Tertius and intimus Gloutius, the third and innermost buttock Muscle, arising from the outward and lower side of Os Ilium, is implanted into the Top of the great Trochanter.
The Thigh is bended by three Muscles.
Primus Lumbaris, The first Loyn Muscle called Psoas, spred over the bodies of the Lumbal Vertebraes, in the Cavity of the belly; is bred out of the transverse Apophyses of the lower Vertebraes of the back, and being carryed along upon the inner surface of Os Ilium, it is inserted into the smal Trochanter.
I have in Men, oftimes found a little Muscle spred over this, which in its original, being of the length and thickness of a Mans little Finger and fleshy, with a smal and flat Tendon is carried above the Psoas, and when it is come to the Illiac, it looses it self into a broad and very strong Aponeurosis, which firmly combiness the Iliac and Psoas Muscles. And therefore I conceive it is added, in strong Men, that it might straitly embrace the Psoas and hold it firmly in its seat.
It is called Pa••vu•• Psoas, and is more rarely found in Women than in Men: Howbeit in the year 1631. In a very stout Virago or kind of Mol Cut-Purse, it was my hap to see one of these Muscles, she having been hangd for Robberies and Murthers by her committed.
Iliacus Musculus, the Iliac Muscle, takes its rise out of the internal Cavity of Os Ilium, and being by its Tendon Joyned with the lumbal Muscle, it is termina∣ted between the great and little Trochanter,
Pectineus Musculus, The Combe Muscle shootes out of the upper Part of Os Pubis, and is inserted a little below the Neck of the Thigh, on the foreside.
The Thigh is drawn to the inside by the Musculus Triceps or three headed Muscle, which has three originals and as many distinct Insertions.
One of its Heads arises from the upper▪ Part of the share bones or Ossa Pubis; the other arises from the middle of the said bones, and the third from the lowest Part of the said bones▪ and they are inserted into the hinder line of the Thigh, being dis∣posed by course.
The Action of this Muscle is strong and Praevalent, drawing the Thighs inward, when we Climbe Trees, ascend to the Main mast and Ride on Hors-back.
This trebble headed Muscle is the first that receives the Excrementitious Humors of the body which fal into Legs, because of the Vessels which pass that way.
The Thigh is drawn to the outside by very smal Muscles, because the drawing of the Thigh outwards is not very necessary.
The Musculi Quadrigemimi, are four little Muscles, interchangably placed up∣on the Articulation of the Thigh in the hinder▪ Part thereof.
The first and uppermost of the Quadrigemini being longer than the rest and as it were p••ar fashiond, is by others termed Iliacus externus. It arises from the lower and external Part of Os Sacrum.
The second of the Quadrigemini, arises from the Tuberosity or bunchy▪ Part of the Huckle-bone.
The third which is contiguous unto the former, arises from the same Part, and these three are inserted into the Cavity of the great Trochanter.
These three of the Quadrigeminal Muscles, being included in the Cavity of the great Trochanter, do serve likewise to thrust downwards or lengthen out the Thigh When it is stretched a little beyond its natural length, which▪ you may observe in a Man that l••••s upon his Back, with his body and Leg streched out.
They perform this Action in the same manner as the Pterygoideus internus, in∣terposed between the two Jaws, does drive the lower Jaw forwards.
The Quartus Quadrigeminorum Quadratus, is broader and more fleshy than the other three, being distant from the third of the Quadrigemini two Fingers