158-167
Hands wrapped around the throat is a common sign of ___________.
choking
The churning movements of the stomach mix food with gastric juice. At this point, the food is a semisolid mixture called ________.
chyme
The _____________ is the flap of tissue that prevents food from entering the windpipe.
epiglottis
The _______________ is a long tube in the digestive tract that connects the back of the mouth with the top of the stomach.
esophagus
The ________________ is a first aid technique that can help clear the blocked airway of a choking person.
heimlich maneuver
The stomach produces ____________ , which is important for the digestion of protein.
hydrochloric acid
Bile is produced in the ___________.
liver
A slippery substance that protects the stomach wall is ___________.
mucus
Swallowing food stimulates ___________ , waves of muscular activity that help propel food through the digestive tract.
peristalsis
The ___________________ controls the rate at which the semisolid food mixture leaves the stomach and enters the small intestine.
pyloric sphincter