Respiratory System Laboratory

S.K. Kim

124F

Middle nasal choncha

Inferior nasal choncha

124 124P

Nasal septum

Nasal cavity

Nasal vestibule

#124, #124P, #124F

124F: nasal vestibule

#124: Nasal mucosa (Ep + Lamina propria)

Nasal mucosa

respiratory epithelium sero-mucous glands dilated venules and veins

# 124

#124 Olfactory Mucosa ? (monkey)

Nasal septum

Nasal mucosa

Throughout the nasal cavity. Respiratory epithelium with goblet cells. Sero-mucous glands in the lamina propria. Dilated venules and veins.

Olfactory mucosa

Limited to a small area on the roof. Taller epithelium with no goblet cells. (Only) serous glands (Bowman’s) in the lamina propria. Dilated venules and veins.

Olfactory nerve

Bowman’s gland

115 (H&E)Sagital section of the

palate

palatal and maxillary bone formation

Nasal cavity

Oral cavityUpper lip

Gingiva (gum)

Developing tooth

Rotate 180o

Nasal cavity, Pharynx and Larynx

Oropharynx

Laryngopharynx

Trachea

Esophagus

Larynx

Nasal cavity (septum)

Nasopharynx

chonchae

Epiglottis

Posterior view

#125-2 Larynx

Thyroid cartilage

Laryngeal ventricle

Clemente pl. 562

Gray’s p.956

Vestibular fold (false vocal fold)

(true) Vocal fold

#125-2 Larynx

#125-2 Larynx

Respiratory epithelium

Stratified squamous epithelium, non-keratining

#40; Trachea

Respiratory epithelium

Basement membrane

Elastic fibers

#126 Trachea Esophagus

esophagus

trachea

Trachealis muscle

#127 Trachealis Muscle (smooth)

#130-1 Lung

2?

1?

Bronchus

Pulmonary artery

Bronchi

#130-1 Lung

Pulmonary artery

Close to bronchial trees relatively thin wall (media) elastic laminae relatively wide lumen

#130-1 Lung

Broncial cartilage

4?

3?

Bronchial vein

Bronchial artery

Only in the wall of large bronchi. Ordinary arteries with relatively thick media.

#130-1 Lung

Ciliated and non-ciliated (Clara) cells No goblet cells Prominent sm. M.

Ciliated cells

non-ciliated cells

Smooth muscle

Bronchiole

#132-2 (Terminal) Bronchiole & Pulmonary artery

Bronchiole

P. A.

Smooth Muscle

#132 Lung

6?

5?

7?

Terminal bronchiole

Respiratory bronchiole

P.A.

Low cells alveolar pocketingKnobs of sm. muscle (arrows)

#129 Lung

8?Alveolar duct

9? alveoli

Alveolar sac

#130-1

Lung

Type I Pneumocyte

Type II Pneumocyte (surfactant)

Macrophage

10?

11?

12?

#130-1 Lung

Pulmonary vein

Away from bronchial trees thin wall

13?

#130-2 Lung Pulmonary vein

#129 Lung

?

?

?