Animal Physiology: Locomotion, Senses, Nervous and Chemical Coordination
Lumbar vertebrae are found in:
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Single Choice
Demifacets are present at
AThoracic vertebra
Correct Answer
BLumbar vertebra
CSacral vertebra
DCervical vertebra except C-7
Solution
There are twelve thoracic vertebrae. Their bodies and transverse processes have facets that articulate T1 - T12 with ribs. The head of a rib is joined to two thoracic vertebrae via costal demifacets, half of the facet is on the superior vertebra and half of the facet is on the inferior vertebra. The demifacet may be semilunar or semicircular. Laminae of thoracic vertebrae are short, thick, and broad. They allow some movement of the spine in the thoracic area.
So, the correct answer is option A.
SIMILAR QUESTIONS
Animal Physiology: Locomotion, Senses, Nervous and Chemical Coordination
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