How many in number are the Bones of the Humane Skeleton?
There are two hundred and fifty usually reckon'd, viz. 61 in the Head, 67 in the Trunk or Chest, 62 in the Arms and Hands, and 60 in the Legs and Feet; but the true Number cannot be exactly determin'd, by reason that some Persons have more, and others fewer; for some have more Ossa Sesamoidea, Teeth and
Breast-Bones than others: Again, some have many indentings in the Lambdoidal Suture, and others have none at all.
Can you rehearse the Number of the Bones of the Head?
There are Fifteen in the Skull, and Forty six in the Face.
The Fifteen of the Skull are the Coronal for the fore-part of the Head; the Occipital for the hinder-part; the two Parietals for the upper-part and each side; the two Temporals for the Temples; the Os Sphenoides or Cuneiforme, which closeth the Basis or bottom of the Skull; the Os Ethmoides, or Cribriforme, situated at the Root of the Nose; and the four little Bones of the Ear on each side, viz. the Incus or Anvil; the Stapes or Stirrup; the Malleolus or Hammer; and the Orbiculare or Orbicular Bone.
Of the Forty six of the Face, Twenty seven are counted in the Upper-Jaw, viz. the two Zygomatick, or the two Bones of the Cheek-Knots; the two Lachrymal in the great Corners of the Eyes toward the Nose; the two Maxillar, that receive the Upper-Teeth, and which form part of the Palate of the Mouth, and the Orbits of the Eyes; the two Bones of the Nose; the two Palate-Bones which are at its end, and behind the Nostrils; the last being single is the Vomer, which makes the Division of the lower part of the Nostrils; and there are generally Sixteen Upper-Teeth. The Lower-Jaw contains Nineteen Bones, viz. sixteen Teeth; two Bones that receive them; and the Os Hyoides, which is single, and fix'd at the Root of the Tongue.
How are the Teeth usually divided with respect to their Qualities?
Into Incisive or Cutters, Canine or Dog-Teeth, and Molar or Grinders: There are eight Incisive, and four Canine, which have only one single Root; as also twenty Molar, every one whereof hath one, two, or three Roots.