main salivary glands

C3 C3 / C4 = division of the primary carotid artery.

hyoid bone

C4 carotid bifurcation
C5 larynx / cervical trachea junction
C6 beginning of the esophagus
C7 Most palpable posterior process

2. Thoracic vertebrae

VERTEBRA LANDMARKS
Th1 upper edge of sternal manubrium
Th2 cervical / thoracic trachea junction
Th3 crossing of the left phrenic nerve and left pneumogastric (Th3 / Th4)

cross section

manubrium / sternum angle (Louis angle)

scapula thorn

Th4 crossing of the left phrenic nerve and left pneumogastric (Th3 / Th4)
Th5 tracheal bifurcation.
Th6
Th7 tip of the scapula

the hemiazygos vein opens into the azygos vein

upper end of the diaphragmatic dome

Th8 nipple level
Th9 Diaphragmatic orifice of the IVC

xiphoid process of the sternum

Th10 Diaphragmatic orifice of the esophagus
Th11 celiac trunk Th12 / L1
Th12 diaphragmatic orifice of the Aorta (descending)

3. Lumbar vertebrae

VERTEBRA LANDMARKS
end of the twelfth rib

origin of renal arteries

renal hilum

L1 aorto-mesenteric forceps

sperm artery

L2 start of the dural dead end which extends to S2
L3 most anterior vertebra due to the rear concavity of the lumbar spine.

iliac crest

bifurcation of the abdominal aorta

navel level

formation of the inferior vena cava in front of the right primary iliac vein

L4 lumbar puncture
L5

4. Sacred Vertebrae

VERTEBRA LANDMARKS
S1 anterior ledge: the promontory
S2 sperm artery
S3 end of sigmoid colon
S4
S5

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