Human Anatomy Test 3 Notes

Human Anatomy Test 3 Notes - Exam 3 Chapter 14: Peripheral...

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Unformatted text preview: Exam 3 Chapter 14: Peripheral Nervous System The peripheral nervous system includes everything outside the central nervous system. This includes the cranial and spinal nerves. I. Cranial Nerves- Cranial nerves are bilateral; there is one on the right and one on the left side of the body. 4 things you need to know for EACH cranial nerve: 1. The names and roman numerals of each nerve 2. The function of that nerve 3. Motor , Sensory or BOTH 4. The foramen it passes through I. Olfactory nerve Smell Sensory nerve Olfactory foramina I I. Optic nerve Vision Sensory nerve Optic foramina I I I. Oculomotor nerve Motor impulse for medial rectus, superior rectus, inferior rectus, inferior oblique muscles of the eye. Motor nerve Superior Orbital Fissure IV. Trochlear nerve Motor impulse of the superior oblique muscle Motor nerve Superior Orbital Fissure V. Trigeminal nerve (3 Small Divisions): i. V1 (Upper Face) Upper face sensory Sensory nerve Superior Orbital Fissure ii. V2 (Maxillary Region) Sensory impulse face, mouth and tongue. Sensory nerve Foramen Rotundum iii. V3 (Mandibular Region) Role in chewing and taste buds BOTH (Sensory and Motor nerve) Foramen Ovale VI. Abducens nerve Motor impulse of the lateral rectus of the eye Motor nerve Superior Orbital Fissure VII. Facial nerve Facial expression, salivary glands, tear glands, anterior taste bulbs (Sensory) BOTH (Sensory and Motor) Stylomastoid Foramen and Internal Acoustic Meatus VIII. Vestibulocochlear nerve Hearing and balance Sensory nerve Internal Acoustic Meatus IX. Glossopharayngeal nerve Swallowing and salivary glands, proprioception of tongue and posterior taste buds (Sensory), also regulates blood pressure BOTH (Sensory and Motor) Jugular Foramen X. Vagus nerve Swallowing, speech, viscera, respiratory processes, and blood pressure (Motor), taste buds and viscera (Sensory) BOTH (Sensory and Motor) Jugular Foramen XI. Accessory nerve Neck muscles- sternocledomastoid and trapezius (Motor) Motor nerve Jugular foramen XII. Hypoglossal nerve Tongue during eating and speech (motor) Motor nerve Hypoglossal canal I I. Spinal Nerves -30 pairs of spinal nerves 8 Cervical nerves 12 Thoracic nerves 5 Lumbar nerves 5 Sacral nerves 1 Coccyneal nerve A . Spinal nerves made of 2 types of roots: i. Dorsal roots Sensory roots that contain a mass of cell bodies, known as spinal ganglion. ii. Ventral roots- Motor roots that made up of axons. B. 2 Split Divisions i. Dorsal Ramus (Shorter division):- Runs back to the spinal cord. - Innervates the muscle and skin along the vertebral column - Provides sensory information from this same region....
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Human Anatomy Test 3 Notes - Exam 3 Chapter 14: Peripheral...

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