Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Histology 2 > Salivary Glands > Flashcards

Salivary Glands Flashcards

1
Q

Name the three types of oral mucosa

A
  1. Lining
  2. Masticatory
  3. Specialised (taste buds)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

In general, what is the oral mucosa composed of

A
  1. Stratified squamous epithelium
  2. Lamina propria of dense connective tissue
  3. Submucosa of loose connective tissue
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is lining mucosa found in the oral cavity

A
  1. Inside of the lips
  2. Buccal surfaces
  3. Soft palate
  4. Floor of the mouth
  5. Inferior surface of the tongue
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Is the lining mucosa epithelium keratinised

A

No; however, the vermillion border of the lips is keratinised

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where is masticatory mucosa found in the oral

A
  1. Hard palate

2. Gingiva (gums around the teeth)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Is the masticatory mucosa epithelium keratinised

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Is the dorsum of the tongue keratinised

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe the different planes of the intrinsic muscles of the tongue

A

Skeletal muscle bundles in:

  1. Longitudinal,
  2. Transverse, and
  3. Vertical planes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Name the four types of papillae on the tongue

A
  1. Filiform (no taste buds)
  2. Fungiform
  3. Foliate
  4. Circumvallate
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the diameter of the taste buds

A

These multicellular chemoreceptive units are around 50um in diameter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 6 basic functions of saliva

A
  1. Protection
  2. Buffering
  3. Tooth integrity
  4. Antimicrobial activity
  5. Digestion
  6. Taste
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How much saliva is secreted per day

A

600-1000ml per day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name the 3 paired main salivary glands

A
  1. Parotid
  2. Submandibular
  3. Sublingual
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where are the minor salivary glands located

A

In the submucosa and have short ducts that open directly onto the mucosal surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where does the parotid duct enter the oral cavity

A

A papilla opposite the upper second molar tooth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What nerve innervates the parotid gland

A

Auriculotemporal nerve

17
Q

Where does the submandibular duct enter the oral cavity

A

Terminates on the sublingual caruncle near the base of the lingual frenum

18
Q

Describe the innervation to the submandibular gland

A

Submandibular ganglion

19
Q

What cranial nerve innervates the submandibular gland

A

Facial nerve (CNVII)

20
Q

Where does the sublingual duct enter the oral cavity

A

Anterior part = single duct that joins the submandibular duct
Posterior part = several small ducts that end on the sublingual fold

21
Q

Describe merocrine secretion

A

Exocytosis: vesicles fuse with the cell membrane and discharge their contents to the extracellular space

22
Q

Name the two types of duct

A
  1. Simple (duct is unbranched)

2. Compound (has a branching duct system)

23
Q

What type of duct are salivary glands

A

Compound tubuloacinar glands

24
Q

Name the classification of salivary glands

A
  1. Serous

2. Mucous

25
Q

Describe the cells of the serous acini

A

Typically wedge-shaped and have a prominent nucleus in the basal part of the cell

26
Q

Where do mucous cells tend to be found

A

In the tubular element of the tubulo-acinar glandular structure

27
Q

What is the serous demilune (artifact)

A

Crescent-shaped collection of cells at the end of the serous secretory unit

28
Q

Where are minor salivary glands absent in the oral mucosa

A

The gingiva and the anterior part of the hard palate

29
Q

Describe the structure and action of the minor salivary glands

A

Predominately mucous in form and exhibit a continuous, slow secretory activity

30
Q

Name an example of the minor salivary glands that are entirely serous

A

The von Ebner’s glands

31
Q

Describe the different stages of the duct system within the salivary glands

A

Intercalated duct -> striated duct -> excretory duct

32
Q

What cells make up the intercalated duct

A

Cuboidal cells

33
Q

Describe the cells of the striated duct

A

Columnar cells and they have their nucleus in a central position

34
Q

What are the striations at the basal surface of the striated ducts

A

They are infoldings of cell membrane accompanied by lines of mitochondria to power the molecular pumps within the membranes

35
Q

What cells make up the excretory ducts

A

Pseudostratified columnar epithelium with tall columnar cells and small basal cells

36
Q

What happens to the lining of the excretory ducts as they reach the surface of the oral cavity

A

The lining becomes stratified squamous epithelium, similar to that of the oral mucosa

Histology 2 (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions