1180528396

    Master this deck with 34 terms through effective study methods.

    Imported from Quizlet

    Created by @amari

    thoracic cavity

    cavity housing lungs and heart

    Epiglottis

    A flap of tissue that seals off the windpipe and prevents food from entering.

    bronchi

    the two passageways that branch off the trachea and lead to the right and left lungs

    Diaphragm

    sheet of muscle that separates the chest cavity from the abdomen

    Cilia

    microscopic hair like projections that line the respiratory tract

    alveoli

    microscopic air sacs in the lungs

    pharynx

    throat; passageway for food to the esophagus and air to the larynx

    bronchioles

    small branches that lead to alveoli

    trachea

    The windpipe; a passage through which air moves in the respiratory system.

    larynx

    voice box; passageway for air moving from pharynx to trachea; contains vocal cords

    septum

    wall dividing each nasal passage

    blood

    substance that transports respiratory gasses

    asthma

    chronic lung disorder that causes the constriction of the airways

    bronchitis

    inflammation of the bronchi

    pneumonia

    a lung infection usually caused by a bacteria or virus

    tidal volume

    Amount of air that moves in and out of the lungs during a normal breath

    expiration

    breathing out (exhalation)

    external respiration

    exchange of gases between lungs (alveoli) and blood

    internal respiration

    Exchange of gases between cells of the body and the blood

    pulmonary ventilation

    movement of air into and out of the lungs

    vital capacity

    total amount of exchangeable air (TV+IRV+ERV)

    inspiration

    breathing in

    respiration

    the entire process of gas exchange between the atmosphere and cells

    spirometer

    an instrument used to measure respiratory volumes

    residual volume

    Amount of air remaining in the lungs after a forced exhalation

    examples of nonrespiratory air movements

    cough, sneeze, crying, laughing, hiccups, and yawns

    these factors affect your respiratory capacity

    size, age, gender, physical condition

    the most important factor that influences respiration

    amount of carbon dioxide in the blood

    COPD (chronic obstructive pulmonary disease)

    A group of lung diseases that block airflow and make it difficult to breathe.

    emphysema

    a condition in which the air sacs of the lungs are damaged, enlarged and lose eleasticity, causing breathlessness.

    cystic fibrosis

    inherited disease that causes body to produce abnormally thick and sticky mucus, leads to frequent lung infections

    tuberculosis

    Infectious lung disease caused by bacteria, may lead to coughing up blood, one of the leading causes of death in the early 1900s

    lung cancer

    pulmonary malignancy commonly attributed to cigarette smoking

    Surfactant

    chemical produced in the lungs to maintain the surface tension of the alveoli and keep them from collapsing