Definition

Noun: - One of the three bones that form the hipbone: The ischial bone (or ischium) is the lower and posterior part of the hipbone. It is the bone you sit on.

Usage

The term "ischial bone" is used in anatomical and medical contexts to refer specifically to this part of the skeletal structure. - The patient sustained a fracture to the ischial bone in the fall. - In human anatomy, the ischial bone is a major weight-bearing structure when sitting.

Advanced Usage

• "Ischial tuberosity": This is a specific, prominent part of the ischial bone, commonly known as the "sitting bones."
  • The ischial tuberosities are the points of attachment for several hamstring muscles.

Variants and Related Words

• Ischium: This is the standard anatomical term and a direct synonym for "ischial bone."
  • The ischium forms part of the acetabulum, the socket for the hip joint.
• Ischial: (Adjective) Pertaining to the ischium.
  • Ischial pain can result from prolonged sitting on a hard surface.

Synonyms

• Ischium: The primary synonym in technical anatomical language.
• Sitting bone: A common, non-technical term for the ischial tuberosity.

Related Phrases

• Ischial bursitis: Inflammation of a fluid-filled sac near the ischial tuberosity.
  • Cyclists are sometimes prone to ischial bursitis.

Noun

1. one of the three sections of the hipbone; situated below the ilium