Obturator
Obturator (pronunciation: ob·tu·ra·tor, /ɒbˈtjʊəreɪtər/) is a term used in anatomy and medicine. The etymology of the word comes from the Latin "obturare", which means to stop or close up.
Definition
The obturator is a part of the body that closes or obstructs an opening or passage. In anatomy, it often refers to either the Obturator nerve, Obturator artery, Obturator vein, or Obturator canal, all of which are located in the pelvic region.
Obturator Nerve
The Obturator nerve is a peripheral nerve responsible for the sensory innervation of the skin of the medial aspect of the thigh. It also provides motor innervation to the adductor muscles of the lower limb.
Obturator Artery
The Obturator artery is a branch of the internal iliac artery that passes anteroinferiorly (forwards and downwards) on the lateral wall of the pelvis, to the upper part of the obturator foramen, and escapes from the pelvic cavity through the obturator canal.
Obturator Vein
The Obturator vein is a vein that generally drains the adductor region of the thigh, which is the area of the thigh near the adductor muscles, and is near the hip joint.
Obturator Canal
The Obturator canal is a short pathway that allows structures to pass from the pelvic region to the adductor region of the thigh.
Related Terms
- Obturator externus: A muscle in the lower part of the body that helps rotate the hip joint.
- Obturator internus: A muscle that helps control the movement of the hip and thigh.
- Obturator membrane: A thin sheet of connective tissue that covers the obturator foramen in the pelvis.
See Also
External links
- Medical encyclopedia article on Obturator
- Wikipedia's article - Obturator
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