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Tense laid back ear position indicating unhappiness. Mouth and lips are also tense, which may indica
Gallbladder with gallstones. Note the stones in the hepatic duct, gallbladder, and common bile duct.
Structures of the internal nose, mouth, and throat.
The oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.
The mask covers both the mouth and nose to prevent exposure to body fluids and airborne droplets.