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Year 1 MBChB Respiratory > Histology + Embryology > Flashcards

Histology + Embryology Flashcards

1
Q

Histology of the nasal cavity roof?

A

Olfactory epithelium

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2
Q

What is olfactory epithelium?

A

Respiratory epithelium - goblet cells + cilia

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3
Q

What is respiratory epithelium?

A

Pseudostratified squamous epithelium + goblet cells

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4
Q

Histology of the vestibules?

A

Keratinised stratified squamous epithelium

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5
Q

Histology of the oropharynx + larygopharynx?

A

Stratified squamous epithelium

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6
Q

Histology of the epiglottis?

A

Top half = stratified squamous epithelium + bottom half = respiratory epithelium + seromucous glands

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7
Q

Histology of the larynx?

A

Respiratory epithelium + cartilage

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8
Q

Cartilage of the larynx from top to bottom?

A

Epiglottis, thyroid, arytenoid, cricoid + corniculate

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9
Q

Histology of the vocal folds?

A

Stratified squamous epithelium

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10
Q

Histology of the trachea?

A

Respiratory lining + seromucous glands + cartilage + trachealis muscle

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11
Q

Histology of the primary bronchi?

A

Respiratory lining + seromucous glands + cartilage

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12
Q

Histology of the lobar bronchi?

A

Respiratory lining + seromucous glands + irregular cartilage plaques

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13
Q

Histology of the bronchioles?

A

Ciliated columnar or cuboidal epithelium + club cells

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14
Q

Function of club cells?

A

Secrete a component of surfactant

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15
Q

Histology of alveoli?

A

Simple squamous epithelium + type I/II + dust cells

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16
Q

What are dust cells?

A

Alveolar macrophages

17
Q

Histology of type I alveoli?

A

Thin cytoplasm to allow fast diffusion

18
Q

Histology of type II alveoli?

A

Cell covered in microvilli

19
Q

Level of oesopagus + trachea origin?

20
Q

Level of lung apices?

21
Q

Level of anterior 1st rib + jugular notch?

22
Q

Level of azygous arch?

23
Q

Level of aortic arch?

24
Q

Level of tracheal bifurcation?

25
Q

Level of oblique fissure anterior to posterior?

A

6th rib to T3

26
Q

Level of horizontal fissure anterior to posterior?

A

4th rib to 5th rib

27
Q

What week to lungs start to develop?

28
Q

Name 2 types of respiratory congenital defect + what they mean?

A

Oesophgeal atresia (upper + lower oesophagus are separate) and tracheoesophageal fistula (trachea and oeshopgus and connected)

29
Q

What germ layer forms the respiratory lining?

A

The endoderm

30
Q

What germ layer forms the respiratory muscle and cartilage?

A

The mesoderm

31
Q

Order of embryonic lung stages (elephants play chess in sunny africa)?

A

Embryonic, pseudoglandular, cannicular, saccular and alveolar

32
Q

Histology of the nasal cavity + nasopharynx?

A

Respiratory epithelium + seromucous glands

Year 1 MBChB Respiratory (3 decks)

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