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What 2 muscles are innervated by cranial nerve XII besides the 4 intrinsic lingual muscles and the 4 extrinsic lingual muscles?
Geniohyoid & Thyrohyoid as the Hypoglossal nerve is joined by fibers from C1 which supply them
What nerve sends messages to the brain from the tongue?
The "Lingual Nerve"The lingual nerve is a branch of the mandibular nerve (CN V3), itself a branch of the trigeminal nerve, which supplies sensory innervation to the tongue. It also carries fibers from the facial nerve, which return taste information from the anterior two thirds of the tongue.Source:- http://en.wikipedia.org/wiki/Lingual_nerve
Where do nerve impulses first stimulate a skeletal muscle fiber?
The motor nerve cells control the skeletal muscle
When a muscle contracts it does what?
In order for a muscle to contract, the brain sends a nerve impulse to the muscle it wants to contract. The nerve impulse triggers the potassium inside the muscle fiber cell to switch places with the calcium outside the cell wall, thereby feeding the cell and contracting the muscle. A second nerve impulse from the brain triggers the calcium to switch places with the potassium, releasing the contracted muscle.
Trochlear nerve conveys proprioceptor impulses from the medial rectus muscle to the brain?
false....SUPERIOR OBLIQUE MUSCLE
What branch of a nerve carries a message to the brain from a muscle?
afferent
What kind of nerve is the trigeminal nerve?
Cranial Nerve 5 (trigeminal), division V3 contains a buccal nerve, a lingual nerve and an inferior alveolar nerve.
What is linguidal canal?
The lingual canal, also known as the lingual nerve canal, is a small passage in the mandible (lower jawbone) that houses the lingual nerve, which is responsible for sensory innervation of the anterior two-thirds of the tongue. It also contains blood vessels that supply this region. Understanding the anatomy of the lingual canal is important in dental procedures to avoid nerve damage and ensure patient safety.
Taste fibers to anterior two thirds of the tongue are carried by?
the Chorda Tympani nerve ( a branch of the facial nerve VII) which joins the lingual nerve medial to the lateral pterygoid muscle.
What causes muscle contraction in the leg?
Muscle contraction in the leg is caused by the interaction between nerve signals from the brain and the muscle fibers. When the brain sends a signal to the muscle, it triggers the release of calcium ions, which then bind to proteins in the muscle fibers, leading to the contraction of the muscle.
What portion of the motor neuron is in the nerve?
A motor neuron is a nerve, specifically it is a nerve that originates in the central nervous system (brain and spinal cord) and ends in its target organ (muscle, gland etc).
How is lingual nerve neurophy treated?
Treatment for lingual nerve neuropathy may include medications for pain management, physical therapy exercises to maintain function, and surgical interventions such as nerve decompression or repair for severe cases. It is important to consult with a healthcare provider for proper diagnosis and management.
