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The motor root of the spinal nerve is also referred to as the?
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∙ 12y ago
ventral root
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∙ 12y 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.
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.)
Is the posterior interosseous nerve a cranial nerve or a spinal nerve?
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!
The part of a spinal nerve that contains only sensory neurons is the?
The part of a spinal nerve that contains only sensory neurons is called the ventral root. There's also the axons of motor neurons and axons of sensory neurons.
Which among the frog's spinal nerves is the largest?
YES. Frogs do have spinal cords.
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.
What is a motor nerve?
A motor nerve sends an impulse to certain muscles cells to make them contract. The group of muscle cells and the nerve is called a motor unit. Another Answer: In the field of anatomy and physiology, motor nerves are the ones that transmit impulses, called action potentials, from the central nervous system (brain and spinal cord) to skeletal muscles. Sometimes motor nerves send messages that are voluntary or reflexive in order to make muscles contradict or inhibit muscle contraction.Answer A motor nerve is a kind of nerve that carries impulses from the central nervous system that trigger muscles to contract. It also allow to the brain to stimulate muscle contraction. Motor nerve is also called an efferent nerve that exclusively contains the axons of somatic and branchial motoneurons.
What is cranial nerve 7?
Cranial nerve 7 is also referred to as the facial nerve. It has both sensory and motor components. Its sensory portion is responsible for taste on the anterior two thirds of the tongue as well as sensation for a small patch of skin by the ear. Its motor component is responsible for innervating the muscles of facial expression.
Are efferent nerve fibers also described as motor nerve fibers?
yes
What is motor nueron disease?
When nerve damage effects a motor nerve, you have a motor neuron disease. It is also called neuropathy. For information on nerve damage repair go to www.realfoodnutrients.com/neu/home.htm
What large nerve emerges from the distal end of the spinal cord and supplies the lower extremities?
the cauda equina is the nerve that emerges from the distal end of the spinal cord. it also supplies the lower extremities.
What do nerve cells in the spinal cord sometimes secrete in reaction to pain?
Nerve cells in the spinal cord may also begin secreting pain-amplifying neurotransmitters independent of actual pain signals from the body.
