Physics, asked by swastikabk2, 7 days ago

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make a list of bones of skull and facial bones.​

Answers

Answered by nvenkatappa22
0

Answer:

Maxillary bone,palatine bone,zygomatic bone nasal bone ,lacrimal bone vomar bone

etc...

Answered by likefreefire1
1

In the human skull, the facial skeleton consists of fourteen bones in the face:

Inferior turbinal (2)

Lacrimal bones (2)

Mandible

Maxilla (2)

Nasal bones (2)

Palatine bones (2)

Vomer

Zygomatic bones (2)

Variations

Elements of the cartilaginous viscerocranium (i.e., splanchnocranial elements), such as the hyoid bone, are sometimes considered part of the facial skeleton. The ethmoid bone (or a part of it) and also the sphenoid bone are sometimes included, but otherwise considered part of the neurocranium. Because the maxillary bones are fused, they are often collectively listed as only one bone. The mandible is generally considered separately from the cranium.

Development

The facial skeleton is composed of dermal bone and derived from the neural crest cells (also responsible for the development of the neurocranium, teeth and adrenal medulla) or from the sclerotome, which derives from the somite block of the mesoderm. As with the neurocranium, in Chondricthyes and other cartilaginous vertebrates, they are not replaced via endochondral ossification.

Variation in craniofacial form between humans is largely due to differing patterns of biological inheritance. Cross-analysis of osteological variables and genome-wide SNPs has identified specific genes that control this craniofacial development. Of these genes, DCHS2, RUNX2, GLI3, PAX1 and PAX3 were found to determine nasal morphology, whereas EDAR impacts chin protrusion.

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