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What are the (6) basic parts of the respiratory system?

Nasal cavity

Pharynx

Larynx

Trachea

Bronci

Lungs

Lungs

What are the two parts of the respiratory system?

Transport air

Air exchange

What are the transport parts of the resp. System called?

Upper resp. System

What are the parts associated with air xchange collectively called?

\-lower resp system

What are the parts in the upper resp system?

Nasal cavity Through bronchi and large bronchioles

What are the parts of the lower respiratory system?

Small bronchioles and alveoli

Planum nasale

Philtrum

How is the nasal cavity separated?

Into right and left chambers and divided by the cartilaginous nasal septum

Median nasal septum

Nasal septum

Nasal septum

Turbinates

scrollsof bones on each side of the nasal cavity

Wrapped in mucous membranes to form dorsal and ventral conchae

Highly vascular

Median nasal septum

Dorsal concha

Ventral concha

Ventral nasal meatus

Dorsal nasal concha

Ventral Nasal concha

ventral, nasal meatus

Ethmoid conchae

dorsal nasal concha

Ventral nasal concha

Ventral Nasal Miatus

Dorsal nasal concha

Ventral nasal concha

Basal fold

Ventral nasal concha

Ventral meatus

Ventral opening to the ventral concha

What are the three parts of the pharynx?

Nasopharynx

Oropharynx

Laryngopharynx

Nasal cavity

Auditory tube opening

Nasopharynx

Guttural pouch

Larynx

Laryngopharynx

Oropharynx

Nasopharynx

Laryngopharynx

Oropharynx

Nasopharynx

Aboral region of the nasal cavity

Contains the openings to the auditory tubes.

Base is formed by the soft palate.

oropharynx

Aboral region of the oral cavity.

Dorsal wall is the soft palate.

Laryngopharynx

Where the nasal and oil cavities converge Just before the opening of the larynx and esophagus.

Which animal has the guttural pouch?

Horse

Guttural pouch

Outpocketing of the nasal pharynx and is connected to it by the auditory tubes

lateral compartment, guttural pouch

Stylohyoid bone

Medial compartment, guttural pouch

Median septum of the guttural pouch

Where does the internal carotid artery lies?

Next to the ventral wall of the guttural pouch.

Provides blood to the brain.

Auditory tube

Internal carotid artery

Medial compartment, guttural pouch

Lateral compartment guttural pouch

Paranasal sinuses

Outpocket of the nasal cavity

Air filled and lined with Mucoperiosteum

What are the four major functions of the paranasal sinuses?

Act as both thermal and mechanical protection.

Change the pitch and resonance of The Voice.

Increase the surface area for mucous membrane attachment.

Increase the surface area for olfaction.

E

Frontal sinus

Frontal sinus

Maxillary sinus

2

Frontal sinuses

1

Maxillary sinuses

Which species has a maxillary recess?

K9

1

Conchal Frontal

2

Caudal maxillary

3

rostral maxillary sinus

What are the sinuses in the small animals?

Frontal you

Maxillary.

Maxillary recess.

What are the equine sinuses?

Conchal frontal.

Dorsal conchal

Rostral and caudally maxillary.

Sphenopalatine.

What are the bovine sinuses?

Caudal frontal w Cornual diverticulum

Rostral frontal.

Dorsal conchal

Sphenoid.

Maxillary with lacrimal bulla

Palatine.

Larynx

The voice box.

Involved in phonation, localization and breathing

What are the three unpaired cartilages of the larynx?

Epiglottis

Thyroid cartilage.

Cricoid cartilage.

what are the four cartilaginous structures of the larynx?

Epiglottis.

Epiglottis.

Thyroid cartilage.

Cricoid cartilage.

Arytenoid cartilages.

Arytenoid

Cricoid

Thyroid

Hyoid apparatus

Epiglottis

Epiglottis

Cricoid

Arytenoid cartilage

What does the hyoid apparatus attached to?

thyroid cartilage

Thyroid cartilage

Unpaired.

Looks kind of like a taco open on top.

Glottic cleft

The "hole" which air passes through

vocal folds

Two soft tissue folds attach on the arytenoids cartilages and insert ventrally.

Which structures form the glottis?

The arytenoid cartilage and the vocal folds

the walls of the glottis cleft

Glottic Cleft

Vocal cord, fold

Lateral ventricle

Epiglottis

Arytenoid cartilage

Lateral ventricle

How to pocketing of mucous membrane, a cruise oral to the vocal folds in the dog and horse

Which species does not have a lateral ventricle?

Cow

What is the purpose of the opening and closing of the glottis?

Direct air to the trachea and food to the esophagus

Dorsal Cricoarytenoid m

\
Intrinsic muscle of the larynx

Sits dorsally

Connects the cricoid and arytenoid cartilages

The only intrinsic muscle of the larynx that opens the glottis

Dorsal Cricoarytenoid m

Cricothyroid muscle

Dorsal Cricoarytenoid m

What is the innervation of the dorsal Cricoarytenoid muscle?

Originates in the vagus nerve

The recurrent laryngeal nerve comes off the thoracic, inlet and innervates

Dorsal Cricoarytenoid m

Vocal cord