here's a useful mnemonic that I used in medical school:
1. Some - olfactory (sensory)
2. Say - optic (sensory)
3. Marry - oculomotor (motor)
4. Money - trochlear (motor)
5. But - trigeminal (both)
6. My - abducens (motor)
7. Brother - facial (both)
8. Says - vestibulocholear (sensory)
9. Big - glossopharyngeal (both)
10. Boobs - vagus (both)
11. Matter - accessory (motor)
12. More - hypoglossal (motor)
The question is asking what three cranial nerves are purely sensory in their function. Some relevant terms here are olfactory, optic, and auditory or vestibucochlear or acoustic nerves. The only three cranial nerves that are pure sensory in function are cranial nerve #1 : the olfactory nerve (smell), cranial nerve #2 : the optic nerve (sight), and cranial nerve #8 : the auditory/vestibucochlear/acoustic nerve (hearing).
No, the glossopharyngeal nerve (CN IX) is not the only cranial nerve that contains sensory fibers. Other cranial nerves, such as the trigeminal nerve (CN V), facial nerve (CN VII), vestibulocochlear nerve (CN VIII), and vagus nerve (CN X), also contain sensory fibers in addition to motor or mixed fibers.
The trigeminal nerve (cranial nerve V) conducts sensory impulses from the teeth and face. It is the largest cranial nerve and has three main branches (ophthalmic, maxillary, and mandibular) that innervate different regions of the face.
The Optical nerver or the Second Cranial nerve controls and relays information absorbed through the rods and cones of the eye. Eye movements (eye muscles), however, are controlled by several other cranial nerves including the Oculomotor, Abducens, and Trochlear nerves.
Somatic sensory nerve impulses from the head travel through the cranial nerves, such as the trigeminal nerve (V), facial nerve (VII), and glossopharyngeal nerve (IX). These nerves carry sensory information to the brainstem, specifically to the trigeminal nerve nuclei, which process and relay the information to higher brain regions for further processing and perception.
The question is asking what three cranial nerves are purely sensory in their function. Some relevant terms here are olfactory, optic, and auditory or vestibucochlear or acoustic nerves. The only three cranial nerves that are pure sensory in function are cranial nerve #1 : the olfactory nerve (smell), cranial nerve #2 : the optic nerve (sight), and cranial nerve #8 : the auditory/vestibucochlear/acoustic nerve (hearing).
sensory nerve
The trigeminal nerve (cranial nerve V) carries sensory information to the diencephalon. It is responsible for transmitting sensory information from the face, including touch, temperature, and pain sensations.
The supratrochlear nerve is a small sensory nerve that branches from the frontal nerve, which is a division of the ophthalmic nerve (V1) of the trigeminal nerve (cranial nerve V). Its primary function is to provide sensory innervation to the skin of the forehead and the upper eyelid. It plays a key role in transmitting sensory information, such as touch and temperature, from these areas to the central nervous system.
No, the glossopharyngeal nerve (CN IX) is not the only cranial nerve that contains sensory fibers. Other cranial nerves, such as the trigeminal nerve (CN V), facial nerve (CN VII), vestibulocochlear nerve (CN VIII), and vagus nerve (CN X), also contain sensory fibers in addition to motor or mixed fibers.
The nerve responsible for relaying sensory information to the brain is the cranial nerve. Each cranial nerve is associated with a specific type of sensory input, such as vision (optic nerve) or taste (glossopharyngeal nerve).
The trigeminal nerve (cranial nerve V) conducts sensory impulses from the teeth and face. It is the largest cranial nerve and has three main branches (ophthalmic, maxillary, and mandibular) that innervate different regions of the face.
Trigeminal. Sensory function- touch/temp/pain. Motor function-chewing. Branches-mandibular, maxillary and opthalmic.
eight
The only two cranial nerves that are completely sensory are the olfactory nerve (I) for smell and the optic nerve (II) for vision.
I- Olefactory (sensory): smell. II- Optic (sensory): vision.
The Optical nerver or the Second Cranial nerve controls and relays information absorbed through the rods and cones of the eye. Eye movements (eye muscles), however, are controlled by several other cranial nerves including the Oculomotor, Abducens, and Trochlear nerves.