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what does ninth cranial nerve control? glossopharyngeal nerve is a mixed nerve, it has sensory and motor part. the sensory is at the poserior 1/3 of the tongue. It also is part of the pharyngeal plexus. (9,10,11)
The motor part of the nerve ONLY supply the stylopharyngeus muscle!
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What cranial nerve is also known as the accessory nerve?
The accessory nerve is also known as cranial nerve XI. It is primarily responsible for innervating the sternocleidomastoid and trapezius muscles, facilitating shoulder elevation and head rotation. The nerve has both cranial and spinal components, with its cranial part originating from the brainstem and the spinal part arising from the upper cervical spinal cord.
What cranial nerve forms a cross pattern called a chaisam?
The trochlear nerve (cranial nerve IV) is the only cranial nerve that emerges from the posterior aspect of the brainstem and decussates, forming a chiasmal pattern. It is responsible for the motor function of the superior oblique muscle of the eye.
Where does the accessory nerve originate?
The accessory nerve, also known as cranial nerve XI, originates from two parts: the cranial portion and the spinal portion. The cranial part arises from the medulla oblongata, while the spinal part originates from the upper cervical spinal cord (C1-C5). These two components combine and exit the skull through the jugular foramen before innervating the sternocleidomastoid and trapezius muscles.
What is formed by the union of a cranial and a spinal root?
The union of a cranial and a spinal root forms a mixed spinal nerve. This nerve contains both sensory (afferent) fibers, which carry information from the body to the central nervous system, and motor (efferent) fibers, which transmit signals from the central nervous system to muscles. The mixed spinal nerve branches out to supply various parts of the body, facilitating communication between the nervous system and peripheral structures.
What type of fibers make up the posterior and anterior roots of the spinal nerve?
Both Afferent and Efferentboth sensory and motorContains motor & sensory fibers!The spinal cord consists of nerve fibers that are afferent and efferent.
What contains the cranial nerve and spinal nerve?
Spinal Accessory Nerve
What cranial nerve motor fibers to sternocleidomastoid and trapezius?
The sternocleidomastoid and trapezius muscles are controlled by the accessory cranial nerve. Some call it cranial nerve XI.
What cranial nerve is also known as the accessory nerve?
The accessory nerve is also known as cranial nerve XI. It is primarily responsible for innervating the sternocleidomastoid and trapezius muscles, facilitating shoulder elevation and head rotation. The nerve has both cranial and spinal components, with its cranial part originating from the brainstem and the spinal part arising from the upper cervical spinal cord.
Does the nerve going to the eyebrow go to the spinal cord?
There are 31 pairs of spinal nerves which originate in the spinal cord. There are twelve cranial nerves, which are referred to by Roman numerals. Ten of the twelve cranial nerves originate from the brainstem; the other two stem from the forebrain and thalamus. The nerve that is responsible for eyebrow movement is the VII cranial nerve, also known as the facial nerve. This is one of the ten cranial nerves originating from the brainstem.
The anterior root and the posterior root fuse to form?
Each spinal nerve attaches to spinal cord by a ventral (anterior) root and a dorsal (posterior) root.All spinal nerves are mixed nerves (both motor and sensory).
Structures form by the fusion on the anterior root and posterior nerve root?
Spinal nerve.....
What cranial nerve is involved in hyper extending and flexing the neck?
The spinal accessory nerve (cranial nerve XI) is involved in hyperextending and flexing the neck. This nerve innervates the trapezius and sternocleidomastoid muscles, which are involved in these movements.
What cranial nerve forms a cross pattern called a chaisam?
The trochlear nerve (cranial nerve IV) is the only cranial nerve that emerges from the posterior aspect of the brainstem and decussates, forming a chiasmal pattern. It is responsible for the motor function of the superior oblique muscle of the eye.
What cranial nerve is used when rotating the head?
The spinal accessory nerve, or cranial nerve XI (eleven), is a purely motor nerve which innervates the trapezius and sternocleidomastoid muscles. The sternocleidomastoid muscles are used to turn the head. The Accessory nerve also provides somatic motor fibers to muscles of the soft palate, pharynx, and larynx (spinal and medullary fibers respectively.)
What is the area of the skin innervated by a single spinal or cranial nerve called?
Dermatome
What is the area of skin innervated by the single spinal or cranial nerve called?
Dermatome
Is radiculitis an inflammation of the root of a cranial nerve?
no this term usually applies to that portion of the root that lies between the spinal cord and the intervertebral canal of the spinal column. Is inflammation of the root of spinal nerve
