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What are the Eight Bones of the Canium
Frontal, Temporal, Occipital, Ethmoid, Sphenoid, Parietal, Mandible, and Maxillae
What are the divisions of the spine
Cervical (7) Thoracic (12) Lumbar (5)
The Sacrum (fused 5) and the Coccyx (Fused 4)
On which vertebra are facets located and what is their function?
They are located on the traverse process of the Thoracic Vertebra; their function is articulation
What are the components of the Intervertebral Disc? What is it composed of?
Annulus fibrosis and Nucleus Pulposus
What makes up the thoracic cage? (Rib Cage)
Sternum, Costal Cartilage and Ribs
Coastal Cartilage is an example of Hyline Cartilage
A small U shaped bone in the neck where many muscles of the tongue attach. The jointless wonder
What are two possible functions for Sinuses?
To Lighten the facial bones & they may act as resonance chambers for speech
Which bones contribute to the formation of the orbit?
Frontal Bone, Sphenoid, Lacrimal, Maxilla, Zygomatic, and Ethmoid
Why is the Sphenoid called the keystone of the cranial floor?
Because it articulates with all other cranial bones
Vertebral Type containing foramina in the transverse processes, through which the vertebral arteries reach the brain.
Cervical Vertebra - typical
Transverse processes faceted for articulation with the ribs; spinous processes pointing sharply downward (Vertebra)
Thoracic Vertebra (T1-T12)
These provide levers against which muscles pull on the thoracic vertebra
The Superior Articular Facet
What are the secondary curvatures and under what conditions do they develop?
Cervical - When the baby begins holding its head own its own
Lumbar- When the baby begins walking
Cartilage-forming cells secrete new matrix against the external face of the existing cartilage tissue during what kind of growth?
At the end of secondary ossification, hyaline cartilage can be found where in long bones?
at the epiphyseal plates
In adolescence, the "growth spurt" that is observed is mainly attributed to an increase in:
When Calcium concentration in the blood becomes lower than normal:
A decrease in Ca2+ concentration in the blood is detected by the body; in response, PTH (parathyroid hormone) is released. The release of PTH activates osteoclasts. Osteoclasts then resorb bone, releasing Ca2+ to restore calcium homeostasis.
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