Chapter 25 Flashcards Preview

Dental Anatomy Exam 5 > Chapter 25 > Flashcards

Flashcards in Chapter 25 Deck (14)
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1
Q

What are secretory end pieces known as?

A

Acini

2
Q

What are the two types of Acini cells?

A
  1. Mucous Acini

2. Serous Acini

3
Q

What are all the types of Acini?

A
  • Mucous
  • Serous
  • Seromucous
4
Q

How do all types of Acini secrete their products?

A

Through a Process of merocrine secretion.

5
Q

What happens during Moerocrine Secretion?

A

Droplets pass out of the cell by fusing with the cell membrane eliminating damage to the cell.

6
Q

Mucous Acini

A

-Mucous secretion is slightly viscous because of the production of several mucins.

7
Q

What is Amylase?

A

A carbohydrate-splitting enzyme in Mucous Acini that begins to break down starches into long chain sugars.

8
Q

Serous Acini

A

A thinner, more watery secretion.

9
Q

Seromucous Acini

A

These acini produce both mucous and serous secretions.

10
Q

Where does secretory control come from?

A

Autonomic nervous system, particularly the parasympathetic nervous system and us tied to chewing, taste, and smell.

11
Q

Where is Saliva formed?

A

Within the Endoplasmic Reticulum of individual cells.

12
Q

What does Saliva act as?

A

A Ph buffer, and plays a role in resistance to decay if it is working properly.

13
Q

What are the functions of Saliva?

A
  • 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)
14
Q

What is Xerostomia?

A

Dry mouth