respiratory system just breathe!. the nose (canine) 1.nasal plate 2. nasal philtrum

Respiratory System

Just Breathe!

The Nose (canine)

1. Nasal Plate

2. Nasal Philtrum

The canine head showing respiratory apparatus1. Nostril; 2, 3, 4 Nasal concha; 5, Frontal sinus; 6. Hard palate; 8. Tongue; 8’ Oropharynx (the space); 9. Soft palate; 10’ Nasopharynx (the space); 10 Epiglottis; 12 trachea; 13 Esophagus

Paranasal Sinuses

Canine Porcine

Laryngeal Cartilages in the Horse1. Epiglottic; 2. thyroid; 3. cricoid; 4 arytenoid; 5 trachea; 6.

cricoarytenoid joint; 7. crocothyroid joint

2. (You do not have to be able to name these all.

Complex muscles control laryngeal movement

Median section of Equine larynx1. Epiglottis; 2. corniculate process of arytenoid cat.; 3 Vestibular fold; 4 Vocal fold (cord); 5. Laryngeal ventricle; 6. Lamina of cricoid cart; 7. Cricothyroid ligament

Photograph of the same section

Transverse section of larynx2. Glottis; 3. Vocal ligament in vocal fold; 8,9,10 laryngeal cartilaages; 4, 5, 6 laryngeal musclesExamples: Roaring horses, laryngeal hemiplegia

Transverse section of A canine and B bovine tracheas

1. Mucous membrane; 2 tracheal cartilage; 4. Tracheal muscle (external in dogs, internal in cattle.

Schematic of the Pleural Cavity

1. Costal pleura; 2. Mediastinal pleura; 3. Diaphragmatic pleura; 4. Visceral Pleura; 5. Diaphragm 6. Pericardium

Transverse Section of the canine thoraxNote the heart suspended within the pleura and the pericardium. 1,2 pleura; 4. pericardium; 6 aorta; 7 esophagus; 8 tracheal bifurcation; 10 heart

The Canine Thorax (for orientation)

Lungs

A, B Pig C, D Dog

Pig Lungs

1. Trachea; 2 pulmonary trunk; 3. Pulmonary veins; 4 Bronchus

Equine Lungs and Heart

Structures to Note

• Trachea• Bronchi• Bronchioles• Texture of alveoli