Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Oral Cavity > Oral Cavity > Flashcards

Oral Cavity Flashcards

Learn anatomy of the mouth

1
Q

What is the vermillion zone?

A

Transition between skin of the face and mucosa of the oral cavity

It refers to the area where the skin of the face meets the inner lining of the mouth.

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

What is the mucocutaneous junction?

A

It is located at the vermilion border

This junction marks the transition between the skin and the mucous membrane.

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

What is the philtrum?

A

A vertical groove on the skin of the outer lip extending downwards from the nasal septum to the midline of the upper lip

The philtrum is a notable feature of the upper lip.

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

Where do the upper and lower lips meet?

A

At the labial (oral) commissures

These are the corners of the mouth where the lips come together.

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

What is the oral cavity?

A

The space located between lips and cheeks on
the external surface and the palatoglossal fold
on the internal

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

What is teh vestibule

A

the space between the soft tissue (lips and cheeks), and the teeth and gums

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

What is the vestibule?

A

A cavity, chamber that leads to or is an entrance to another cavity

The vestibule is located between the lips/cheeks and teeth.

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

Where is the oral cavity proper located?

A

Internal to the teeth

It refers to the space within the mouth that is bounded by the teeth.

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

Where are the upper (maxillary) teeth located?

A

Within the alveolar process of the maxilla (upper jaw)

The maxilla is the upper jawbone that holds the upper teeth.

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

Where are the lower (mandibular) teeth located?

A

Within the alveolar process of the mandible (lower jaw)

The mandible is the lower jawbone that holds the lower teeth.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is a parotid papilla?

A

A small elevation covering the opening of parotid (Stensen’s) duct

Located on the buccal mucosa at the level of the maxillary second molar

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

Where is the parotid papilla located?

A

On the buccal mucosa at the level of the maxillary second molar

It marks the opening of Stensen’s duct

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

Define mesial orientation

A

for the first incisor, it is the tooth surface directed towards the median plane. for other teeth, it is the surface directed toward the first incisor

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

Define buccal orientation

A

the tooth surface the lies towards the cheek

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

Define vestibular orientation

A

the surface of the tooth facing the vestibule or lips

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

Define labial orientation

A

The tooth surface that lies towards the lips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Define palatal orientation

A

the palatal surface of a tooth is directed towards the palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Define lingual orientation

A

It’s the part of the tooth surface that faces the tongue, and is nearest to the tongue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is tooth 12

A

Maxillary right

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What are the basic structural and functional units of life in all organisms?

A

Cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are the three major components of a cell?

A
  • Plasma membrane
  • Cytoplasm
  • Nucleus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

True or False: All living cells in multicellular organisms have a surrounding cell membrane.

24
Q

What is another name for the cell membrane?

A

Plasma membrane

25
What is the function of the cell membrane?
Provides a protective barrier around the cell and regulates material passage
26
Fill in the blank: The cell membrane separates the inner contents of a cell from its _______.
exterior environment
27
What role does the outer layer of skin play in relation to the body?
Separates the body from its environment
28
What is the primary structure of the cell membrane?
A bilayer of phospholipids ## Footnote The cell membrane is composed primarily of back-to-back phospholipids.
29
What role does cholesterol play in the cell membrane?
Contributes to signaling processes and shapes molecular membrane architecture ## Footnote Cholesterol is present in the cell membrane and plays a crucial role in its functionality.
30
What is a key feature of the lipids and proteins in the cell membrane?
They are not rigidly locked in place ## Footnote This fluidity allows for various functions and interactions within the membrane.
31
What components make up a single phospholipid molecule?
A phosphate group (head) and two fatty acid tails ## Footnote The structure of phospholipids is essential for membrane formation.
32
What is the charge of the phosphate group in a phospholipid?
Negatively charged ## Footnote This charge makes the head polar and hydrophilic.
33
Define hydrophilic in the context of phospholipid heads.
Water loving ## Footnote The phosphate heads are attracted to water molecules in the extracellular and intracellular environments.
34
What is the nature of the lipid tails in phospholipids?
Uncharged and hydrophobic ## Footnote The tails are water fearing and do not interact with water.
35
What term describes molecules that have both hydrophilic and hydrophobic regions?
Amphipathic (or amphiphilic) ## Footnote Phospholipids are amphipathic, which is crucial for their function in cell membranes.
36
How does soap relate to amphipathic properties?
It removes oil and grease stains ## Footnote Soap has both hydrophilic and hydrophobic portions, allowing it to trap grease in micelles.
37
Fill in the blank: The phosphate group of a phospholipid makes the head _______.
polar and hydrophilic
38
Fill in the blank: The tails of phospholipids are _______.
nonpolar and hydrophobic
39
What forms the basis of the cell membrane?
The lipid bilayer ## Footnote The lipid bilayer is a fundamental structure that provides the cell membrane with its basic framework.
40
What types of proteins are commonly associated with the cell membrane?
* Integral proteins * Peripheral proteins ## Footnote These proteins play various roles in cell membrane function.
41
What is an integral protein?
A protein that is embedded in the membrane ## Footnote Integral proteins are crucial for various cellular processes.
42
What is an example of an integral protein?
Channel protein ## Footnote Channel proteins selectively allow specific materials to pass through the cell membrane.
43
What do channel proteins allow to pass into or out of the cell?
Particular materials, such as certain ions ## Footnote Channel proteins are selective, meaning they only permit specific ions or molecules.
44
Fill in the blank: An integral protein is a protein that is ______ in the membrane.
[embedded]
45
True or False: Peripheral proteins are embedded in the lipid bilayer.
False ## Footnote Peripheral proteins are attached to the exterior or interior surfaces of the membrane, not embedded.
46
What is one of the main functions of the cell membrane?
To regulate the concentration of substances inside the cell ## Footnote Includes ions, nutrients, and waste products.
47
Name three types of ions regulated by the cell membrane.
* Ca++ * Na+ * K+ * Cl– ## Footnote Ions are essential for various cellular functions.
48
What are some examples of nutrients that the cell membrane regulates?
* Sugars * Fatty acids * Amino acids ## Footnote Nutrients are crucial for cell metabolism and energy.
49
What waste product must leave the cell?
Carbon dioxide ## Footnote Carbon dioxide is a byproduct of cellular respiration.
50
What is the structure of the cell membrane that provides the first level of control?
Lipid bilayer ## Footnote The lipid bilayer is composed of phospholipids.
51
What characteristic of the cell membrane makes it selectively permeable?
Tightly packed phospholipids and hydrophobic interior ## Footnote Selective permeability allows only certain substances to pass.
52
What types of materials can move through the lipid bilayer unaided?
Relatively small, non-polar materials ## Footnote Examples include lipids, oxygen, and carbon dioxide.
53
Which materials need assistance to cross the cell membrane?
Water-soluble materials ## Footnote These include glucose, amino acids, and electrolytes.
54
What are the two general methods substances use to move through the cell membrane?
* Passive transport * Active transport ## Footnote These methods differ based on energy requirements.
55
What is passive transport?
Movement of substances across the membrane without energy expenditure ## Footnote Passive transport occurs along concentration gradients.
56
What is active transport?
Movement of substances across the membrane using energy from ATP ## Footnote Active transport moves substances against their concentration gradient.

Oral Cavity (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions