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Spinal Accessory Nerve
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∙ 14y ago
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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.
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.
Which cranial nerve is responsible for regulating visceral activity?
Spinal accessory
What is nerve that contains filbers that both send and receive messages is called?
It is called a Mixed Nerve Example- all spinal nerves, and cranial nerves V, VII, IX, X.
What nerve stimulates the diaphragm?
ulna
Is the glossopharyngeal nerve the only cranial nerve that contains sensory fibers?
no
Which cavity contains the spinal and cranial cavities?
The cranial cavity contains the brain, pineal and hypophysis cerebri, parts of the cranial and spinal nerves, blood vessels, meninges and cerebrospinal fluid.
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
What does the dorsal cavity contain?
cranial cavity, which contains the brain, and spinal cavity, formed by the vertebrae, which contains the spinal cord.
Cranial cavity contains what?
The cranial cavity contains the brain, pineal and hypophysis cerebri, parts of the cranial and spinal nerves, blood vessels, meninges and cerebrospinal fluid.
