ischium

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Related to ischial: ischial bursitis

ischium

[′is·kē·əm]
(anatomy)
Either of a pair of bones forming the dorsoposterior portion of the vertebrate pelvis; the inferior part of the human pelvis upon which the body rests in sitting.
(invertebrate zoology)
References in periodicals archive ?
The increase in spinal load from sitting has been associated with an increase in pressure under the ischial tuberosities.
I treated proximal areas of her legs first with effleurage, kneading and cross-fibre frictions of hamstring attachments at the ischial tuberosities.
These factors resulted in his developing stage 4 right ischial (buttock) decubitus ulcer and a stage 3 right malleolar (ankle) decubitus ulcer.
It is described by some as attaching the sacrum to the ischium (Levangie and Norkin, 2001), and by others as attaching the sacrum, ilium and coccyx to the ischial tuberosity (Agur and Dalley, 2005; Basmajian, 1982) (Figure 1).
The hamstrings comprise three large muscles, namely semitendinosus, semimembranosus and biceps femoris which originate from the ischial tuberosity.
Astacids do not exhibit cyclic dimorphism nor ischial hooks.
Experts point out that this forces the cyclist to ride with his or her ischial protuberances - the ``sit points'' - on the rearward portion of the saddle, something they should be doing anyway .
Autopsy showed a large (12 x 10 x 8 cm), deep-seated abscess of the right hip an osteomyelitis of the ischial tuberosity.
In Great Apes, a chimp "drags himself backwards across the yard arse aloft, ischial scrag nervously puckered" to greet another.
The bigger they are, the harder they fall: implications of ischial curvature in ceratopsian dinosaurs.
Pressure ulcers most frequently develop over the sacrum, ischial tuberosities, trochanters, malleoli, and heels, but they can develop elsewhere, including behind the ears when nasal cannulae are used for prolonged periods.