Appendix C Flashcards
Cranial nerve 1 the olfactory nerve does what?
Carries olfactory input to the brain via the olfactory bulb and tract (after receiving the chemical stimuli from the nose). Much of this input is ultimately interpreted by the uncus of each temporal lobe.
Cranial nerve #1
Olfactory nerve
The input from this nerve is ultimately interpreted by the uncus of each temporal lobe.
Cranial nerve pair 1 aka the olfactory nerve pair
Cranial nerve 2 is known as the?
Optic nerve pair
Cranial nerve 2 aka the optic nerve pair does what?
The optic nerve carries about a million neuron fibers back from the retina of each eye to the brain via the optic nerves, Chiasma, and tracts. The neurons near the Calcarine sulcus of each occipital lobe serve as the sight interpretation centers.
The neurons near the Calcarine sulcus in the occipital lobe serve as the ________ __________ centers for the __________ nerve pair?
Sight interpretation, and Optic aka cranial nerve 2
Cranial nerve 3 is known as?
Oculomotor nerve pair
Cranial nerve 4 is also known as?
Trochlear nerve pair
Cranial nerve 5 is known as?
Trigeminal nerve pair
Cranial nerves III, IV, and VI all go to what area?
The eye area
There are six voluntary muscles that allow us to move each eyeball.
True or false
True
They work together so we can see one object instead of having double vision.
Cranial nerve IV (trochlear) controls how many muscles?
One per nerve. Ex a pair will control two muscles, one per eye.
What is the function of cranial nerve IV (trochlear)?
Eye muscle control, eye coordination to see one image.
Cranial nerve III (oculomotor) controls how many eye muscles?
4 muscles per side.
Cranial nerve III (oculomotor) also has parasympathetic control of the smooth muscles of the inside eye that allow?
The use of more or less light, and keeps us in focus when switching to near objects from objects at distance.
Name the three subdivisions of the trigeminal nerve?
Ophthalmic, maxillary, and mandibular.
The trigeminal is primarily a sensory nerve but does provide motor fibers to the muscles that?
Help us chew our food
The trigeminal typically carries what 4 sensations from the facial areas?
Pain, thermal, light and deep touch
The largest cranial nerve with apparent origin from the side of the
Pons?
Cranial nerve V aka the trigeminal nerve
The larger and more complex cranial nerve of the 3 eye muscle control nerves?
Oculomotor nerve. Cranial nerve III
Cranial nerve VI is also known as?
Abducens nerve
Cranial nerve VII is also known as?
Facial nerve
The important motor nerve to the muscles of facial expression?
Cranial nerve VII aka the facial nerve
The sensory component of the ________ nerve brings in Gustatory (taste) sensation from the anterior parts of the tongue.
Cranial nerve VII aka the facial nerve
When a cranial nerve is known for both sensory and motor part sit is known as a?
Mixed cranial nerve
Cranial nerve VIII is also known as?
Vestibulocochlear nerve
Often called the auditory nerve?
Vestibulocochlear nerve
cranial nerve VIII is involved with what structures of the ear?
Vestibule and cochlear
Final interpretation of hearing is where?
Superior temporal Gyrus of each temporal lobe
Superior temporal Gyrus of each temporal lobe serve what purpose?
Final interpretation of hearing
The vestibulocochlear nerve carries input on _________ from the _______ ______
Equilibrium from the inner ear
The nerve that carries input on equilibrium from the inner ear
Vestibulocochlear nerve
The nerves with parasympathetic controls
III, VII, IX, X
The cranial nerve supplying motor and sensory innervate on to the pharynx and back of tongue?
Glossopharyngeal nerve. CN IX
The nerve with parasympathetic control over the salivary glands?
Glossopharyngeal nerve
The glossopharyngeal nerve has parasympathetic control over what glands?
Salivary. Aka parotids
Cranial nerve IX is also known as?
Glossopharyngeal nerve
Cranial nerve XII is also known as?
Hypoglossal nerve
The tongue is motor controlled by what nerve?
Hypoglossal
How many muscles in the tongue?
18 muscles
Cranial nerve X is also known as?
Vagus nerve
The longest cranial nerve?
Vagus nerve
The areas served by the vagus nerve?
Thorax, head, abdomen, neck
Mnemonic (than)
The vagus is longer THAN the rest.
The vagus is what type of nerve?
Mixed nerve
80% is afferent
The vagus has parasympathetic control over what component?
The visceral component
Cranial nerve XI is also known as?
The spinal accessory nerve
This motor nerve comes partly from the medulla oblongata and partly from the spinal cords upper cervical area.
The spinal accessory nerve
The spinal accessory nerve comes from two different parts of body. Name the two parts
Upper cervical of spinal cord. (C1-C5)
Medulla oblongata
Two famous muscles of the neck innervated by the spinal accessory nerve?
Sternocleidomastoid and trapezius
The sternocleidomastoid and trapezius are innervated by what cranial nerve?
Spinal accessory nerve
