musculus sphincter ani externus

ریشه

From the Latin word 'musculus' meaning 'muscle', 'sphincter' meaning 'band' or 'tightener', 'ani' referring to the anus, and 'externus' meaning 'external'.

مثال

• The musculus sphincter ani externus contracts to keep the anus closed.
• Damage to the musculus sphincter ani externus can cause difficulty in controlling bowel movements.
• The musculus sphincter ani externus relaxes during defecation.