The muscle arises by a wide flat tendon from a narrow line on the lateral surface of the ischium dorsal to the ventral ischiatic tubercle.
The ventral ischiatic tubercle is the angle formed by the ventrally projecting ischium at the point (near its midlength) where the ischium overlaps and lies lateral to (and fused to) the pubis.
The entire origin is from a strongly curved line, the middle part of which attaches to the ventral edge of the ischium posterior to the ventral ischiatic tubercle.
The ilio-ischiatic fenestra is a large oblong opening behind the acetabulum between the ilium and the ischium.
The iliac recess is a concavity dorsolateral to the sharply curving posterior end of the internal ilio-ischiatic crest.
The oblique iliac crest is a pronounced blunt ridge on the ventral surface of the ilium and extends from the posterolateral corner of the last synsacro-thoraco-lumbar vertebra to near the anteroventral border of the ilio-ischiatic fenestra.
The division diverges from the remainder of the nerve, as the latter passes through the ilio-ischiatic fenestra, and penetrates the dorsal surface of M.
Immediately after emerging from the ilio-ischiatic fenestra, the division turns anteriorly and passes deep to M.
In some cases the origin of pars postica does not include the dorsal end of the internal ilio-ischiatic crest nor the ilium posterior to it.
The anus is centrally situated in the depression formed between D D, the ischiatic tuberosities, and the double folds of the nates.
The posterior perinaeal space may be described on the surface by two lines drawn from D D, the ischiatic tuberosities, to C, the point of the coccyx, whilst the transverse line between D and D bounds it above.
The gibbon alone has the rudiments ofischiatic callosities.
As to this last appendage, it is never wanting in these monkeys, which are also provided with buttock orischiatic callosities, and often with cheek-pouches.
The callosities on the ischiatic bones are large; in many species they become very turgescent at certain seasons, the enlargement extending sometimes to the tail.
The posterior ends of the ischiatic bones of the pelvis are rough, flattened, and broad, for the attachment of the fleshy callosities mentioned above.
Dislocation into the vicinity of the Ischiatic Notch.
Contrary to what we have indicated in the case of the dog, the distance which separates the ischiatic tuberosities is inconsiderable in proportion to that which we find between the external iliac spine of one side and that of the opposite.
The bi-ischiatic diameter does not even equal the width of one iliac bone measured at the level of its crest (Fig.
We draw particular attention to what we have just noted in regard to the transverse proportions of the iliac and ischiatic regions of the dog and the cat.
Section of theischiatic nerve delayed the phenomena.
The head of the bone may, from this cause, get into the sacro-ischiatic notch.
It is but rarely that the bowels protrude through the sacro-ischiatic notch, or through the obturator foramen, or by the side of the vagina, or betwixt the bladder and rectum.
In mismanaged cases, I have found on dissection the lower end of the bone lying in the sacro-ischiatic notch, and a process advancing very different from reparation—necrosis.
Displacement into the sacro-ischiatic notch is attended with great and remarkable inversion of the toes, slight shortening of the limb, the prominence of the head of the bone felt under the gluteus maximus.
They have no tail, and the Gibbons (Pithecus lar), which occupy the lowest rank among them, possess only the rudiments of ischiatic callosities.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ischiatic" in a variety of sentences. We hope that you will now be able to make sentences using this word.
