Skull : It has two sets of bones - the cranial and facial, that totals to 22 bones. Cranial bones are 8 in number. They form the hard protective outer covering, cranium for the brain. The facial region is made up of 14 skeletal elements which form the front part of the skull. A single U-shaped bone called hyoid is present at the base of the buccal cavity and it is also included in the skull.
A. Cranium : It encloses the brain. Cranium has following eight bones :
(a) Frontal bone (one)
(b) Parietal bones (two)
(c) Occipital bone (one)
(d) Temporal bones (two)
(e) Sphenoid bone (one)
(f) Ethmoid bone (one)
B. Bones of face : Face has fourteen bones namely :
(a) Nasals (two)
(b) Maxilla (two)
(c) Palatines (two)
(d) Mandible (one)
(e) Zygomatic bones or cheek bones (two)
(f) Inferior nasal conchae (two)
(g) Vomer (one)
(h) Lacrimal (two)
How do you distinguish between a skeletal muscle and a cardiac muscle?