Anatomy Lab: The Ventilatory System

36 terms by kristiholt30 

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External Nares

Nostrils

Nasal Septum

Separates Nostrils

Nasal Cavity

Lined with mucous membrane, moistens air entering the respiratory system. Traps dust particles

Pharynx

3 Regions: Nasopharynx, Oropharynx, Laryngopharynx

Nasopharynx

Posterior to nasal cavity

Oropharynx

Behind oral cavity

Laryngopharynx

Superior to larynx most inferior

Larynx

Voice Box, pitch

Thyroid Cartilage

Made of Hyaline cartilage, Shield Shaped, most prominent.

Cricoid Cartilage

Inferior to Thyroid Cartilage, also made of hyaline cartilage

Arytenoid Cartilage

Superior to Cricoid Cartilage, Posterior wall of larynx

Vocal Folds

Cartilages attach here

Epiglottis

Most superior part of larynx, elastic cartilage

Glottis

Covers larynx during swallowing

Trachea

Wind pipe

Tracheal Cartilages

Keeps trachea open (c shaped)

Primary Bronchi

Enter lungs, division of trachea

Secondary/lobar bronchi

Division of primary bronchi

Lungs

Two in humans

Right lung

Has 3 lobes (Superior, Middle, Inferior)

Left Lung

Has 2 Lobes (Superior and Inferior)

Cardiac Notch

Where the Heart sits in the left lung

Pleural Cavities

Where the lungs sit

Parietal Pleura

Outer membrane on chest cavity

Visceral Pleura

Membrane on lungs

Bronchioles

Division of bronchi, small tubules, smooth muscle with blood capillaries

Alveoli

Air sacs in lungs, exchange O2 and CO2 with blood capillaries.

Respiratory Membrane

Oxygen moves across this membrane. Has Aleveolus and Capillary epithelium and the basement membrane between the two

Pulmonary Ventilation

Mechanical process of moving air in and out of the lungs.

Tidal Volume

Amount of air release during a normal exhale

Expiratory Reserve Volume

Max amount of air that you exhale after normal exhale

Vital Capacity

Total Volume of air that can be forcefully expelled after maximum

Inspiratory Reserve Volume

VC- (ERV+TV)

Residual Volume

Air left in the lungs after maximum exhalation

Minute Volume

Total amount of air inspired and expired in 1 min, normal breathing

Cardiopulmonary Resuscitation

Used on people suffering heart attack, drug OD etc. 100 times per minute chest compressions. 30 chest compressions: 2 ventilations

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