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Ornithischian Dinosaurs All terrestrial animals and even marine animals derived from terrestrial stocks have hip girdles, or pelvises, and all hip girdles are composed of three bones: the ilium, ischium, and pubis. All ornithischians are united by a pubis pointing backward, running parallel with the ischium. In the diagram, the pubis is pale orange, the ilium is red, and the ischium is brown. www.ucmp.berkeley.edu /diapsids/ornithischia/ornithischia.html   (174 words)

Ischium definition - Medical Dictionary definitions of popular medical terms Ischium definition - Medical Dictionary definitions of popular medical terms Ischium: Bone making up the lower down back part of the pelvis. MedicineNet does not provide medical advice, diagnosis or treatment. www.medterms.com /script/main/art.asp?articlekey=4053   (74 words)

II. Osteology. 6c. The Bones of the Lower Extremity. 1. The Hip Bone. Gray, Henry. 1918. Anatomy of the Human Body. The ischium is the lowest and strongest portion of the bone; it proceeds downward from the acetabulum, expands into a large tuberosity, and then, curving forward, forms, with the pubis, a large aperture, the obturator foramen. The ridges extend downward, and are continuous with similar ridges on the inferior ramus of the ischium; to the external is attached the fascia of Colles, and to the internal the inferior fascia of the urogenital diaphragm. At birth, the three primary centers are quite separate, the crest, the bottom of the acetabulum, the ischial tuberosity, and the inferior rami of the ischium and pubis being still cartilaginous. www.bartleby.com /107/57.html   (3348 words)

Reference.com/Encyclopedia/Obturator internus muscle The obturator internus muscle originates on the medial surface of the obturator membrane, the ischium near the membrane, and the rim of the pubis. It also arises from the pelvic surface of the obturator membrane except in the posterior part, from the tendinous arch which completes the canal for the passage of the obturator vessels and nerve, and to a slight extent from the obturator fascia, which covers the muscle. A bursa, narrow and elongated in form, is usually found between the tendon and the capsule of the hip-joint; it occasionally communicates with the bursa between the tendon and the ischium. www.reference.com /browse/wiki/Obturator_internus   (313 words)

THE PELVIC GIRDLE Each coxal bone is made up of three fused bones: the ilium, ischium and pubis. The acetabulum is formed by the ischium, ilium and the pubis. The ischium is the inferior posterior bone of the pelvic girdle. www.crnasomeday.com /anatpages/pelvic.htm   (163 words)

Pelvis It is formed by three separate bones which become fused: the ilium, the ischium, and the pubis. The ischium forms the smaller, lower, portion which bears the weight of the body while sitting. The lower of the two segments is called the inferior pubic ramus and it joins with the ischium of the pelvis. www.american.edu /adonahue/k5pelvis.htm   (1163 words)

Chapter 12: THE BONES OF THE LOWER LIMB Each hip bone consists of an ilium, an ischium, and a pubis, all three of which in the adult are fused at the acetabulum to form a single bone. The body of the ischium presents three surfaces: one facing the thigh (femoral), another related to the ischiorectal fossa (pelvic), and still another (posterior), which is continuous with the gluteal surface of the ilium. The superior ramus of the pubis extends superolaterally to the acetabulum, where it is fused with the ilium and ischium, and forms about the anterior one fifth of the acetabulum. www.dartmouth.edu /~humananatomy/part_3/chapter_12.html   (6172 words)

A Case Study Using Fluoroscope to Determine the Vital Elements of Transfemoral Interface Design - Journal of ... It attempts to show the reaction of the femur, ischium, and the pelvis during the stages of gait. In the full socket, the femur was held in 2-3 degrees of adduction during the static radiographs (Figure 1A and Figure 1B), despite 8 degrees of socket adduction. The medial element contained the ischium within the containment area in weight (Figure 2A and Figure 2B) and non-weight (Figure 3A) bearing. www.oandp.org /jpo/library/2002_03_121.asp   (2090 words)

inMotion: Fitting for Hip Disarticulation and Hemi-pelvectomy Level Amputations Plaster is wrapped across pelvis with band under ischium which is molded to fit around ischium to provide a pocket to protect ischium from excessive pressure and to provide stablilty of socket fit. On this model ischium is marked in red, trim lines are marked in fl and an area for build up to strenghten the hip joint is marked as a rectangle. It is important to fit the ischium carefully and to adequately cup it to prevent too high a pressure or "hot spot" which could cause tissue break down. www.amputee-coalition.org /inmotion/mar_apr_99/pros_primer_hip_dis.html   (3188 words)

[No title]   (Site not responding. Last check: ) Each innominate bone is made up of three fused bones: the ilium, the ischium, and the pubis. The ilium is the uppermost and largest and consists of a wide, flattened plate with a long curved ridge (called the "iliac crest") along its border. It extends forward from the ischium and around to the pubis symphysis, where it is joined to the other pubic bone by a tough, fibrous tissue. www.innerbody.com /text/skel18-new.html   (308 words)

