With the help of other cartilages, it forms the cartilaginous portion of the meatus. In addition, the annular cartilage is a small incomplete ring that attaches to the bony external acoustic meatus. Again, the scutiform cartilage is a small quadrilateral shape that attaches to the cranial aspect of the base of the auricular cartilage. The auricular cartilage is large and forms the shape of the dog ear. In dog ear cartilage anatomy, you will find three types of cartilages – auricular, annular, and scutiform. The base of the dog pinna is broad and attaches to the external auditory process of the petrous temporal bone. You may find the blunt or pointed apex (vary with the dog breed) in the dog auricle or pinna. The upper and lower borders of the dog pinna are thick. On the other hand, the posterior surface of the dog pinna is convex that covers hairy skin. The cranial surface of the pinna of a dog is concave, ridged, and possesses the opening of the external ear. But the shape of the auricle or pinna of the dog varies with the breed. It is roughly an elongated funnel-shaped structure with two surfaces, two borders, a base, and an apex. The auricle or pinna is the externally visible part of the external ear of a dog. So, you may jump to the dog ear cartilage anatomy to know details about them. If you want to know the detailed anatomy of these structures from the dog ear, you may continue this article till the end.Īll these structures are from the auricular cartilage of the dog ear. The antitragohelicine incisures structure andĪll the structures as mentioned above from the dog’s external ear are shown in the labeled diagram.The different process of the antitragus (styloid, lateral, and medial).The lateral and medial crus of the helix.The cranial and caudal border of the helix.Three types of cartilages of the dog ear (auricular, annular, and scutiform cartilage).Let’s try to identify the following structures from the outer part of a dog ear. Now, I will show you the different structures from the auricle or pinna, external acoustic meatus with the diagrams of dog ears. Again, the sound conducts through the external acoustic meatus to the tympanic membrane of the dog’s inner ear. The outer part of the dog ear considers as the sound gathering structure. It is a somewhat funnel-shaped structure but may vary between species and within the domestic breed. The anatomy of the dog external ear consists of skin-covered cartilages, auricle, and external acoustic meatus. Then, you should learn the detailed anatomy of these structures from the three different parts of the dog ear. What should you do now to learn the details anatomical facts of the dog ear? Simply, you should try to identify the basic structures from the three parts of the dog ear with the help of below-mention labeled diagrams. Finally, the inner or internal ear has the important functions of hearing and equilibrium. Again, the middle part of a dog ear helps conduct the collected sound into the inner ear. The external ear of a dog is responsible for collecting the sound from the environment. In the bony or osseous labyrinth, you will find three important structures (vestibule, cochlea, and semicircular canals). In addition, the internal ear of a dog consists of a bony labyrinth that accommodates an almost similar-shaped membranous labyrinth structure. There you will also find the ligaments and muscles associated with the auditory ossicles. Again, in the middle ear, you will find the tympanic membrane, tympanic cavity, and three tympanic ossicles. The external ear of a dog consists of the auricle or pinna and the external auditory meatus.

You may divide the dog ear into three portions for the description purpose – the external, middle, and internal ear. Frequently asked questions on dog ears.Īs a veterinary student or pet dog practitioner, you might have a good piece of knowledge on dog ear anatomy.Membranous labyrinth of the dog inner ear anatomy.Semicircular canals in the dog inner ear.The stapes of the dog ear (auditory ossicle).Auditory ossicles of the dog middle ear.The auditory or Eustachian tube of the dog ear.The tympanic cavity of the dog ear anatomy.The tympanic membrane of the middle ear of a dog.The external acoustic meatus of the external dog ear.Auricular or conchal cartilage of dog ear.

Auditory meatus