Palatine tonsils: lymphoid organs in the oropharynx that
are part of the immune system, filtering bacteria and viruses
and helping protect the body from infections.
Paranasal sinuses in the coronal plane: shows the frontal sinus
in the forehead, its connection to the nasal cavity, and its roles
in voice resonance, skull protection, and air conditioning.
Pharynx anatomy: a muscular tube in the neck connecting
the nasal and oral cavities with the larynx and esophagus,
enabling breathing, swallowing, and contributing to
phonation.
Pharynx and larynx anatomy: structures connecting the oral
and nasal cavities with the esophagus and larynx, enabling
breathing, swallowing, and voice production.
The physiology of the heart explains how blood circulates
through the body. Deoxygenated blood travels to the lungs
for oxygenation, then oxygenated blood returns to the heart
and is pumped through the aorta to supply tissues.
Pulmonary anatomy illustrates the structure and position of the lungs within the thoracic cavity. It includes bronchi, bronchioles, and alveoli, which enable oxygen and carbon dioxide exchange.
Pulmonary bronchial branching shows how the trachea divides into primary bronchi, which then branch into secondary bronchi and bronchioles to distribute air throughout the lungs.
Pulmonary emphysema is a chronic disease that destroys
the alveoli and reduces lung elasticity. This makes it difficult
to breathe, decreases gas exchange, and causes dyspnea
and progressive fatigue.
Pulmonary respiration is the process by which the body takes oxygen from the air and removes carbon dioxide. This exchange of gases occurs in the lungs and supports normal cellular function.
Pulmonary respirationis the process by which air passes through the pharynx, trachea, bronchi, and bronchiolesto reach the lungs, where gas exchange occurs.
Pulmonary tuberculosis is a bacterial infection that damages
the lungs. It causes lesions, hinders gas exchange, and generates
symptoms such as persistent cough, fever, and fatigue.
Early detection and adherence to treatment are essential to avoid
complications.