Final answer:
The term for pertaining to under the ribs is 'Subcostal'. The subcostal region is located inferior to the thoracic cage, which consists of the sternum and ribs. Moreover, the cranial cavity is the one that contains a component of the central nervous system, which is the brain.
Correct option is a)Subcostal
Step-by-step explanation:
The term that means pertaining to under the ribs is a) Subcostal. This term is derived from 'sub-', meaning beneath or under, and 'costal', which pertains to the ribs. The thoracic cage is an important anatomical structure formed by the sternum, 12 pairs of ribs and their costal cartilages, with the ribs classified as true ribs (1-7) and false ribs (8-12), including the floating ribs (11 and 12). The subcostal region is therefore the area inferior to the ribs.
Addressing other terms as context, b) Hypoglycemia refers to low blood sugar levels, c) Intravenous means within or by way of the veins, and d) Parathyroid pertains to the parathyroid glands which are located near the thyroid gland.
For the review question, the cavity that contains a component of the central nervous system is c) cranial. The cranial cavity houses the brain, which is a central organ of the nervous system.