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Histology > Histology Of The Respiratory System > Flashcards

Histology Of The Respiratory System Flashcards

1
Q

Where can you find respiratory epithelium

A

It lines the tubular portion of the respiratory tract

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2
Q

What are characteristics of respiratory epithelium

A

Pseudostratified - all cells are in contract with the basement membrane

Ciliated epithelial cells

Interspersed goblet cells

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3
Q

What is the function of the nose

A

Filtration
Humidification
Warming
Olfaction

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4
Q

What tissue makes up the nose

A

Keratinising and non-keratinising squamous epithelium

Respiratory epithelium

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5
Q

What are the functions of the nasopharynx

A

Gas transport
Humidification
Warming
Olfaction

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6
Q

What tissue lines the nasopharynx

A

Respiratory epithelium

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7
Q

What lines the nasal sinuses

A

Respiratory epithelium

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8
Q

What are the functions of the nasal sinuses

A

Lower the weight of the skull
Add resonance to the voice
Humidify and warm air which is inspired

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9
Q

What makes up the larynx

A

Cartilaginous box

Respiratory epithelium

Loose fibrocollagenous stroma with seromucinous

Lymphatics and blood vessels

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10
Q

What is the function of the vocal cords

A

Voice production

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11
Q

What makes up the vocal cords

A

Stratified squamous epithelium overlying loose irregular fibrous tissue

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12
Q

What is the function of the trachea

A

Conducts air to and from the lungs

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13
Q

What makes up the trachea

A

Respiratory epithelium

Seromucinous glands in submucosa

Trachealis muscles posteriorly

C-shaped cartilagenous rings

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14
Q

Where are Clara cells most numerous

A

In terminal bronchioles

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15
Q

Where are respiratory bronchiole found

A

They are found in the first part of the distal respiratory tract

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16
Q

What is the purpose of respiratory bronchioles

A

They link terminal bronchioles with alveolar ducts

Gas exchange

Transportation

17
Q

What tissue makes up respiratory bronchioles

A

Cuboidal ciliated epithelium

Spirally arranged smooth muscle

No cartilage

18
Q

What are the different type of alveoli

A

Can be Type 1 pneumocytes or type 2 pneumocytes or alveolar macrophages

19
Q

What are characteristics of type 1 pneumocytes

A

Flattened cells
Flattened nucleus
Few organelles

20
Q

What are characteristics of type 2 pneumocytes

A

Rounded cell
Rounded nucleus
Rich in mitochondria, smooth ER and spherical bodies

21
Q

What do type 2 pneumocytes do

A

They produce surfactant

22
Q

What is the function of alveolar macrophages

A

Phagocytose particulates including dust and bacteria

23
Q

What makes up the blood air barrier

A

A fused basement membrane of a type 1 pneumocyte with a capillary

24
Q

What is the visceral pleura made up of

A

Flat mesothelial cells
Loose fibrocollagenous connective tissue
Irregular external elastic layer
Interstitial fibrocollagenous layer
Irregular internal elastic layer

25
Q

What does alveolar interstitium contain

A

Blood vessels
Lymphatics
Collagen
Elastin
Some macrophages

26
Q

What is this showing

A

Respiratory epithelium

27
Q

What is this showing

A

Epithelium in the nose

28
Q

What is this showing

A

Epithelium in the larynx

29
Q

What is this showing

A

Epithelium that lines the vocal cords

30
Q

What is this showing

A

Trachea

31
Q

What is this showing

A

Respiratory bronchioles

32
Q

What is this showing

A

Visceral pleura

33
Q

What does the main bronchi, lobar bronchi and segmental bronchi contain in there tissue

A

Smooth muscle
Partial cartilaginous rings
Respiratory epithelium
Some basal neuroendocrine cells
Seromucinous glands and goblet called

34
Q

What doe bronchioles contain in there tissue

A

Smooth muscle
Ciliated columnar epithelium
Few goblet cells
Clara cells

Histology (18 decks)

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