Respiratory pt 1

A collection of vocabulary flashcards based on the respiratory system and its anatomy.

Erythrocytes

Red blood cells that carry oxygen in the blood.

Heme group

A component in hemoglobin that contains iron and binds oxygen.

Pulmonary ventilation

The process of inspiration (inhaling) and exhalation (exhaling).

External respiration

The exchange of gases between the lungs and the blood.

Internal respiration

The exchange of gases between blood and the tissues.

Regulation of blood pH

The function of the respiratory system that modifies carbon dioxide levels.

Carbonic anhydrase

An enzyme that catalyzes the conversion of carbon dioxide and water to bicarbonate ions.

Olfaction

The sense of smell, which is processed by the olfactory nerve.

Nasal concha

Projections from the nasal septum that increase surface area for filtering and humidifying air.

Vestibule

A small space just inside the nostrils that leads to a larger nasal cavity.

Eustachian tube

A tube that connects the nasopharynx to the middle ear, helping to equalize pressure.

Thyroid cartilage

A large cartilage in the larynx, commonly referred to as the Adam's apple.

Cricoid cartilage

The ring-shaped cartilage of the larynx that sits below the thyroid cartilage.

Epiglottis

A flap of elastic cartilage that prevents food from entering the trachea during swallowing.

Vocal folds

Also known as true vocal cords, these structures vibrate to produce sound.

Glottis

The opening between the vocal folds responsible for sound production.

Bronchopulmonary segment

The portion of a lung supplied by a tertiary bronchus.