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Chapter 7
Skeletal System
| Question | Answer |
|---|---|
| How many bones are in the skull? | 22 |
| What are the main bones of the skull? | Cranial bones (cranium) and the facial bones (face) |
| What are paranasal sinuses? | Certain skull bones contain mucous membrane lined cavities |
| What is the only moveable bone of the skull | other than the ear ossicles within the temporal bones |
| What are immovable joints called hold the skull bones together? | Sutures |
| How many bones are in the cranium? | 8 |
| What is the main function(s) of the cranial bones? | 1. Protect brain & house ear ossicle |
| 2. Muscle attachment for jaw | neck & facial muscles |
| How many bones are in the facial structure? | 14 |
| What is the main function of the facial bones? | 1. Protect delicate sense organs -- smell |
| 2. support entrances to digestive and respiratory systems | |
| What are the 8 bones of the Cranial? | Frontal |
| Parietal (2) | |
| Temporal (2) | |
| Occipital | |
| --- | |
| Sphenoid | |
| Ethmoid | |
| What are the frontal bones? | Forehead |
| Frontal suture gone by age 6 (metopic suture) | |
| Supraorbital margin and frontal sinus | |
| At what age is the Frontal suture gone? | 6 |
| How does one get a black eye? | Results from accumulation of fluid and blood in the upper eyelid following a blow to the relatively sharp supraorbital margin (brow line). |
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