Airborne transmission occurs when infectious particles are
transmitted through the air. Preventive measures are essential.
to reduce its spread. The use of masks protects and reduces
the spread of respiratory infections.
The allergic fungal sinusitis has an altered function in sinus
ventilation. Moreover, under normal conditions, these cavities
are air-filled. Additionally, mucus flows properly into the
nasal cavity.
Alteration of aqueous humor drainage in an eye with glaucoma. It
shows how a blockage in the trabecular meshwork or in Schlemm’s
canal prevents proper fluid flow, causing an increase in intraocular
pressure.
Altered bronchial mucosa. It represents the increase in secretion
of mucus by goblet cells and bronchial inflammation, causing
airflow obstruction, persistent cough, and respiratory difficulty,
typical in bronchitis.
Altered mucous cells. They represent the hyperactivity of the
goblet cells with excessive production of thick mucus, which
which causes obstruction of the airways, persistent cough
and respiratory difficulty in bronchitis.
Alveolar mucus. It represents the excessive and thick accumulation
of mucus in the respiratory epithelium, caused by inflammation, which
hinders airflow and causes persistent cough and respiratory problems.
Infectious alveolar pneumonia is an inflammation of the alveoli.
caused by microorganisms. It causes fluid accumulation, hindering
gas exchange and generating respiratory symptoms.
The alveolar structure consists of small air sacs called alveoli located in the lungs. These microscopic structures allow oxygen to enter the bloodstream and carbon dioxide to leave the body.
Alveoliand bronchiolesare lung structures where gas exchangeoccurs. They allow oxygen to enter the blood and carbon dioxide to leave the body during breathing.
The neuronal degeneration in Alzheimer’s disease has an altered
function in the nervous system. Moreover, under normal conditions,
neurons communicate efficiently. Additionally, they support memory
consolidation.
Amyotrophiclateralsclerosisisa progressivedegenerationof motorneurons. These neuronsare locatedinthe motor cortex andthe spinalcord. In addition, its deteriorationinterruptsthe signal transmission.
Anal canal anatomy. It is the final part of the large intestine
and the gastrointestinal tract. Its structure includes the internal
and external sphincters to control defecation. It has anal glands
for lubrication and anal columns. It is a key functional unit in
the elimination of waste.