English for doctors. Nasopharynx and larynx (most important)

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English for doctors. Nasopharynx and larynx (most important)

Lecture notes, cheat sheets

Directory / Lecture notes, cheat sheets

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35. Nasopharynx and larynx

Nasopharynx is the first part of the pharynx.

It is lined by a pseudostratified, ciliated, columnar.

Epithelium with goblet cells: under the epithelium, a gland-containing connective tissue layer rests directly on the periosteum of the bone.

The cilia beat towards the oropharynx, which is composed of a stratified, squamous, nonkeratinized epithelium.

The pharyngeal tonsil, an aggregate of nodular and diffuse lymphatic tissue, is located on the posterior wall of the nasopharynx subjacent to the epithelium. Hypertrophy of this tissue as a result of chronic inflammation results in a condition known as adenoiditis. Larynx is a passageway that connects the pharynx to the trachea and contains the voicebox. Its walls are composed of cartilage held together by fibroelastic connective tissue.

The mucous layer of the larynx forms two pairs of elastic tissue folds that extend into the lumen. The upper pair are called the vestibular folds (or false vocal cords), and the lower pair con stitute the true vocal cords. The epithelium of the ventral side of the epiglottis and of the vocal cords is composed of stratified, squamous, nonkeratinized cells. The remainder of the larynx is lined with ciliated, pseudostratified, columnar epithelium. All cilia, from the larynx to the lungs, beat upward towards the nasopharynx.

new words

nasopharynx - nasopharynx

first - first

pseudostratified - pseudo-layered

ciliated - equipped with cilia

columnar - columnar

epithelium - epithelium

goblet cells

gland-containing - containing iron

connective tissue - connective tissue

layer - layer

directly - directly

periosteum - periosteum

bone - bone

cilia - eyelash

oropharynx - upper part of the throat

stratified - stratified

squamous - scaly

nonkeratinized - non-keratinized

somewhere - somewhere, somewhere, somewhere, somewhere

Author: Elena Belikova

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