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Biomechanics of the sacroiliac joints: nutation and counternutation
Ethmoidal air cells
Paranasal sinuses
Arterial blood supply of ureters (pelvic and intramural parts)
Biomechanics of the head and neck: circumduction
Biomechanics of the head and neck: circumduction
Sphenoid sinus
Frontal sinus
Relations of stomach (anterior view)
Arterial blood supply of ureters (abdominal part)
Overview of trigeminal nerve (CN V)
Divisions of trigeminal nerve (CN V)
Relations of stomach (posterior view)
Exploring differences: male and female pelvis comparison
Venous drainage of male urethra
Arterial blood supply of male urethra
Parts of male urethra
Male urethra
Biomechanics of the sacroiliac joints: nutation and counternutation
Male vs. female pelvis
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Ethmoidal air cells

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Ethmoidal air cells

The ethmoidal air cells (also called ethmoidal sinuses) are small air-filled spaces positioned in the ethmoid.

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