Digestive System Quiz Review Flashcards
Accessory organs
Liver, pancreas, gallbladder, salivary glands
Organs in the alimentary canal
Pharynx, esophagus, stomach, small intestine, large intestine
Innermost layer of the GI tract
Mucous membrane (mucosa)
What type of tissue is the mucous membrane made of?
Epithelial and connective
Which layer of the GI tract contains blood vessels and nerves?
Submucosa
What is the outer layer of the GI tract called?
Serous layer (serosa)
Movement of tube, smooth muscles
Circular: affects ?
Longitudinal: affects ?
Muscular layer of GI tract
Diameter, length
Series of contractions/relaxations which moves food along tube
Wavelike motion
Peristalsis
“Chewing”
Functions to reduce food and mixing it with saliva
Mastication
Fold of tissue which connects tongue to floor of mouth
Frenulum
Projection blocking nasal cavity during swallowing
Uvula
Baby teeth are called…?
Primary teeth
Secondary teeth are called…?
Permanent teeth
Three types of teeth and their purposes
Incisors: for biting
Canines and cuspids: for tearing (cone-shaped)
Bicuspids and molars: grinding
Purpose of salivary glands?
Secrete saliva, mix and dilute food
Enzyme that breaks down carbs, secreted by serous cells
Salivary amylase
Mucous cells…?
Secrete mucous
Which salivary gland is largest?
Parotid
Which salivary gland is under your tongue?
Sublingual
First stage of swallowing
Called Buccal phase
Voluntary
Food chewed/mixed with saliva and forms of bolus, bolus pushed into pharynx by tongue
Second stage of swallowing
Pharyngeal-esophageal phase
Involuntary
Transports food thru pharynx/esophagus, breathing stops briefly
Third stage of swallowing
Involuntary
Food enters esophagus and stomach
