Landmark · Skeletal system
Ischial tuberosity
Tuber ischiadicum
- System
- Skeletal system
- Regions
- Trunk, Pelvis, Lower limb
- Side
- Left and right
- Landmark on
- Hip bone
DescriptionUnreviewed
The ischial tuberosity (or tuberosity of the ischium, tuber ischiadicum), also known colloquially as the sit bones or sitz bones, or as a pair the sitting bones is a large swelling posteriorly on the superior ramus of the ischium.
It marks the lateral boundary of the pelvic outlet.
When sitting, the weight is frequently placed upon the ischial tuberosity.
The gluteus maximus provides cover in the upright posture, but leaves it free in the seated position.
The distance between a cyclist's ischial tuberosities is one of the factors in the choice of a bicycle saddle.
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Source: Wikipedia · Text licence: CC BY-SA 3.0 · This text comes from the source data and has not been reviewed by a person yet.
Names
- Latin
- Tuber ischiadicum
- English
- Ischial tuberosity
- French
- Tubérosité ischiatique
- Spanish
- Tuberosidad isquiática
- Portuguese
- Tuberosidade isquiática