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What nerve governs most of the extrinsic eye muscle?
Trochlear Nerve innervates Superior Oblique(extrinsic eye muscle)Oculomotor Nerve innervates Inferior Oblique, Superior Rectus, Inferior Rectus, and Medial Rectus (which are all extrinsic eye muscles) along with Ciliary Body, and the Iris (which are both intrinsic eye muscles)Abducens Nerve innervates Lateral Rectus(extrinsic eye muscle)
What is the area of skin innervated by the single spinal or cranial nerve called?
Dermatome
What is the area of the skin innervated by a single spinal or cranial nerve called?
Dermatome
What abducts the eye?
The lateral rectus muscle, innervated by the 6th cranial nerve (the Abducens)
What is the name and number of the cranial nerve that involves shrugging the shoulders?
The Cranial Nerves that helps in shrugging of shoulder is the XI Cranial Nerve Nervus Accessorius or Accessory Nerve that innervated the Trapezius Muscle
What cranial nerve that is involved in rolling the eyes?
The levator palpebrae muscle is primarily responsible for opening the eyelids, it is innervated by cranial nerve 3 (occulomotor nerve). Raising the eyebrows, which will also open the eyes wider and may be what you are asking about, is done by occipitofrontalis. This muscle is innervated by cranial nerve 7 (facial nerve).
Muscle inserts into the mastoid process?
Posterior Belly of Digastric Muscle (innervated by CN VII) Facial nerve Sternocleidomastoid (innervated by CN XI) Spinal accessory nerve Longissimus Capitis (innervated by dorsal rami of C3-C8 spinal nerves) Splenius Capitis (innervated by dorsal rami of middle cervical spinal nerves)
What muscle roles your eye counter clockwise?
The primary muscle responsible for moving the eye counterclockwise is the superior oblique muscle, which is innervated by the trochlear nerve (cranial nerve IV). Additionally, the lateral rectus muscle, innervated by the abducens nerve (cranial nerve VI), assists in this movement by pulling the eye outward. Together, these muscles coordinate to achieve the desired counterclockwise rotation of the eye.
What is the nerve supply of the muscles of facial expression?
The facial muscles are innervated by facial nerve (cranial nerve VII). In contrast, the nearby masticatory muscles are innervated by the mandibular nerve, a branch of thetrigeminal nerve (V).
What Supplies motor fibers to the muscles of the tongue?
The hypoglossal nerve, or cranial nerve XII, supplies motor fibers to the muscles of the tongue. It innervates all intrinsic and most extrinsic muscles of the tongue, facilitating movements essential for speech and swallowing. Dysfunction of this nerve can lead to difficulties in these functions and may result in atrophy or weakness of the tongue muscles.
What cranial nerve feeling a toothache?
Trigeminal (V) cranial nerveYou have a nerve that is inside the tooth. Anytime you have a toothache it is the nerve that is infection. Not all toothaches are due to infection.You can have pain due to the possibility of a cavity, gum disease, or even your wisdom teeth (the human mouth usually does not have room for wisdom teeth causing the to push against the teeth in front of them.Do not wait to long going to the dentist as it can get worse and can get very expensive.Hope this helps!
What cranial nerve is associated with speech?
This question is too broad. There are many different cranial nerves that are responsible for the muscles involved in the ability to speak (tongue, jaw, mouth, etc.) The actual ability to speak originates from your cerebral cortex (Wernicke's area & Broca's areas).
