Myskotomia, or, The anatomical administration of all the muscles of an humane body, as they arise in dissection as also an analitical table, reducing each muscle to his use and part / collected for private use, by William Molins ... ; and published for the general good of all practitioners in the said art.

If you please to take off the whole Arm with the Sca∣pula now, the Dissection of these following Muscles will be the easier per∣formed.

Deltois

ARiseth generally nervous, first, for∣ward from the middle of the Cla∣vicle, where he is broadest, next the Os Humeri: Secondly, from the top of the Scapula, where he is joyned to the Cla∣vicle: Thirdly, from the whole Spine of the Scapula; These originations present∣ly growing fleshy, descend, and narrow∣ing, becomes a strong Tendon, external∣ly fleshy, internally nervous, and is im∣planted transversly under the neck of the Os Humeri.

Biceps

ARiseth first externally from the top of the Acetabulum Scapulae, by a long and round Tendon, and so runs under the ligament of that juncture over the head of Os Humeri, and through a Channel insclupt for him there; where he is bound in by a proper ligament: Secondly, he ariseth broad, fleshy and nervous from the Process Anchoriformis, and is carried over the internal head of Os Humeri, and so descending, meets with the other, and makes one strong and fleshy Muscle, and narrowing himself, becomes a strong thick, large, round and nervous Ten∣don, and is inserted into an oblong Pro∣minence under the upper head of the Radius.

Octavus Humeri Placentini

ARiseth by a short and nervous origi∣nation, from the Process Anchorifor∣mis, near the origination of the Deltois, and so descending, becomes something long, large and fleshy, and is by a strong Tendon implanted into the middle of the Os Humeri.

Through the body of this Muscle doth pass a Nerve, which serves the rest of the Muscles. But in this Dissection the Masters had no perforation nor Nerve through him, for the Nerve ran by.

Brachieus

ARiseth (about the middle of the Os Humeri, near the insertion of the Deltois and Pectoralis) double, broad and fleshy, partly by the external, partly by the internal side of the said Bone, but joyning presently, and firmly adhering to the Bone: He in descension becomes large, till at last he terminates broad and fleshy in the ligament of the joynt, as well as in the Appendices of the Cubitus and Radius.

Gemellus Major

ARiseth doubly, first, broad and strong, partly fleshy, partly nervous, from the lower part of the Scapula, where it hath a peculiar Cavity a little under the neck of it, and growing fleshy, descends, and joyns himself to the internal side of the Os Humeri, where he meets with his other fleshy origination, and so making one, is carried down to the internal side of the Process of the Olecranium, and is there implanted.

Gemellus Minor

ARiseth nervous from the neck of the Os Humeri, and so becoming fleshy, descends to the middle of Os Hume∣ri, and mixeth himself with the for∣mer inseparably, and at length is insert∣ed partly fleshy, partly nervous, into the external side of the Olecranium.

Palmaris

ARiseth round and nervous from the internal extuberance of the Os Hu∣meri, presently becoming fleshy and nar∣row, about the midst of the Cubite is carried something obliquely, and is con∣verted into a long and round Tendon, and passing over the internal ligament of the Wrist, comes to the Palm, and there expands himself into a most broad Tendon, and is inserted laterally into the first joynts of the Fingers.

Caro Musculosa Quadrata

ARiseth from the Membrana Carnosa, under Mous Lunae, where the eighth Bone of the Carpus is placed, and from thence goes under Palmaris to the mid∣dle of the Palm, and is inserted into the outside of that Tendon that sepa∣rates the little Finger from the rest.

Flexor Carpi interior

ARiseth sharp, fleshy and nervous from the inner extuberance of the Os Hu∣meri, and so running fleshy the whole length of the Cubite to whom he ad∣heres, at the Wrist hath his insertion into the fourth bone of it, partly ner∣vous, partly fleshy.

Flexor Carpi exterior

ARiseth as the former from the same extuberance, and so running some∣thing transversly, (near the external part of Primi Digitorum flectentium) is fixed to the Radius; and a little before he comes to the Carpus, becomes a round Tendon, which cleaving to the transverse ligament, runs under him, and inlarging himself, is inserted in that Os Me∣tacarpi that stands before the little Finger.

