Respiratory System Lab Practical

Major role of the respiratory system

exchange of respiratory gases with blood

Nasal Cavity

Hard Palate

Soft Palate

External Nares

Function of External Nares

Provides passage to air breathed and to secretions from the nose and eyes

The three parts of the pharynx

nasopharynx, oropharynx, laryngopharynx

Name General Function of Pharynx

Serves as a common passageway for food and air

nasopharynx

Nasopharynx Function

serves only as an air passageway

oropharynx

Oropharynx Function

passageway for food and air

laryngopharynx

Laryngopharynx Function

passageway for food and air

larynx

Larynx Function

produces vocalizations, provides an open airway; acts as switching mechanism to route air and food into proper channels

epiglottis

epiglottis

epiglottis

epiglottis

Name The Cartilage Type in the Epiglottis

The only elastic cartilage of the larynx

Epiglottis Function

seals the laryngeal inlet to prevent food from entering the lower respiratory tubes

thyroid cartilage

thyroid cartilage

thyroid cartilage

thyroid cartilage

thyroid cartilage

corniculate cartilage

corniculate cartilage

cricoid cartilage

cricoid cartilage

cricoid cartilage

cricoid cartilage

cricoid cartilage

cricoid cartilage

arytenoid cartilage

arytenoid cartilage

arytenoid cartilage

arytenoid cartilage

arytenoid cartilage

vestibular folds

vestibular folds

These are also called the false vocal cords.

true vocal fold

vocal ligament

These are also called the true vocal folds.

trachea

trachea

cartilaginous rings of trachea

cartilaginous rings of trachea

Function of Trachea

flexible enough to permit bending and elongation but also the cartilage rings prevent it from collapsing and keep the airway open despite pressure changes during breathing

primary broncus

secondary bronchus

right primary bronchi

left primary bronchi

right secondary bronchus

left secondary bronchus

left bronchioles

How many lobes does the RIGHT lung have

3

superior lobe of right lung

middle lobe of right lung

inferior lobe of right lung

How many lobes does the LEFT lung have

2

superior lobe of left lung

inferior lobe of left lung

cardiac notch of left lung

Three cartilages of the larynx

cricoid, thyroid, epiglottis

True

True or False: The right primary bronchus is wider and shorter than the left primary bronchus

Secondary bronchi

The primary bronchi divide into these.... also known as lobar bronchi

Pleural membranes

Parietal Pleura & Visceral Pleura

Pleural Cavity

contains serous fluid