Unit 4- Nervous System Flashcards
Post-central gyrus
- Parietal Lobe
* Somatosensory
Pre-central gyrus
- Frontal Lobe
- Somatomotor
- Mapping & Execution
- If you destroy this you’re paralyzed.
Occipital lobe function?
Visual Center
Temporal lobe function?
Hearing
What two regions of the brain does the longitudinal fissure separate?
Right & left cerebral hemispheres
What two lobes does the central sulcus separate?
Frontal and parietal lobes
What lobes does the lateral sulcus/ fissure separate?
Temporal from frontal & parietal.
CN I
Olfactory nerve- smell
*Loss= Anosmia
CN II
•Optic nerve- vision
*Loss= Anopsia
CN III
•Oculomotor Nerve- innervates eye muscles
*Parasympathetic to sphincter pupilae muscle and ciliary muscle to lens of eye.
CN IV
- Trochlear Nerve-Innervates the superior oblique eye muscle
* Motor
CN V
- Trigeminal Nerve- Provides sensory innervation to the face & Provided motor innervation to chewing muscles.
- Mixed
CN VI
•Abducens Nerve- innervates the lateral rectus eye muscle.
•Abducts eye
*Loss= double vision
CN VII
•Facial Nerve
-innervates muscles of facial expression (motor)
*parasympathetic to lacrimal glands & some salivary glands.
-special sensory from taste buds of anterior 2/3 tongue.
•mixed
CN VIII
Vestibulocochlear Nerve- sensory nerve of hearing and balance.
CN IX
•Glossopharyngeal Nerve- Innervates structures of the tongue and pharynx, taste and general sensory from posterior 1/3 of the tongue.
*Parasympathetic to parotid salivary gland
•mixed
CN X
•Vagus Nerve- “Wanders” into thorax & abdomen
*Provides parasympathetic innervations.
•Motor to pharynx and larynx
•Motor to diaphragm
CN XI
•Accessory Nerve- Motor to the sternocleidomastoid and trapezius muscles.
CN XII
•Hypoglossal Nerve- Motor to the intrinsic & extrinsic muscles of tongue.
- Ability to stick out & roll tongue.
- Parasympathetic
Falx Cerebri- in what fissure is it found? What does it separate?
- Found in the longitudinal fissure.
* Separates right & left cerebral hemispheres.
Tentorium cerebelli- what dies it separate?
Occipital lobe from cerebellum.
