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82 Cards in this Set
- Front
- Back
- 3rd side (hint)
Gross Anatomy |
Is the study of organs and structures of human body visible to naked eye. |
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How many lobes are the right lungs? |
Superior, middle, inferior |
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How many lobes in the left lung? |
Superior and inferior |
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Hilum |
Root of the lung |
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Pleurae |
Membranes that cover the surface of the lung and the cavity surrounding the lungs. |
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Visceral pleura |
Directly covers the lungs |
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Parietal pleura |
Covers the surfaces surrounding the lungs: rib cage, diaphragm, and mediastinum |
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Pleural space or cavity |
Space that is formed between the pleurae. Normally, scant amount of fluid. |
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Diseased state of lungs |
Cavity fill with air or fluids. |
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Function of pleurae |
Reduce friction and provide a negative pressure environment needed for lung inflation. Also help to pull the lungs open with the chest wall during inhalation |
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The respiratory system to perform 3 main functions: |
Air conduction Air filtration Exchange of gases (respiration) |
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Conducting portion |
Nostril- nasal cavities Pharynx- nasopharynx, oropharynx, laryngopharynx Larynx Trachea Paired main(primary) bronchi (plural form of bronchus) Bronchioles: secondary and tertiary |
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Filtration portion |
Nostrils: hairs, cilia, and mucus producing goblet cells Trachea and bronchi: cilia and mucus producing goblet cells |
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Respiratory portion |
Respiratory bronchioles Alveolar ducts Alveolar sacs Alveoli |
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How does conduct air to and from the lungs |
Air moves through the nasal cavity, pharynx, larynx, trachea, and bronchi to the lungs |
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Nasal cavities or fossae |
Composed of bone and cartilage, made up of several parts. Left and right fossae are separated by the nasal septum |
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Vestibule |
Most external portion Lined with stratified squamous epithelium which is a continuation of the skin from the face |
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Vestibule |
Most external portion Lined with stratified squamous epithelium which is a continuation of the skin from the face |
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Vibrissae |
Short thick hairs Act as a screening device for the respiratory tract |
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Danger of aspiration |
When food or liquid accidentally enters the trachea. |
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Glottis |
Opening into the larynx or voice box |
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Vocal folds |
At the edges of the glottis, embedded in mucous membranes |
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How does sound occurs? |
Flexible and pliable bands of connective tissue vibrate and produce sound when air is expelled past them through the glottis from the larynx. |
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Expectorated |
Spit up |
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Aspiration |
Refers to bits of food, liquid, or particles that travel into the trachea |
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Pneumonia |
Infection of the lungs, if there is a large amount of food or liquid that is aspirated and travel to the lungs. |
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Epiglottis |
The trachea is closed by a flap of tissue |
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Swallowing process |
Larynx rises, and the trachea is closed Epiglottis moves inferiorly cover the trachea to prevent food or liquid from entering the lungs Posterior and superior movement of the soft palate covers the entrance of the nasal passages. The upward movement of the soft palate prevents food or liquid from entering the nasal passages |
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Esophagus |
Which lies posterior to the larynx and trachea |
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Main bronchi |
Enter the right and left lungs |
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Bronchioles |
Branches into a great number of smaller passages |
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Bronchi |
represent the transition from the single conduction pathway of the upper airways into large surface area required for gas exchange |
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Respiratory epithelium |
Lined the entire bronchial tree. |
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Terminal bronchioles |
Smallest air conducting bronchioles |
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Respiratory bronchioles |
The transitional zone in the respiratory system concerned with both air conduction and gas exchange |
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Concentration gradient |
Moving from higher to lower concentration. Generally, oxygen moving into blood and carbon dioxide moving out of the blood |
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Histology |
Study of the cellular anatomy of a tissue or organ that can be viewed through a microscope |
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Cilia |
Small hair-like projections |
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Apical side |
Apex or top of the cells |
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Pseudostratified |
Appear to be in layers |
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Basement membrane |
Floor of epithelial tissue |
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Columnar |
Taller than they are wide |
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Goblet cells |
