Human anatomy exam 3 Chapter 24 Flashcards
What is the digestive process in order?
- ingestion
- digestion
- absorption
- protection
What are the layers of the wall?
- Mucosa
- Sub mucosa
- Muscular
- Serous membrane
what does the layers of the wall do?
- mucousa secretes absorbs and protects
- sub mucousa has blood vessels nerves and lymphatic vessels
- muscular moves materials
- serious lubircates the organs
what neural aspects are associated with the digestive system?
- sympathetic
- parasympathetic
- myenteric plexus
- Long and short reflex
what does the mouth do?
facilitates feeding and prepares food for digestion
what does the tongue do?
aids in the bolus formation and has papillae which are the taste buds and facilitates food manipulation
How many palates are there?
soft and hard palate
how many primary teeth are there? and how many secondary?
primary teeth are 20
-secondary teeth are 32
what are the secondary teeth total made up of?
- 8 incisors
- 4 canines
- 8 bicuspids
- 12 molars
what do the salivary glands contain in the salivea
- mostly water
- salivary amylase
- Lingual lipase
- Mucus
- IgA
- electrolytes
What does the pharynx do?
- deglutition
- has pharyngeal muscles
what does the esophagus contain?
- esophageal hiatus
- cardiac sphincter aka gastroesophageal sphincter
what are the layers of the esophagus
- mucosa
- submucosa
- muscular muscles include smooth and skeletal
- adventitia
what are the 4 parts of the stomach
- Cardiac- near opening of the esophagus
- Fundus- most superior part of stomach
- The body- main part of the stomach
- pyloric- near the duodenum
what protects the stomach?
- alkaline mucuc
- Epithelial cell replacement every 3-6 days
- tight junction between epithelial cells which prevent gastric juices from seeping between cells
