Where it is
The front part of the head, from the stop to the nose leather.
- Layer
- Exterior and regions
- System
- Body regions
- Region
- Head
What it is and what it does
The muzzle is the portion of the head in front of the eyes: the nose, the upper jaw and the mandible with the lips. Its length relative to the skull is one of the criteria breed standards use to describe the head. Inside the muzzle is the nasal cavity with the nasal turbinates, covered by the mucosa through which the dog perceives scents.
Each nasal cavity contains three turbinates (nasoturbinate, maxilloturbinate, ethmoturbinate); the olfactory receptors are found mainly on the ethmoturbinates, in the back part of the cavity.
Worth remembering
Inside the muzzle is the nasal cavity, lined with the mucosa through which the dog smells.
Names
- Also called: nasal region, foreface.
- Latin term: rostrum.
- In Romanian: Botul (Romanian page).
In the atlas lessons
Teeth: 28 deciduous, 42 permanent (4 min):
Deciduous teeth begin to erupt at 3-5 weeks; the permanent ones at around 4-5 months, and they are usually all present by 7 months. The ages vary, especially in very small breeds.
Journey of a scent (5 min):
In the vestibule the flow splits: ~12-13 % climbs to the olfactory recess, the rest goes to the pharynx and the lungs.
Questions from the atlas
"Find it on the drawing" questions whose answer is this structure; in the atlas you will find them in the question bank and in the lessons.
- Show the muzzle on the drawing. (level 1)