Flexor secundi internodii perforatus

ARiseth round and nervous from the same part of Os Humeri, under the former, and so growing more broad and fleshy about the middle of Cubitus and Radius, something adhering to them, goes forward, and becomes totally round and fleshy near the Wrist, where he is divided into four fleshy portions, from which proceed so many round Ten∣dons; all which are involved in one pro∣per Mucaginous and thin Coat; and so running internally under the ligament, get through the Palm, and then distri∣bute to the first and second joynts of the four Fingers, as many Tendons which are perforated a little before their insertion, for transmission of the Ten∣dons of Tertii internodii Flexor.

Flexor tertii internodii perforans

ARiseth membranous some small part of him from the same extuberance as the former; the rest from the root of the forward Process of the Olecranium; then he becomes exactly round and fleshy, running under the former, and adhering on the internal side to the Cu∣biteus, on the external to the Primi Pol∣lici Flexor, and descending about the middle of the Cubite, they divide and make their progress through the Fisures of the other, and are inserted into the third joynt of the Fingers.

Flexor tertii internodii Pollicis

ARiseth round and fleshy from the Os Cubiti, and so running along by the Radius, to which he adheres; as also to the Membrain, that joyns the Cubitus and Radius, he comes to the Wrist, where he becomes a round nervous Tendon, having also a proper thin Mucaginous Mem∣brain, and so running forward, is inserted into the third joynt of the Thumb by a something broad Tendon.

Pronator Radii Teres

ARiseth from the root of the inward Prominens of the Os Humeri, and from the internal side of the Os Cubiti, and is there joyned by a large fleshy be∣ginning to the Radius; and so descend∣ing obliquely by his inner side, a lit∣tle above the middle, is implanted to him fleshy; from whence a nervous head proceeds, which is inserted into the ex∣ternal part of the Radius.

Pronator Quadratus

ARiseth from the inferior and inter∣nal part of the Cubite near the Wrist, running transversly over the ligament that joyns the Cubite and Radius, and so implants himself fleshy to the internal part of the Radius.

Flexores primi internodii

ARise round, long and slender from the Membrains that involve the Tendons of Tertii internodii Flexores, and so pas∣sing on fleshy, are inserted by a round nervous Tendon into the first joynts of the Fingers, and are best shown by raising one from his origination, and leaving him in his insertion, and the other e contrario.

Primi internodii pollicis flexor primus

ARiseth from the upper part of the An∣nular ligament near the Thumb fleshy, and ascending encompasseth the first joynt of the Thumb intirely, and is in∣serted into the head of that joynt fleshy.

Secundus

ARiseth fleshy partly from the same li∣gament, and partly from Os Carpi next the Thumb, and running under the other, is implanted into the same joynt, from the root, even to the middle of him.

Secundi internodii pollicis flexor primus

ARiseth broad, thin and fleshy from that Os Metacarpi that receives the fore-Finger, a little below his head, and running towards the Thumb, grows something Triangular, is inseretd by a membranous Tendon into the head of the second joynt of the Thumb, on the side next the fore-Finger.

Secundus

ARiseth broad and fleshy from the Os Metacarpi of the middle Finger, and running to the Thumb, is inserted into the middle of the second joynt of it.

Tertius

ARiseth broad and fleshy from the Os Metacarpi of the third Finger, and is implanted in the same place with the former.

Quartus

ARiseth fleshy from the Os Metacarpi of the little Finger, about the middle of it, and running under the other, is in∣serted into the same joynt as the former.

Minimi Digiti Abductor

ARiseth fleshy from the fourth bone of the Carpus, and so extending him∣self by the Metacarpe, is inserted into the external side of the first bone of the little Finger.

Pollicis Abductor

ARiseth nervous near the Flexor primi internodii pollicis, from the Os Carpi that sustains the Thumb, and becoming fleshy, implants himself by a membra∣nous Tendon into the first joynt of the Thumb.

