The medium to fine-grained low-density turbidity flow deposits show normal grading and consist of Bouma units A, B, D and E. Deposition occurred by gravity flow, suspension settling and minor basal melt-out during ice retreat along the southern margin of the Kalahari Basin. Immediately basin...
Chapter23:TheRespiratorySystem I.TheRespiratorySystem:AnIntroduction,p.814 OrganizationoftheRespiratorySystem,p.814 Therespiratorysystemisdividedintotheupperrespiratorysystem,abovethelarynx,andthelower respiratorysystem,fromthelarynxdown. Therespiratorytractconsistsofaconductingportion(fromthenasalcavitytotheterminalbron...
The respiratory system tumors are composed of the upper respiratory tract tumors, such as nasopharyngeal carcinoma (NPC) and laryngeal cancer, and the lower respiratory tract tumors, which mainly refer to LC. Compared to the NPC and laryngeal cancer, LC is witnessed as the gender-free and world...
method (nasal aspirator and physiological saline solution) versus physiological saline solution in the prevention of recurrences of viral rhinitis and associated complications of the upper respiratory tract infections (URTI), with a special focus on acute rhinosinusitis and acute otitis of the middle ear...
In humans, the respiratory tract is divided into the upper airways (nasal cavity, pharynx, and larynx) and the lower airways (trachea, bronchi, bronchioles, and alveoli). The lungs consist of the bronchi, bronchioles, and alveoli. The primary function of the respiratory tract is to efficiently...
Increasing evidences have demonstrated human-to-human transmission that primarily affects the upper respiratory tract followed by lower respiratory tract damage leading to severe pneumonia. Based on the current status, the elderly population and people with prior co-morbidities are highly susceptible to ...
The most common bacterial agents belong to the normal flora of the mouth and upper respiratory tract, including Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus viridans, and Bacillus spp. Polymicrobial infection is common. Bacterial infection evokes a marked neutrophilic exudate, cellular nec...
bilabial:Intheproductionofthesesounds,theupperandthelowerlipsarebroughttogetherto createobstruction.TheEnglishbilabialsare[p][b][m][w]. labiodental:Intheproductionofthesesounds,thelowerlipisbroughtintocontactwiththe upperteeth,thuscreatingtheobstruction.ThelabiodentalsoundsinEnglishare[f]and[v]. dental:The...
(HEF) glycoprotein. This virus does not demonstrate marked seasonality and is not included in the annual influenza vaccine, although it has been responsible for occasional outbreaks, predominantly in children [21]. Illness in humans is generally mild and consists of an upper respiratory tract ...
[57]; however, for reasons of hygiene neither sputum induction nor diagnostic bronchoscopy should be solely performed for confirming COVID-19. In intubated patients with an initially negative PCR from the upper respiratory tract, further PCR testing in a lower respiratory tract specimen (e.g. ...