What bone marking found on the second cervical vertebra projects superiorly into the anterior portion of the vertebral foramen of the atlas

Odontoid Process

Explanation:

The Axis has a protuberance (process or projection) called the odontoid process. Where it joins the main body of the vertebra, it has a slight constriction or neck. It has an oval or nearly circular facet on its anterior surface for articulation with the anterior arch of the atlas.

odontoid process that articulate with concave facet

Explanation:

the concave facet on the anterior arch or C1 to form the atlantoaxial articulation

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

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