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How many sections are ther in the spine and what are they?
- 5
- 1)Cervical(7 bones:remember breakfast at 7)
- 2)Thoracic(12 bones:lunch at 12)
- 3)Lumbar(5 bones:dinner at 5)
- 4)Sacrum(5 fused bones)
- 5)Coccyx(4 fused bones)
- To remember the order of the sections of the spine:
- "The cervent attacked (with saw and) ax the lumbar. stack and cord"
- the cervant(servant) is for cervical, the attacked for the atlas, and the ax for the axis
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What are the first two bones of the cervical spine and why are they different?
- the atlas and axis
- They are different so that the head can swivel on the neck
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The atlas is the only cervical vertabrae without _______ processes or a ________.
spinous, body
*note the odontoid process(dens) is an extemsion of the body of the axis
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What is the joint between the ribs and the thoracic vertebrae called?
costovertebral joint
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How large id the body of a lumbar vertebrae?
2-3cm (usually)
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What is the joint between the pelvis and the sacrum called?
sacroiliac joint (joint between the sacrum and the iliac)
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Where does the spinal cord end and what is it called? Why do we need to know this?
- after L1, the cauda equina ( means horse's tail)
- After L1, where the spinal cord ends, the spine is not as sensitive to radiation from there down.(it can take more dosea)
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What is the map of the body that looks like a zebra and what is it for?
The map shows dermatomes which is is an area of skin that is mainly supplied by a single spinal nerve. Symptoms that follow a dermatome (e.g. like pain or a rash) may indicate a pathology that involves the related nerve root.
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What joint is this?
sacroiliac joint
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What joint is this?
costovertebral joint
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What joint is this? Which view?
spinous process (sagittal view)
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What is this a CT of and what view is it?
This is a coronal view of the dens or the odontoid process(which is part of the axis which you can see some of it here) The dens is the oval-like structure(is the whitest in this picture) that fits into the axis.(which makes the atlantooccipital joint)
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What view is this? (*scotty dog sign)
sagittal oblique
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What are the arrows pointing to?
submandibular gland
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What gland is shown in these pictures?
the parotid gland
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Find nasopharynx, oropharynx, and laryngopharynx
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