Answer the following questions. 
Definitions:
Thoracic
Related to the chest region of the body, particularly concerning the ribs, heart, and lungs.
Sacral
Pertaining to the sacrum, the triangular bone at the bottom of the spine between the two hip bones.
Cervical
Relating to the cervix, the narrow passage forming the lower end of the uterus, or the neck region of the spine.
Ischial Tuberosity
The bony protrusion at the lower part of the pelvis upon which a person sits.
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