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→Major Foramen and Canals
The mandible can be divided into the '''body''' and the '''ramus'''. The body of the mandible supports the incisor teeth (rostrally) and cheek teeth (caudally). The section of the body which does not support any teeth is called the '''interalveolar margin''' or '''diastema'''. The mandibule also contains the '''mandibular canal''' and the '''mental foramen'''. The '''facial notch''' is on the ventral surface where the '''parotid duct''' (in herbivores) and facial vessels run. The '''ramus''' extends from the caudal end of the body dorsally towards the zygomatic arch. The '''masseter muscle''' attaches to the lateral surface at the '''masseteric fossa'''. The '''medial pterygoid''' attaches to the medial surface at the '''pterygoid fossa'''. The angle of the mandible terminates dorsally in the '''condylar process''' and the '''coronoid process''' which are separated by the '''mandibular notch'''. The '''temporal muscle''' inserts onto the '''coronoid head'''. The condylar process articulates with the mandibular process of the skull (see [[Mastication#Jaw_Articulation|here]]). <br> <br>
The mandible can be divided into the '''body''' and the '''ramus'''. The body of the mandible supports the incisor teeth (rostrally) and cheek teeth (caudally). The section of the body which does not support any teeth is called the '''interalveolar margin''' or '''diastema'''. The mandibule also contains the '''mandibular canal''' and the '''mental foramen'''. The '''facial notch''' is on the ventral surface where the '''parotid duct''' (in herbivores) and facial vessels run. The '''ramus''' extends from the caudal end of the body dorsally towards the zygomatic arch. The '''masseter muscle''' attaches to the lateral surface at the '''masseteric fossa'''. The '''medial pterygoid''' attaches to the medial surface at the '''pterygoid fossa'''. The angle of the mandible terminates dorsally in the '''condylar process''' and the '''coronoid process''' which are separated by the '''mandibular notch'''. The '''temporal muscle''' inserts onto the '''coronoid head'''. The condylar process articulates with the mandibular process of the skull (see [[Mastication#Jaw_Articulation|here]]). <br> <br>
== Major Foramen and Canals ==
== Major Skull Foramen and Canals ==
The '''jugular foramen''' is located either side of basilar part of occipital bone, adjacent to tympanic bulla and contains the '''glossopharyngeal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN IX]]), '''vagus nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN X]]) and '''accessory nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN XI]]). The jugular foramen also contains the '''internal carotid artery'''. The '''foramen magnum''' is formed by the occipital bones and is the spinal cord's passage to the neck and body. The '''alar ligaments''' run through the foramen magnum together with vertebral arteries, spinal arteries and tectoral membranes. The '''hypoglossal canal''' is between paracondylar and condylar processes on lateral part of occipital bone. The '''hypoglossal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN XII]]), '''condylar artery''' and '''condylar vein''' all pass through. The '''optic chiasma''' runs in a transverse depression behind the '''sphenoid rostrum''' on presphenoid bone and facilitates the path of the '''optic nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN II]]). <br> <br>
The '''jugular foramen''' is located either side of basilar part of occipital bone, adjacent to tympanic bulla and contains the '''glossopharyngeal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN IX]]), '''vagus nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN X]]) and '''accessory nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN XI]]). The jugular foramen also contains the '''internal carotid artery'''. The '''foramen magnum''' is formed by the occipital bones and is the spinal cord's passage to the neck and body. The '''alar ligaments''' run through the foramen magnum together with vertebral arteries, spinal arteries and tectoral membranes. The '''hypoglossal canal''' is between paracondylar and condylar processes on lateral part of occipital bone. The '''hypoglossal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN XII]]), '''condylar artery''' and '''condylar vein''' all pass through. The '''optic chiasma''' runs in a transverse depression behind the '''sphenoid rostrum''' on presphenoid bone and facilitates the path of the '''optic nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN II]]). <br> <br>
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The '''orbital fissure''' is on the presphenoid bone and allows the '''opthalmic branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V1]]), '''occulomotor nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN III]]), '''trochlear nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN IV]]) and the '''abducens nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VI]]) to pass through. The '''supraorbital foramen''' is on the frontal bone and allows the '''opthalmic branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V1]]) to pass through together with the '''frontal artery and vein'''. The '''infraorbital foramen''' is on the maxilla and allows the '''maxillary branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V2]]) to pass through together with the '''infraorbital artery and vein'''. The '''mental foramen''' is on rostral end of the mandible and allows the '''mandibular branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V3]]) and the '''mental artery and vein''' to pass. The '''palatine canal''' runs through horizontal plate of palatine bone and allows the '''palatine artery''', '''palatine vein''' and '''palatine nerves''' to pass through. The '''internal acoustic meatus''' is made up of the medial surface of the petrosal part of the temporal bone and is the facial opening for the '''facial nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VII]]). It is also the cochlear opening, dorsal vestibule opening and the ventral vestibule opening for the '''vestibulocochlear nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VIII]]). <br> <br>
The '''orbital fissure''' is on the presphenoid bone and allows the '''opthalmic branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V1]]), '''occulomotor nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN III]]), '''trochlear nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN IV]]) and the '''abducens nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VI]]) to pass through. The '''supraorbital foramen''' is on the frontal bone and allows the '''opthalmic branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V1]]) to pass through together with the '''frontal artery and vein'''. The '''infraorbital foramen''' is on the maxilla and allows the '''maxillary branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V2]]) to pass through together with the '''infraorbital artery and vein'''. The '''mental foramen''' is on rostral end of the mandible and allows the '''mandibular branch of the trigeminal nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN V3]]) and the '''mental artery and vein''' to pass. The '''palatine canal''' runs through horizontal plate of palatine bone and allows the '''palatine artery''', '''palatine vein''' and '''palatine nerves''' to pass through. The '''internal acoustic meatus''' is made up of the medial surface of the petrosal part of the temporal bone and is the facial opening for the '''facial nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VII]]). It is also the cochlear opening, dorsal vestibule opening and the ventral vestibule opening for the '''vestibulocochlear nerve''' ([[Cranial Nerves - Anatomy & Physiology|CN VIII]]). <br> <br>
== Facial Muscles ==
== Facial Muscles ==