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62 Cards in this Set

  • Front
  • Back

pollutants

substances that makes an environment not clear and impure

6 connected elements of respiratory tract

Nose, pharynx, larynx, trachea, bronchi & bronchioles, and alveoli

Respiration

transport of O2 from outside air to tissue cells and transport of CO2 in opposite direction

Four components of Respiration

1. Ventilation


2. Pulmonary exchange of gases


3. Gas transport


4. Peripheral gas exchange

ventilation

movement of air and its gases into and out of lungs

pulmonary exchange of gases

between air in alveoli and pulmonary capilaries

gas transport

from pulmonary capillaries through arterial system to peripheral capillaries in tissues and the transport of gases back to the lung capillaries through venous system

peripheral gas exchange

between tissue capillaries and tissue cells for use in cellular metabolism

5 functions of Respiratory System

1. Exchange of gases


2. Regulation of blood pH


3. Protection


4. Voice production


5. Olfaction

spirometer

instrument used to measure respiratory volumes

Functions of nose

1. passageway for air


2. air cleanser


3. air moisturizer


4. air warmer


5. sense of smell

common cold

viral upper respiratory infection

rhinitis

inflammation of nasal mucosa, also called coryza

Allergic rhinits

swelling of mucous membranes of the nose, pharynx, and sinuses with clear watery discharge

sinusitis

infection of paranasal sinuses, often following a cold

Epistaxis

nosebleed

Cautery

agent or device used to burn or scar a tissue

concha

shell-shaped bone on lateral wall of ansal cavity

decongestant

agent that reduces the swelling and fluid in the nose and sinuses

meatus

passage or channel; also used to denote the external opening of a passage

mucopurulent

mixture of pus and mucus

naris

nostril

sinus

cavity or hollow space in a bone or other tissue

pharynx

muscular funnel that receives air from nasal cavity and food and drink from oral cavity

division of pharynx

1. nasopharynx


2. oropharynx


3. laryngopharyx

nasopharynx

located back of nose, above soft palate and uvula. lined with a mucous membrane that includes goblet cells: produce mucus

oropharynx

located below soft palate and above epiglottis. contains two sets of tonsils

laryngopharynx

located below tip of epiglottis, pathway to esophagus. only food and drink passes through

snoring

disorder of pharynx

obstructive sleep apnea

obstruction by soft tissues at back of the nose and mouth causes frequent episodes of gasping for breath followed by complete cessation of breathing

pharyngitis

acute or chronic infection involving pharynx, tonsils and uvula

tonsillitis

infection of tonsils by a virus

nasopharyngeal carcinoma

rare form of cancer that occurs mostly in males

hypoxia

below normal levels of oxygen in body as a whole or a region of the body

functions of larynx

1. thyroid and cricoid cartilages maintain an open passage for movement of air to and from trachea


2. epiglottis and vestibular folds prevent food and drink from entering the larynx


3. vocal cords are source of sound production

Laryngitis

inflammation of mucosal lining of larynx, producing hoarseness and sometimes progressing to loss of voice

epilottitis

inflammation of epiglottis

croup

group of viral diseases in children aged 3 months - 5 years. Inflammation and obstruction of upper airway

papillomas

benign tumors of larynx result from overuse

caricinoma

production of a persistent hoarseness

Right lung has three lobes (superior, middle, and inferior)

Left lung has two lobes (superior and inferior)

fissure

deep furrow or cleft

hilum

site where nerves and blood vessels enter and leave an organ

mediastinum

area between lungs containing the heart, aorta, venae cavae, esophagus and trachea

visceral pleura

serous membrane covering each lung

pleural cavity

space between visceral and parietal pleurae

functions of pleurae

1. reduce friction


2. assist in inspiration


3. separation

inflation

process of expanding with air

parietal

pertaining to outer layer of pericardium and other body cavities

pericardium

tissue covering the heart

pleura

membrane covering the lungs and lining the ribs in the thoracic cavity




surfactant

a protein and fat compound that creates surface tension to hold lung alveolar walls apart

symptoms and signs of respiratory disorders

1. coughing


2. dyspnea


3. cyanosis


4. changes in rate of breathing


5. sneezing

acute bronchitis

viral or bacterial, production of excess mucus with some obstruction of airflow

chronic bronchitis

due to cigarette smoking or repeated episodes of acute bronchitis

bronchiolitis

inflammation of small airway bronchioles

pulmonary emphysema

disease of bronchioles and alveoli. Airways become enlarged and septa between the alveoli are destroyed, forming large sacs.

chronic airway obstruction

progressive disease, involves both chronic bronchitis and emphysema

bronchiectasis

abnormal dilation of small bronchioles due to repeated infections

bronchial asthma

disorder with recurrent acute episodes of bronchial obstruction as a result of constriction of bronchioles

cystic fibrosis

increased viscosity of secretions from pancreas, salivary glands, liver, intestine, and lungs

pulmonary edema

collection of fluid in the lung tissue and alveoli