On wings of thunder, honor bound, Search me out, I drum the sound. Twist and turn in the night, Dragon come, my guiding light. Protector, guardian, friend not foe, Come to me, see my sigil glow. Strong and true, this friendship charm, I beacon... Read more of Dragon's Charm at White Magic.caInformational Site Network Informational


Medical Articles

Mother's Remedies

Household Tips

Medicine History

Forgotten Remedies


Medical Articles


The patient is quite helpless, and there is usually a strong s...


See Paralysis. ...

Difficulties Of Direct Laryngoscopy

The larynx can be directly exposed in any patient whose mout...


These will be found treated under the various heads of Colds, ...

Wine And Water If No Reaction Can Be Obtained

Should the patient remain cold in his pack for longer than an...

Chronic Diarrhea

Take A D current, of very mild force. Place P. P. at the feet...

Position For Bronchoscopy And Esophagoscopy

The dorsally recumbent patient is so placed that the head an...


For healing wounds, burns, ulcers, irritation of mucous membr...

Foreign Bodies In The Stomach

Gastroscopy is indicated in cases of a foreign body that ref...

Teething Of Children

Affections arising from teething of children, are often of a ...

Removal Of Open Safety Pins From The Trachea And Bronchi

Removal of a closed safety pin presents no difficulty if it i...

From The Hygienic Dictionary

Diagnosis. [1] In the United States, making a diagnosis impli...

Pathologic Physiology

The development of permanent injury to one or more valves o...

Sleep And Rest

Why We Need Rest. A most important element in a life of healt...


The gastroscope is of the same construction as the esophagos...


This is severe pain in one part or other of the body, sometime...

Care Of Instruments

The endoscopist must either personally care for his instrume...

Neck Twisted

This arises from the undue contraction of some of the muscles ...

Acute Myocarditis

Probably most acute infections cause more or less myocarditis...


This is an affection of the bowels of the nature of diarrhoea,...

Site Of Lodgement

Source: A Manual Of Peroral Endoscopy And Laryngeal Surgery

Almost all foreign bodies are arrested in the
cervical esophagus at the level of the superior aperture of the
thorax. A physiologic narrowing is present at this level, produced in
part by muscular contraction, and mainly by the crowding of the
adjacent viscera into the fixed and narrow upper thoracic aperture. If
dislodged from this position the foreign body usually passes downward
to be arrested at the next narrowing or to pass into the stomach. The
esophagoscopist who encounters the difficulty of introduction at the
cricopharyngeal fold expects to find the foreign body above the fold.
Such, however, is almost never the case. The cricopharyngeus muscle
functionates in starting the foreign body downward as if it were food;
but the narrowing at the upper thoracic aperture arrests it because
the esophageal peristaltic musculature is feeble as compared to the
powerful inferior constrictor.

Next: Symptoms

Previous: Etiology

Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network

Viewed 843