Fig. 2.
Divers Muscles lying under those exprest in the former Figure.
A A A, The Lower Edge of the Inferior Jaw-Bone laid bare.
B B, The Musculi Sternohyoidei free'd from their Insertions, and left at their Originations.
C C C C, The Coracohyoidei are a Pair of Digastrick Mus∣cles; they Arise Fleshy from the Processus Coracoides Scapulae, and Ascend under the Musculi Mastoidei where they become Tendinous, but Growing Fleshy again, are Inserted at the Ba∣sis of the Fore-Bone of the Os Hyoides; this draws the Os Hy∣oides downwards, and pulls it somewhat inwards.
D, Part of the Musculus Stylohyoideus at its Termination.
E E, The Musculus Mylohyoideus; on the Right Side not quite Free'd from its Origination; on the Left, so Rais'd, as that the Glandula Sublingualis W, do's Appear; this Bidloo calls Geniohyoidei.
F F, The Geniohyoidei, by Bidloo call'd Anthereohyoidei; they Arise Fleshy from the Internal Part of the Lower Jaw, which composes the Chin, and are Inserted to the Superior, and Forepart of the Os Hyoides: When these Muscles Act, the Os Hyoides is pull'd Upwards, and Forewards, and Assist the Genioglossi in Thrusting the Tongue out of the Mouth.
G G, The Digastrick Muscles of the Lower Jaw cut from their Insertions.
H H, The Mastodei Muscles; that of the Right Side being cut from its Origination and left at its Insertion, that of the Left remaining in Situ.
I, The Scutiformal Cartilage of the Larynx, which makes what they call, the Pomum Adami.
K, The Aspera Arteria or Wind-Pipe.
L L, The Glandulae Thyroidaeae.
M, The Musculus Masseter in Situ.
N, The Musculus Pterygoideus Internus in Situ; it A••••es partly Tendinous, and partly Fleshy, from the Cavity of the Winglike Process of the Os Sphenoides. Tab. 29. Fig. 2. K. whence it Descends to its Implantation at the Internal and Inferior Part of the Lower Jaw-Bone, opposite to the Ter∣mination of the Masseter: Either this, or its partner Acting, draws the Jaw to the contrary Side; if both Act, they Assist the Musculi Temporales, and Masseteres.
O, Part of the Parotid Gland.
P, The Musculus Hyothyroideus; it Arising from the Os Hyoides, is Inserted to the Lower Part of the Scutiformal Car∣tilage; this draws the Larynx Upwards in an Acute Tone of the Voice.
Q, The Cricothyroideus. See Tab. 24. Fig. 5. H H.
R, The Sternothyroideus ending in the Scutiformal Carti∣lage.
S, The Internal Jugular Vein, whose Lower Part is at some distance plac'd under that Part of the Mastoid Muscle, (App. Fig. 1.14.) which springs from the Clavicle, which Part of that Muscle is most commonly Contracted in those who are said to have Wry Necks, which the Operator in that Case ought to Observe, least in too boldly Thrusting in his Knife to divide the contracted Part, he also Wounds this large Blood-Vessel, and the Flux of Blood prove Destructive to the Patient; for tho' its Flux may easily be restrain'd out∣wardly, yet the Vein lying in so large an Interstice, defended by the Clavicle, and Adjacent Muscles, the Blood will ne∣vertheless pass out of the Vessel between the Muscles, and Neighbouring Parts. When such a Mischief is done, we ought to divide the External Integuments largely, and clear the Part of the Coagulated Blood, and apply a moderate Compress on the Wounded Vessel: An Instance of which Practice we had once Occasion to make in a Wound between the Pectoral, and Deltoid Muscles, immediately under the Clavicula, where the Subclavian Vein was Wounded. In such like Cases, how can those Ignorant in Anatomy, Practice without Fear and Trembling?
T, The Carotid Artery.
V, A large Vein proceeding from the Thyroide Gland to the Ramus Subclavius.
W, The Glandula Sublingualis lying immediately under the Musculus Mylohyoideus.