[No title]   (Site not responding. Last check: ) X-ray studies revealed an old fracture of the left ischium and a bullet in the soft tissues of the left posterior thigh. The veteran was found to be able to squat and to stand without difficulty and to exhibit four/five muscle strength in the left leg; decreased sensation along the lateral aspect of the left leg and foot; and a full range of motion of the left hip. A longitudinal review of the clinical documentation reveals that the veteran's left lower extremity gunshot wound residuals are principally manifested by subjective left ischium pain after prolonged sitting; a well-healed surgical scar located at the left buttock crease; irregular shaped fracture residuals of the left ischium and no limitation of motion of the left leg. www.va.gov /vetapp/files1/9405118.txt   (5306 words)

WebLecture-Pelvis-Lec09 The ischium forms the inferoposterior part of the acetabulum and consists of a body and a ramus. The ischial tuberosity makes up most of the posterior surface of the ischium, is the site of attachment of many hip muscles and is the structure of primary support during sitting. Fusion of the ischium and pubis at the acetabulum and the junction of these two bones along the ischiopubic ramus form a large foramen, the obturator foramen which faces anterolaterally.  oac.med.jhmi.edu /weblec/templatev1/lec09.html   (534 words)

Dinosaurs - 3 The ilium, above (attached to the spine), and the pubis and ischium, below, formed a robust bony plate at the centre of which was a deep cup‹the hip socket, or acetabulum. The hip socket faced laterally and was pierced or open at its centre for the articulation of the medially projecting proximal head of the thighbone. The ischium was slightly less robust than the pubis, but it too joined its mate in a midline symphysis. www.crystalinks.com /dinos3.html   (2741 words)

Comparison of Ischial Containment Molding | American Academy of Orthotists & Prosthetists As the hip is flexed it is important to note that the ischium rotates posterior relative to the interface and should be accommodated in its motion. The ischial hand hold is created by positioning the ischium on the DIP of the middle finger and the index finger wrapping around the ischium. The hand hold used is similar to those by German methods in which the posterior of the ischium is indicated with the thumb and the index finger pushes medially. www.oandp.org /publications/jop/2006/2006-10.asp   (3566 words)

Dorlands Medical Dictionary (is”ke-o-bul´bər) [ischio- + bulbar] pertaining to the os ischii (ischium) and the bulb of the urethra. (is”ke-o-kap´su-lər) [ischio- + capsular] pertaining to the ischium and the capsular ligament of the hip joint. (is”ke-o-ver´tə-brəl) pertaining to the ischium and the vertebral column. www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_i_13zPzhtm   (3186 words)

Feature articles and warmblood articles - the New Zealand Warmblood Horse Breeders Association Furthermore, the ischium acts as a lever for the attachment of the sacro-sciatic ligament, which is one component of the “dorsal ligament system”. However this mare shows an acceptable acetabulum placement (32 degrees of the pelvic length is composed of ischium), and overall pelvic length (33% of body length). This is ameliorated somewhat by his acetabulum placement, with 35% of the pelvic length in the ischium. www.horsetalk.co.nz /warmbloodhorses/articles/db-pelvic.shtml   (2901 words)

Kansas School Naturalist: Muscle Names - originates on the ischium and femur; inserts on the upper posterior portion of the tibia - originates from the ischium; inserts on the upper posterior surface of the tibia - originates on the pubis and ischium; inserts on the medial surface of the tibia www.emporia.edu /ksn/v42n1-january1996/lowerlimb.htm   (954 words)

[No title]   (Site not responding. Last check: ) The pelvis is composed of several large, flat bones that form by their attachment to the sacrum, a rectangular, boxlike structure that gives shape to the caudal axial skeleton and serves as the point of attachment of the pelvic limbs to the axial skeleton. In the adult animal, the acetabulum is formed by components of the ilium, ischium, and pubis. The ischium is an irregularly shaped bone that forms a portion of the acetabulum and contributes to the caudal floor of the pelvis. cal.vet.upenn.edu /saortho/chapter_27/27mast.htm   (5189 words)

Skeleton (anterior view) Ilium: bone of the pelvic girdle, comprised of the fusion of the ilium, the ischium and the pubic bone. Sacrum: bone that is jointed with the hip bone to form the pelvis. Ischium: one of the bones of the ilium. www.infovisual.info /03/011_en.html   (233 words)

