12 cranial nerves
DESCRIPTION
ppt from dr. fabie :)TRANSCRIPT
![Page 1: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/1.jpg)
12 CRANIAL NERVES
By: Dr. Pamela Josefina T. Fabie
![Page 2: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/2.jpg)
![Page 3: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/3.jpg)
OLFACTORY NERVE
Cranial Nerve I
![Page 4: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/4.jpg)
I. Olfactory Nerve
Component: Sensory
Function: Smell
Opening to the Skull: Openings in cribriform plate of ethmoid
Origin: Olfactory receptor nerve cells
![Page 5: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/5.jpg)
Olfactory Nerve
![Page 6: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/6.jpg)
OPTIC NERVE
Cranial Nerve II
![Page 7: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/7.jpg)
II. Optic Nerve
Component: Sensory
Function: Vision
Opening to the Skull: Optic Canal
Origin: Back of the eyeball
![Page 8: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/8.jpg)
II. Optic Nerve
![Page 9: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/9.jpg)
OCCULOMOTOR NERVE
Cranial Nerve III
![Page 10: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/10.jpg)
III. Occulomotor Nerve
Component: Motor
Function: Raises upper eyelid Turns eyeball upward, downward
and medially Constricts pupil Accommodates the eye
Opening to the Skull: Superior orbital fissure
Origin: Anterior surface of the midbrain
![Page 11: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/11.jpg)
III. Occulomotor Nerve
![Page 12: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/12.jpg)
TROCHLEAR NERVE
Cranial Nerve IV
![Page 13: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/13.jpg)
IV. Trochlear Nerve
Component: Motor
Function: Assisting in turning eyeball downward and laterally
Opening to the Skull: Superior orbital fissure
Origin: Posterior surface of the midbrain
![Page 14: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/14.jpg)
IV. Trochlear Nerve
![Page 15: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/15.jpg)
TRIGEMINAL NERVE
Cranial Nerve V
V1. Ophthalmic NerveV2. Maxillary NerveV3. Mandibular Nerve
![Page 16: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/16.jpg)
V. Trigeminal Nerve
![Page 17: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/17.jpg)
V1. Ophthalmic Nerve Component: Sensory
Function: Cornea Skin of forehead Scalp Eyelids and nose Mucuos membranes of paranasal
sinuses and nasal cavity
Opening to the Skull: Superior orbital fissure
Origin: Anterior aspect of the pons
![Page 18: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/18.jpg)
V1. Ophthalmic Nerve
Infratrochlear
![Page 19: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/19.jpg)
V1. Ophthalmic Nerve
![Page 20: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/20.jpg)
V2. Maxillary Nerveo Component: Sensory
o Function: o Skin of the face over maxillao Teeth of the upper jawo Mucous membrane of the nose, the
maxillary sinus and palate
o Opening to the Skull: Foramen ovale
o Origin: Anterior aspect of the pons
![Page 21: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/21.jpg)
V2. Maxillary Nerve
![Page 22: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/22.jpg)
V3. Mandibular Nerveo Component: a. Motor
o Function: o Muscles of masticationo Mylohyoido Anterior belly of
digastrico Tensor veli palatineo Tensor tympani
o Opening to the Skull: Foramen Rotundum
o Origin: Anterior aspect of the pons
![Page 23: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/23.jpg)
V3. Mandibular Nerve• Component: b. Sensory
• Function: • Skin of cheek • Skin over mandible and side of head• Teeth of lower jaw and TMJ• Mucous membrane of mouth and anterior
part of tongue
• Opening to the Skull: Foramen Rotundum
• Origin: Anterior aspect of the pons
![Page 24: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/24.jpg)
V3. Mandibular Nerve
![Page 25: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/25.jpg)
ABDUCENT NERVE
Cranial Nerve VI
![Page 26: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/26.jpg)
VI. Abducent Nerve
Component: Motor
Function: Lateral rectus muscle turns eyeball laterally
Opening to the Skull: Superior orbital fissure
Origin: Anterior Surface of hindbrain between pons and medulla
![Page 27: 12 cranial nerves](https://reader035.vdocuments.us/reader035/viewer/2022081513/55655300d8b42a77078b4a9d/html5/thumbnails/27.jpg)
VI. Abducent Nerve