Mucus producing cells , present within the epithelium of the respiratory tract |
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Stratified squamous epithelium |
Found in multiple flattened layers |
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Simple squamous |
Single layer of flattened cells |
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Surfactant |
Lipoprotein covers luminal surface and keeps the alveoli from sticking together during exhalation |
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Premature babies |
Have respiratory problems after birth and need to remain hospitalized until their lungs fully develop |
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Type I alveolar cells |
95% of alveolar epithelium; form very thin, simple squamous epithelium of the alveoli in junction with capillaries |
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Type II alveolar cells |
5% of alveolar epithelium; produce and secrete pulmonary surfactant Can divide to replace damaged Type I cells |
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Alveolar macrophages |
Phagocytize toxic particles, allergens, or infectious material. Primary immune defense system of the alveoli. It migrates toward the ciliary surface of the bronchiolar system |
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Breathing |
Inspiration (breathing air in) Expiration (breathing air out) |
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External respiration |
Gas exchange with the environment at a respiratory surface |
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Internal respiration |
Gas exchange between blood and tissue fluid |
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Aerobic cellular respiration |
Production of ATP cells |
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For diffusion to be effective, the gas-exchange must be |
Moist Thin Large in relation to the size of the body |
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Ventilation |
Happens when the lungs move air into respiratory tract and out of the respiratory tract |
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What occurs during inhalation |
Rib cage lifts superiorly and anteriorly to open up and expand the lungs |
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What occurs when exhalation? |
Rib cage lowered, diaphragm rises the thoracic pressure increases and air move out of the lungs |
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Incomplete ventilation |
The air entering mixed with used air remaining in the lungs. Helps to converse water and maintain constant temperature. |
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Diffusion |
Accounts for exchange of gases between the air in alveoli and the blood in the pulmonary capillaries. |
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Diffusion |
Accounts for exchange of gases between the air in alveoli and the blood in the pulmonary capillaries. |
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Pulmonary capillaries are ? |
Oxygen-poor |
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Alveolar air is what? |
Oxygen rich |
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Boyle’s law |
Pressure of given quantity of gas is inversely proportional to its volume. Relationship between gas and pressure. |
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Charles’s law |
The volume of a given quantity of gas is directly proportional to its temperature. The higher the temperature then greater volume or the lower the temperature then lower gas volume |
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Charles’s law |
The volume of a given quantity of gas is directly proportional to its temperature. The higher the temperature then greater volume or the lower the temperature then lower gas volume |
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Dalton’s law |
Total pressure of a gas mixture is equal to the sum of the partial pressure of the individual gases. The concentrations and partial pressures of gases will affect the diffusion of those gases. |
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Spirometer |
Measurements of pulmonary ventilation |
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Spirometer |
Measurements of pulmonary ventilation |
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Tidal Volume (TV) |
Amount of air inhaled and exhaled in one cycle of quiet breathing. Typically about 500mL of air. |
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Inspiratory Reserve Volume(IRV) |
Maximum amount of air able to be inhaled beyond normal inhalation. Typically 3000ml of air |
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Expiratory Reserve Volume (ERV) |
Maximum amount of air able to be exhaled beyond normal exhalation, typically around 1200mL of air. |
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Residual Volume(RV) |
Amount of air remaining in lung that cannot be exhaled, typically 1300mL of air. |
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Vital Capacity (VC) |
ERV + TV + IRV |
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Total Lung Capacity (TLC) |
VC + RV |
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Inspiratory Capacity (IC) |
TV + IRV Or VC- ERV |
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Functional Residual Capacity (FRC) |
RV+ ERV |
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Respiratory rate (RR) |
Measured in breaths per minute |
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Emphysema |
Cause damage to the alveoli. The damage cause the inner walls to become weak and rupture. |
Smoking is often cause of this disease |
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Cystic fibrosis |
Hereditary disease. Cells produce mucus without enough saline. Causes mucous to become too thick so it clogs the respiratory tract. |
Can lead to respiratory failure |
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Pulmonary edema |
Accumulation of fluid in the lungs. |
Caused by infections, cancers, and congestive heart disease |
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Pleurisy |
Inflammation of the pleura( lining of the lungs). When the space is filled with air, pus, blood or their fluids. |
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