[No title] incision over the lateral aspect of the right hip, fractures through the ischium and pubic rami on the right, fracture of the wing of the right ilium, contusion of the right femoral nerve, and rupture of the right femoral cutaneous nerve. Therefore, we are unable to identify a basis to grant a compensable evaluation for the scar on the medial surface of the right thigh. Residuals of a Healed Fracture of the Right Ischium and Pubic Rami While the service medical records show that the veteran sustained a fracture at the right ischium and pubic rami from the go-cart accident in service, the medical evidence since service does not demonstrate that the appellant has any residuals from the fracture. www.va.gov /vetapp/files1/9404144.txt   (3480 words)

Coxa 2 The body of the ischium forms the remaining one-third of the acetabulum and sends off an inferior process - the ischial ramus (mentioned above). Roughened projections of the ischium called ischial tuberosities form the posterior-lateral borders of the bone; these projection bear the weight of the body when seated. Inferior to the ischial spines is the lesser sciatic notch through which a number of nerves and blood vessels pass to and from the pelvis and thigh. bioweb.uwlax.edu /APlab/Table_of_Contents/Lab_04/Coxa_2/coxa_2.html   (262 words)

Remipedia: Species This limb appears to be conservative in the remipedes and always has seven articles, except in Plemothra where article 1 (coxa) appears to be missing or not illustrated. In Cryptocorynetes, Godzillus, Lasionectes and Speleonectes the first three articles (coxa, basis and ischium) are fused and the endites are absent. The carpus (article 5) is expanded and the propodus (article 6) may be entire or subdivided, probably to give it more flexibility for catching prey. www.crustacea.net /crustace/remipedia   (613 words)

Univ of Michigan - Gross Anatomy - Bones of the Pelvis & Perineum paired; the os coxae forms the lateral part of the pelvis; it is formed by three fused bones: ischium, ilium & pubis; also known as the innominate bone the part of the ischium that participates in the formation of the acetabulum it articulates with the ilium and the pubis at the acetabulum; the body of the ischium forms 2/5 of the acetabulum www.med.umich.edu /lrc/coursepages/M1/anatomy/html/anatomytables/bones_pelvis_perineum.html   (1068 words)

Dinosauria Translation and Pronunciation Guide N Nomingia is identified as an oviraptorosaur based on the pneumatized centra of the proximal tail vertebrae, deep hypapophyses on the underside of least 3 anterior dorsal vertebrae, and the posteriorly concave profile of the ischium. Parts of the specimens such as the forelimbs and ischium are too incomplete or poorly preserved to permit a close comparison with better known small theropods, making a more precise classification difficult. The right ischium of the holotype was originally misidentified as part of the frill of the horned dinosaur Zuniceratops. www.dinosauria.com /dml/names/dinon.htm   (2087 words)

The Pelvis in the Mammalia and the Origin of Mammals (1879) Thus the pectineal process is represented by a less prominent and more elongated ridge; the metischial process widens out into a mere triangular expansion or "tuberosity," of the ischium, and the symphysial union of the ischia is short. The interval between this and the anterior end of the ilium answers to the cotyloid end of the pubis in a lizard, but it does not ossify. Unless the like should prove to be the case in the Dicynodonts, it is in the Mammalia alone that the subsacral portion of the ilium elongates backwards, carrying with it the pubis and the ischium, between which a large rounded obturator fontanelle is developed. aleph0.clarku.edu /huxley/SM4/Pelvis.html   (3986 words)

Coelurosaur ischium unique?   (Site not responding. Last check: ) Ischium (1) reduced to less than 2/3 length of the pubis; (2) lacking an ischial foot; and (3) possessing a prominent, triangular obturator process (placed more than 25% down the ischial shaft). If the answer to the first question is yes and the answer to the second question is no, then the combination of any two (of the three) characteristics would be diagnostic for coelurosaurs (and only for coelurosaurs). P.S. I haven't found any exceptions yet, but I have this unsettling feeling that there may be exceptions to such a uniquely diagnostic coelurosaur ischium (especially non-coelurosaurs which might possess two of the three). dml.cmnh.org /2001Dec/msg00580.html   (191 words)

ischium ischium is one of the topics in focus at Global Oneness. Its deep boundaries are—in front, the pubic arch and the arcuate ligament of the pubis; behind, the tip of the coccyx; and on either side the inferior rami of the pubis and ischium, and the sacrotuberous ligament. The space is somewhat lozenge-shaped and is limited on the surface of the body by the scrotum (in males) or the vulva (in females) in front, by the buttocks behind, and laterally by the medial side of the thigh. www.experiencefestival.com /ischium   (346 words)

YourSurgery.Com®-Hip Arthroplasty The hipbone forms the bony connection between the spine and leg and is formed by the fusion of three bones, the ilium, ischium and pubis. The ischium protrudes backwards and is the bone that is sat upon The hipbone is made up of three bones, the ilium, ischium and pubis (middle). www.yoursurgery.com /ProcedureDetails.cfm?BR=5&Proc=27   (423 words)

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