Physiology Flashcards
(16 cards)
(Type of teeth
provide a strong cutting action.)
incisors
(Type of teeth
grasp and tear food)
canines
the third molars on either side of each jawbone.
Wisdom teeth
Moves it toward the pharynx to initiate the swallowing reflex
Tongue
Secrete a clear, watery fluid that is rich in salivary amylase.
Parotid glands
Secrete both watery and mucous.
Submandibular or submaxillary glands
Secrete a mucous secretion
Sublingual glands
The Pharynx
The reflex center for swallowing is in the…..
medulla
It prevents entry of air into esophagus during respiration.
• It relaxes during swallowing for about 1 second allowing the bolus to reach stomach.
Upper Oesophageal Sphincter (UES
It relaxes to permit food to enter the stomach,
• then contracts to prevent the backup of stomach contents.
Lower Esophageal Sphincter (LES)
At the opening from the stomach to the small intestine is the …..?
pyloric sphincter
ingested food plus stomach secretions
Chyme
absorption of vitamin B12 in the
small intestine.
Sight, smell, thought and taste of food •
Mediated by Parasympathetic NS
Cephalic phase
• When Food reaches the stomach
• Stimulate release of gastrin which stimulate release of
gastric juice
Gastric phase
Presence of chyme in small intestine initiates enterogastric reflex, transmitted through ENS & autonomic NS that inhibits gastric secretion.
Intestinal phase
