Brainscape's Knowledge GenomeTM

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


See full index

Histology > Teeth, Tongue, & Salivary Glands > Flashcards

Teeth, Tongue, & Salivary Glands Flashcards

1
Q

what is a tooth composed of?

A

internal soft tissue (pulp), 3 calcified tissues: enamel, cementum, & dentin

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

what are calcified dental tissues made of?

A

calcium hydroxapatite

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

major parts of teeth?

A

enamel covered crown, cementum covered root, & a cervix

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

enamel

A
  • highly calcified matrix
  • 2 glycoproteins: enamelin & amelogen
  • acellular after tooth eruption
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

dentin surrounds?

A

pulp chamber & pulp root canal

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

what is dentin made of?

A

calcified matrix of collagen fibers

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

how is dentin made?

A

odontoblasts

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

where are odontoblasts located?

A

periphery of pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

dentinal tubules

A

tunnel-like spaces within dentin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

cementum

A

collagen containing calcified matrix produced by cementoblasts

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

cementocytes

A
  • in apical region of cementum in lacunae

- send processes in canaliculi towards periodontal ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

dental pulp

A

gelantinous CT with odontoblasts in peripheral layer; contains fibroblasts, mesenchymal cells, & thin collagen fibers

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

what is special about dental pulp?

A

richly vascularized, sympathetic nerve fibers (PAIN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

periodontal ligament

A
  • dental support
  • dense irregular CT
  • collagen fibers —> principle fiber bundles
  • suspends tooth in alveolus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

gingivae

A
  • covered by stratified squamous epithelium & contains dense irregular CT
  • attaches to enamel surface via hemidesmosomes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

alveolar bone

A
  • attachment site of periodontal ligament

- inner layer (cribriform plate), outer layer (cortical plate), & intervening layer (spongiosa)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

tongue

A

divided into anterior 2/3 and posterior 1/3 by sulcus terminalis & ends in a shallow pit called foramen cecum

18
Q

what kind of epithelium does the tongue have?

A
  • dorsal: stratified squamous parakeratinized epithelium
  • ventral: stratified squamous nonkeratinized
  • both have lamina propria & submucosa
19
Q

what constitutes the bulk of lingual tissue?

A

muscular core

20
Q

lingual papillae

A

on dorsal surface, classified into 4 types

21
Q

filiform papillae

A

short, narrow, highly keratinized, above tongue surface

22
Q

fungiform papillae

A

mushroom shaped above tongue surface

23
Q

foliate papillae

A

shallow, longitudinal furrows located on tongue lateral aspect

24
Q

circumvallate papillae

A

large, circular & surrounded by moat like furrow; anterior to sulcus terminalis

25
Q

taste buds

A
  • intraepithelial sensory organs

- 4 types: dark, light, intermediate, & basal

26
Q

salty & sour taste due to?

A

specific ion channels in taste buds

27
Q

bitter & sweet taste due to?

A

specific membrane receptors

28
Q

umami taste

A

detects carboxylate ion on glutamic acid

29
Q

loss of taste

A

ageusia, partial loss= dysgeusia

30
Q

lingual salivary glands

A

deliver serous secretion to papilla & assist in taste buds receiving stimuli

31
Q

glands of von Ebner

A

secrete into groove by circumvallate papillae; serous fluid with lipases

32
Q

muscular core of tongue

A

made of skeletal muscle & has salivary glands

33
Q

salivary glands

A

exocrine glands

34
Q

parotid gland

A

serous acini

35
Q

submandibular gland

A

both serous & mucous acini

36
Q

sublingual

A

mainly mucous

37
Q

functions of glands?

A

make & secrete lysozyme, amylase, lactoferrin, & secretory component for IgA

38
Q

whats the shape of salivary glands?

A

compound tubuloalveolar

39
Q

what surrounds glands?

A

dense irregular CT capsule

40
Q

salivary gland acini

A

connects to intercalated duct which leads to intralobular ducts; serous demilunes; in myoepithelial cells near basal lamina aid in saliva secretion

Histology (8 decks)

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