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Light shown into the eye will result in a decrease of the papillary diameter which nerves are involved in this reflex?
The autonomic nervous system is responsible for controlling the pupillary reflex. The parasympathetic nerves, specifically the oculomotor nerve (cranial nerve III), cause constriction of the pupils in response to light.
Which cranial nerve controls hearing and body balance?
The cranial nerve that controls hearing and body balance is the vestibulocochlear nerve, also known as cranial nerve VIII. It has two main branches: the cochlear branch, responsible for hearing, and the vestibular branch, responsible for balance and spatial orientation.
What is the Cranial nerve II called?
The second cranial nerve is the optic nerve.
What cranial nerve is responsible for slowing the heart rate and accelerating peristalsis?
The vagus nerve (cranial nerve X) is responsible for slowing the heart rate (parasympathetic control) and accelerating peristalsis in the gastrointestinal tract.
Smell impulses are carried by the cranial nerve called the?
Smell impulses are carried by the cranial nerve called the olfactory nerve (cranial nerve I). It is responsible for transmitting information about odors from the nose to the brain.
Light shown into the eye will result in a decrease of the papillary diameter which nerves are involved in this reflex?
The autonomic nervous system is responsible for controlling the pupillary reflex. The parasympathetic nerves, specifically the oculomotor nerve (cranial nerve III), cause constriction of the pupils in response to light.
Which cranial nerve is responsible for your tears?
V is responsible for tear reflex in response to cornea irritation, VII has a parasympathetic branch responsible for emotional tears.
What is the cranial cranial nerve responsible for?
equilibrium, taste, tears, and tongue movement
Which cranial nerves is responsible for olfaction?
The olfactory nerve which is also cranial nerve number 1 is responsible for the sense of olfaction.
What cranial nerve is responsible for transmitting visual information?
Cranial Nerve 2 - Optic Nerve
What is the difference between a spinal reflex and a cranial reflex?
A cranial reflex is one that is controlled by one of the cranial nerves and tend to take place in the facial or head area. These can include reflexes like the constriction of the pupils in response to light, etc. A spinal reflex, on the other hand, is a reflex that involves only the spinal nerves and is not processed by the brain. An example is the patellar reflex, like when the doctor hits your knee and it reflexively moves. Hope this helps! :)
Is the response of your pupil a reflex or a voluntary action?
The constriction of pupils in response to bright light is called the pupillary light reflex. If the light is shining directly into one eye, then the pupil in that eye will constrict (a direct response), but so will the pupil in the non-illuminated eye (a consensual response).This reflex involves two cranial nerves: the optic nerve, which senses the light, and the oculomotor nerve, which constricts both pupils. It is considered involuntary since you don't think about it.
Which cranial nerve control contraction of the circular smooth muscle of the iris?
The parasympathetic fibers of the oculomotor nerve (cranial nerve III) control the contraction of the circular smooth muscle of the iris, causing pupil constriction.
Which one is cranial nerves 2?
Cranial nerve number 2 is the optic nerve, responsible for most of the sensation of sight.
What reflex is centered in the brain and involves cranial nerves?
The reflex that is centered in the brain and involves cranial nerves is the cranial reflex. An example of this is the pupillary light reflex, where light exposure causes the pupils to constrict. This reflex involves the optic nerve (Cranial Nerve II) for sensing light and the oculomotor nerve (Cranial Nerve III) for pupil constriction. The processing occurs in the brainstem, illustrating the integration of sensory and motor functions.
Which cranial nerve controls hearing and body balance?
The cranial nerve that controls hearing and body balance is the vestibulocochlear nerve, also known as cranial nerve VIII. It has two main branches: the cochlear branch, responsible for hearing, and the vestibular branch, responsible for balance and spatial orientation.
Which cranial nerve will help you blink your eyes?
The third cranial nerve, the oculomotor is responsible for blinking and most other eyelid movement.
