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42 Cards in this Set
- Front
- Back
Which cranial nerves exit the Medulla Oblongata? |
CN IX, X, XI, XII. |
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What cranial nerve is indicated by the orange arrow? |
CN IX, the Glossopharyngeal Nerve. |
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What cranial nerve is indicated by the orange arrow? |
CN X, the Vagus Nerve. |
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What cranial nerve is indicated by the orange arrow? |
CN XI, the Spinal Accessory Nerve. |
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What cranial nerve is indicated by the orange arrow? |
The Trigeminal Nerve, CN V |
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What cranial nerve is indicated by the orange arrow? |
CN IV, the Abducens Nerve |
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What is the function of the Glossopharyngeal Nerve (CN IX)? |
CN IX conveys general and taste sensation from the posterior 1/3 of the tongue, and innervates the pharyngeal muscles and the parotid gland. |
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Where does CN IX exit the brainstem? |
The Glossopharyngeal Nerve exits the Medulla Oblongata just caudal to its junction with the Pons and dorsal to the Inferior Olive. |
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Which cranial nerves exit the Pons? |
CNs V, VI, VII, VIII. |
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Which cranial nerves exit the Mesencephalon? |
CNs III, IV |
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What structure is indicated by the blue arrow? |
The Basilar Pons (or just pons) |
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What does the anterior surface of the Pons consist of? |
Transversely arranged fibers which arise as axons of neurons in the pontine nuclei. |
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What structure is indicated by the blue arrow? |
The Vagal Trigone |
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What structure is indicated by the blue arrow? |
The Hypoglossal Trigone |
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What structure is indicated by the blue arrow? |
The Decussation of the Pyramids |
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What structure is indicated by the blue arrow? |
The Olive |
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What structure is indicated by the blue arrow? |
An Inferior Cerebellar Peduncle. |
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What are the Inferior Cerebellar Peduncles composed of? |
They consist chiefly, but not exclusively, of pathways afferent to the cerebellum. |
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What structure is indicated by the blue arrow? |
The Nucleus Gracilis (Gracile Tubercle) |
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What structure is indicated by the blue arrow? |
The Fasciculus Gracilis |
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What information is carried by the fasciculi gracilis and cuneatus? |
They transfer information concerning proprioception, fine touch and vibration sense. |
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What structure is indicated by the blue arrow? |
The Fasciculus Cuneatus |
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What structure is indicated by the blue arrow? |
The Nucleus Cuneatus (Cuneate Tubercle) |
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What nerve is indicated by the blue arrow? |
The Trigeminal Nerve (CN V) |
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Where does CN V arise? |
From the region where the fibers of the Basilar Pons become continuous with the Middle Cerebellar Peduncle. |
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What does CN V supply? |
It supplies motor innervation to the muscles of mastication and sensory innervation to the structures of the face and mouth. |
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What nerve is indicated by the blue arrow? |
The Abducens Nerve (CN VI) |
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What nerve is indicated by the blue arrow? |
The Facial Nerve (CN VII) |
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What nerve is indicated by the blue arrow? |
The Vestibulo-cochlear Nerve (CN VIII) (also called the Auditory Nerve) |
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What nerve is indicated by the blue arrow? |
The Oculomotor Nerve (CN III) |
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What nerve is indicated by the blue arrow? |
The Trochlear Nerve (CN IV) |
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What nerve is indicated by the blue arrow? |
The Trochlear Nerve (CN IV) |
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What structure is indicated by the blue arrow? |
One of the Superior Colliculi of the Corpora Quadrigemina. |
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What structure is indicated by the blue arrow? |
One of the Inferior Colliculi. |
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What is the function of the Abducens Nerve? |
It provides motor innervation to the lateral rectus muscle of the eye. |
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What structure is indicated by the blue arrow? |
The Facial Colliculus. |
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What does the Facial Nerve innervate? |
It provides taste to the anterior 2/3 of the tongue and motor innervation to the muscles of facial expression (among other things). |
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What is the function of the Vestibulocochlear Nerve? |
The Vestibular Root conveys information of balance and the position of the head. |
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What area is indicated by the blue arrow? |
The Vestibular Area |
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What structure is indicated by the blue arrow? |
The Middle Cerebellar Peduncle |
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What structure is indicated by the blue arrow? |
The Superior Cerebellar Peduncle |
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What type of information is carried on the Superior Cerebellar Peduncle? |
It largely carries efferent fibers from the Cerebellum. |