Which cranial nerves pass through which foramen?
Which cranial nerves pass through which foramen?
Exiting the skull and extracranial course
| Location | Nerve |
|---|---|
| stylomastoid foramen | Facial nerve (VII) |
| internal auditory canal | Vestibulocochlear (VIII) |
| jugular foramen | Glossopharyngeal (IX) Vagus (X) Accessory (XI) |
| hypoglossal canal | Hypoglossal (XII) |
What nerves pass through the foramen ovale?
The foramen ovale transmits the mandibular nerve, accessory meningeal artery, lesser petrosal nerve and the emissary veins.
What nerve passes through the foramen magnum?
Cranial nerve XI, or the accessory nerve, originates from the upper spinal cord and medulla and enters the skull through the foramen magnum. This nerve innervates the sternocleidomastoid and trapezius muscles and provides motor function.
What foramen does cranial nerve 11 pass through?
Cranial Nerve Review Table
| Cranial Nerve | Foramen | Target, Function |
|---|---|---|
| XI-Spinal Accessory | enters by foramen magnum-> exits by jugular foramen | trapezius, sternocleidomastoid |
| XII-Hypoglossal | hypoglossal canal | all tongue muscles (these end in ‘glossus’) are innervated by CN12 except palatoglossus |
Where do the cranial nerves of a dog come from?
The ontogenetic sequences of muscle-nerve relations often reflect their phylogenetic history (Noden & de Lahunta, 1985). The 12 cranial nerves of the dog emerge from or enter the brain through foramina of the skull to innervate structures of the head and body. They are sensory, motor, or mixed in function.
Where are the ethmoidal foramina in a dog?
You will find two ethmoidal foramina in the frontal bone of the dog. This bone articulates with the nasal bone and maxilla rostrally. Again, this bone also articulates with other bones like parietal, sphenoid, lacrimal, palatine, and ethmoid bones. From this frontal bone area, you might identify the following structures –
Where is the jugular foramen located in a dog’s skull?
The jugular foramen is located between the petrosal part of the temporal bone and the occipital bone of the dog. There is a distinct mastoid process at the petrosal part of the temporal bone. The tympanic part of the temporal bone is the ventral portion and easily identified by its more significant component (bulla tympanic).
Where are the canine teeth located in the dog’s skull?
Parietal bone also takes part in the formation of the roof of the cranial cavity in a dog. You will find an incomplete orbital rim in the dog skull. You will also find a socket in the premaxilla bone for the incisor teeth. There is also a well-developed socket for the canine teeth in the premaxilla bone of the dog.