Chapter 25 Flashcards
What are secretory end pieces known as?
Acini
What are the two types of Acini cells?
- Mucous Acini
2. Serous Acini
What are all the types of Acini?
- Mucous
- Serous
- Seromucous
How do all types of Acini secrete their products?
Through a Process of merocrine secretion.
What happens during Moerocrine Secretion?
Droplets pass out of the cell by fusing with the cell membrane eliminating damage to the cell.
Mucous Acini
-Mucous secretion is slightly viscous because of the production of several mucins.
What is Amylase?
A carbohydrate-splitting enzyme in Mucous Acini that begins to break down starches into long chain sugars.
Serous Acini
A thinner, more watery secretion.
Seromucous Acini
These acini produce both mucous and serous secretions.
Where does secretory control come from?
Autonomic nervous system, particularly the parasympathetic nervous system and us tied to chewing, taste, and smell.
Where is Saliva formed?
Within the Endoplasmic Reticulum of individual cells.
What does Saliva act as?
A Ph buffer, and plays a role in resistance to decay if it is working properly.
What are the functions of Saliva?
- Helps prepare the bolus of food so that it can be swallowed more easily.
- Plays a role in dehydration.
- If there is not enough body fluids, saliva production will be decreased, and the mouth will become dry, a stimulus to drink more water. (xerostomia)
- A Ph buffer, immunoglobulins and lysozyme within saliva play a role in protection of the body. (secretory igA)
What is Xerostomia?
Dry mouth
