PS 1001:03 Lecture Notes - Lecture 11: Rib Cage, Vertebral Column, Intervertebral Disc
Understand the basic components of the spine:
Significant spinal features
72-75cm length
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1/4 height made up by intervertebral discs
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About 40% of total height due to vertebral column length
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Diurnal (changes day and night, up to 2cm) and age related height changes
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Functions of spine
Protects the spinal cord and nerve roots
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Serves as attachment site for muscles of the pectoral and pelvic girdles
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Allow movement of the torso, head and neck and transmits movements across the
upper and lower limbs
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Provides attachment for muscles that move the vertebral column and maintain
balance and erect posture
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Carries and supports the thoracic cage
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Supports body weight, hence the increase of vertebrae towards the lumbar region
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Provides shock absorption via its curvatures and intervertebral discs
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Stores bone marrow
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Development of the vertebrae
Screen clipping taken: 26/03/2018 8:32 PM
Spinal divisions
7 cervical, C1-C7
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12 thoracic, T1-T12
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5 lumbar, L1-L5
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5 sacral (fused)
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4 coccygeal (fused)
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33 vertebrae
L1 - the spine
Monday, 26 March 2018
8:24 PM
week 6 Page 1
Document Summary
About 40% of total height due to vertebral column length. Diurnal (changes day and night, up to 2cm) and age related height changes. Serves as attachment site for muscles of the pectoral and pelvic girdles. Allow movement of the torso, head and neck and transmits movements across the upper and lower limbs. Provides attachment for muscles that move the vertebral column and maintain balance and erect posture. Supports body weight, hence the increase of vertebrae towards the lumbar region. Provides shock absorption via its curvatures and intervertebral discs. Sacro-coccygeal kyphosis (slight scoliosis due to arm dominance, aortic arch) Then straightens out as head lifts up week 6 page 2. Similarities and differences - anatomical features of spinal vertebrae and regional variations. Has anterior and week 6 page 3 backwards. Has anterior and posterior tubercles groove on upper surface for spinal nerve. Projects laterally and slightly backwards oval facet, anterior surface, lateral end articulates with tubercle of rib (numerically corresponding)