Pollicis Adductor

ARiseth fleshy from the outward and hinder part of that Os Metacarpi that sustains the fore-finger, and is in∣serted fleshy and broad to the internal side of the Thumb at the first joynt.

Interossei

ARise fleshy, round and long from the bones of the Metacarpe, and at the roots of the Fingers become Tendons, and are inserted laterally from the first to the second joynts.

Extensor Carpi exterior

ARiseth from the edge which is above the exterior extuberance of the Os Humeri, by a broad nervous beginning; then growing more fleshy, he runs by the Radius according to its length, and be∣ing got half-way, he converts himself in∣to a strong Tendon, which presently di∣vides himself into two more broad, then thick, and so descending by the Radius, pass under the Annular ligament beyond the Carpus, and are inserted into the Os Metacarpi of the fore-Finger and se∣cond Finger.

Extensor Carpi interior

ARiseth from the root of the external eminency of the Os Humeri; as also from the top of the Cubite, and being carried according to his Longitude, near the Carpus is converted into a strong and round Tendon, by which he is inserted into a Sinus above the lower Appendix of the Cubite, and into the upper part of the Os Metacarpi of the little Finger.

Digitorum 2^di & 3ⁱⁱ internodii tensor

ARiseth partly fleshy, partly nervous from the external extuberance of the Os Humeri, and suddenly becoming more fleshy, descending between the two Ex∣tensors of the Carpus; and narrowing, divides himself into three round Ten∣dons, who are included in a common thin mucaginous Coat, and are so carried under the Annular ligament; passing which, they divide themselves, and are inserted into the fore, middle, and third Fingers, at the second and third joynts.

Minimi Digiti tensor

ARiseth sharp and nervous from the same part as the former, and for al∣most half-way is so united to him, that they seem all one; but coming to the transverse ligament, he becomes a round nervous Tendon, which is implanted into the first and second joynts of the little Finger.

Supinator Radii Longus

ARiseth fleshy from the middle of Os Humeri, and running obliquely over the Radius, at the bottom of it he be∣comes a membranous Tendon, and is fast∣ned to the upper part of the Appendix of the said Radius, tending something inward.

Pollicis tertii ossis tensor

ARiseth fleshy from the external part of the Cubite, where the ligament that joyns it and Radius grows membranous, and runs obliquely to the said Radius, whose Appendix so soon as it reacheth, it becomes a round Tendon, and getting un∣der the transverse ligament, is inserted in the third bone of the Thumb.

Secundi & tertii Pollicis tensor

ARiseth fleshy from the same place of the Cubite as the former, and ascends obliquely over the Radius, and divides himself into two unequal parts; yet sticking together, and is carried not onely in a proper ligament, but in a pro∣per Chanel at the Appendix of the Ra∣dius; the upper part remaining some∣thing fleshy, yet at last becomes a round Tendon, and is inserted into the Os Car∣pi that receives the Thumb; the other is presently subdivided into two small por∣tions of flesh, and they become Ten∣dons: The first of which is inserted into the root of the first joynt of the Thumb; the other by a Membrain fixeth him∣self to the second and third joynts of the Thumb.

Indicem Abducens

ARiseth with an exact fleshy beginning from the middle of the Cubite, and so running obliquely to the Appendix of the Radius, he becomes two Tendons, which by a proper Sinus in the said Ap∣pendix, are transmitted under the Annu∣lar ligament over the Metacarpe, and the upper Tendon is carried to the root of the little Finger; the other is implanted into the root of the second Finger, both obliquely.

Supinator Radii Brevis

ARiseth fleshy from the external part of the ligament of the lower head of the Os Humeri, and from the posterior Process of the Cubite, and running ob∣liquely (outwardly membranous, inwardly fleshy) recovers the middle of the Radius, and is there strongly implanted into it.

Primi internodii Extensores

ARise fleshy, long, round and slender from the bones of the Metacarpe, and so running to the roots of the Fin∣gers, are inserted laterally to the first and second joynts of the Fingers, and are to be raised as the Flexores primi internodii.