Respiratory System Lab Chapter 13 Bio 1108 Week 3

Respiratory Lab Anatomy & Physiology The List: Nostrils Nasal cavity Pharynx Epiglottis Hyoid bone Larnyx ‘voce box’ Thyroid cartilage ’Adam’s apple’ Trachea Tracheal cartilages Primary bronchi Lungs diaphragm Trachea slide: Tracheal lumen-air Hyaline cartilage Lung slide: Bronchioles Alveoli Simple squamous epithelium Blood vessel Respiratory zone versus conducting zone Mechanics of Inspiration versus expiration Tidal volume versus Vital Capacity Gas Exchange: Pulmonary versus systemic circuits External versus Internal respiration

Respiratory Pathway Inhaled air: Enters the nostrils Circulates in the nasal cavity Passes through the pharynx Enters and passes through the larynx to the Trachea Then the trachea bifurcates into Two primary bronchi attached to the Lungs The Bronchi continue to divide until They dead end at the alveolus. out in

Nasal cavity Pharynx Epiglottis Larynx Trachea Left Bronchus Lung Diaphragm

1 2 The List: Hyoid bone Larnyx ‘voce box’ Thyroid cartilage ’Adam’s apple’ Trachea Tracheal cartilages Primary bronchi Lungs diaphragm 3 5 4 6 7 8

The List: Hyoid bone Larnyx ‘voce box’ Thyroid cartilage ’Adam’s apple’ Trachea Tracheal cartilages 1 3 2 4 5

The List: Trachea Tracheal cartilages Primary bronchi Lungs 2 1 4 3

1 The List: Trachea Tracheal cartilages Primary bronchi Lungs diaphragm 2 3 4 5

The List: Primary bronchi Lungs 2 1

Diaphragm

Nasal cavity Epiglottis Pharynx Larynx Trachea

Nostrils Nasal cavity Pharynx Epiglottis Hyoid bone Larnyx ‘voce box’ Thyroid cartilage ’Adam’s apple’ 2 1 3 5 4 7

Hyoid bone Hyoid bone Epiglottis Thyroid cartilage Thyroid cartilage Tracheal cartilage Tracheal cartilage Posterior view Trachea Primary bronchus

Hyoid bone Thyroid cartilage “Adam’s apple” Tracheal cartilage

Epiglottis Hyoid bone Hyoid bone Thyroid cartilage Thyroid cartilage Tracheal cartilage Tracheal cartilage Anterior view Posterior view Trachea Primary bronchus

Bronchiole Alvelous

Simple squamous epithelium Alveolus Lumen of the Alveolus Blood vessel

Inspiration

Expiration

Spirographic Record and Vital Capacity Tidal volume is quiet breathing: You are doing it now! Vital Capacity is breathing during a sprint

Gas Exchange: Pulmonary versus systemic circuits

Gas Exchange at the Alveoli & Tissue

Respiratory Lab Anatomy & Physiology The List: Nostrils Nasal cavity Pharynx Epiglottis Hyoid bone Larnyx ‘voce box’ Thyroid cartilage ’Adam’s apple’ Trachea Tracheal cartilages Primary bronchi Lungs diaphragm Trachea slide: Tracheal lumen-air Hyaline cartilage Lung slide: Bronchioles Alveoli Simple squamous epithelium Blood vessel Respiratory zone versus conducting zone Mechanics of Inspiration versus expiration Tidal volume versus Vital Capacity Gas Exchange: Pulmonary versus systemic circuits External versus Internal respiration