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Recognizing the Alcoholic or Substance-Abusing Patient in Your Practice
Published in Frank Lynn Iber, Alcohol and Drug Abuse as Encountered in Office Practice, 2020
Drugs may be ingested or smoked with almost no tell-tale signs. Nasal insufflation (snorting) of drugs usually produces nasal congestion and erythema. There may be frequent blowing of the nose, with loss of nasal hair. Sinusitis may be present. Smoking of drugs, though usually no more than a few times daily, produces the same changes in the lungs as are produced by smoking cigarettes. Many abusers also use cigarettes. Intravenous drug use produces many physical findings (Table 15). The veins may be scarred, thrombosed, or pigmented from chronic injections.
Bacterial Pneumonia of Infants and Children
Published in Lourdes R. Laraya-Cuasay, Walter T. Hughes, Interstitial Lung Diseases in Children, 2019
The first line of respiratory tract defense against infection is the anatomic configuration of the upper respiratory tract. Multiple bifurcations and nasal hair result in removal of large suspended particles from the air. Coughing and sneezing reflexes as well as the mucociliary transport system are helpful in clearing particles from the terminal bronchioles to the larynx.19
Comparative Anatomy and Physiology of the Nasal Cavity
Published in D. V. M. Gerd Reznik, Sherman F. Stinson, Nasal Tumors in Animals and Man, 2017
Donald F. Proctor, Jane C. F. Chang
The nostrils are lined with skin and the nasal hairs project from it into the airway. Through the nasal valve there is squamous epithelium undergoing a gradual transition just beyond the anterior ends of the turbinates to ciliated secretory respiratory epithelium.17 Goblet cells are interspersed with ciliated cells throughout the main passage.18 The submucosa in the main passage contains a rich vasculature and a myriad of submucous seromucinous glands. Through the main passage, the surface is covered with airway secretions reaching at least some 10 to 12 jim above the cell surfaces. In the nasopharynx there is a transition again to squamous epithelium, although ciliated cells are found especially over the adenoids which project from the posterior nasopharyngeal wall.
Intranasal drug delivery devices and interventions associated with post-operative endoscopic sinus surgery
Published in Pharmaceutical Development and Technology, 2018
Lari K. Dkhar, Jim Bartley, David White, Ali Seyfoddin
The vestibular area, the front part of the nasal cavity within the nostrils, is approximately 0.6 cm2. The nasal hairs, also called vibrissae, filter the inhaled particles which serve as a barrier system where its surface is covered by stratified squamous keratinized epithelial cells (Illum 2003; Gallo et al. 2016). The atrium is a segment between the nasal vestibule and the respiratory region. The anterior segment of the atrium consists of stratified squamous epithelium and the posterior segment consists of a pseudostratified columnar cells adorned with microvilli (Jadhav et al. 2014).
The barber shop
Published in Baylor University Medical Center Proceedings, 2020
The haircut was $25, not including the tip. The equipment seemed newer than what I was used to. She even had a hand-held massager to vibrate over my neck and shoulders. She did trim the ear hair but not the nasal hair. Unlike George, she didn’t tell me I looked good upon finishing, even if he had cut it too short on one side, making it difficult to do my comb-over.