Organisation of Cells in Tissues and Organs Flashcards
(24 cards)
What are the three major salivary glands?
Parotid
Submandibular
Sublingual
Which gland has the most serous secreting cells and the least mucous secreting cells?
Parotid gland
Which gland has the most mucous secreting cells and the least serous secreting cells?
Sublingual gland
Which gland has a number of serous and mucous secreting cells in between the other two?
Submandibular
What are the ducts like in the salivary glands?
Striated
Why do the salivary glands have striated ducts?
The striated ducts modify the saliva that passes through them by pumping salt out of the fluid
What are the four major layers of the digestive tract? (starting from the lumen and going out?
Mucosa
Submucosa
Muscularis Externa
Serosa/Adventitia
What are the three parts of the mucosa?
Epithelium
Lamina propria
Muscularis mucosae
Where does the epithelium sit in the mucosa?
On the basal layer
What type of tissue is the lamina propria?
Loose connective tissue
What type of tissue is the muscularis mucosae?
Smooth muscle
What type of tissue is the submucosa?
Loose connective tissue
What type of tissue is the muscularis externa?
Two thick layers of smooth muscle
inner circular layer and outer longitudinal layer
What type of tissue is the serosa/adventitia?
Outer layer of connective tissue
What are the different types of mucosa?
Protective
Secretory
Absorptive
Protective and absorptive
What type of epithelia does protective mucosa have?
Stratified squamous
What type of epithelia does absorptive mucosa have?
Simple columnar with villi and tubular glands
What type of epithelia does secretory mucosa have?
Simple columnar with tubular glands
What type of epithelia does protective and absorptive mucosa have?
Simple columnar with tubular glands
What is the digestive tract’s nervous system called?
Enteric nervous system
What are the layers of the trachea?
Airway
Respiratory epithelium
Lamina propria
Hyaline cartilage of tracheal ring
What are bronchi?
Large diameter airways with hyaline cartilage in their wall
What are bronchioles?
Smaller than bronchi, no cartilage, smooth muscle in their walls
What type of epithelial cells do alveoli have?
Simple squamous
