Facial Nerve Research Paper
The facial nerve is the seventh paired cranial nerve. It is a mixed nerve. Its conveys the sensation of taste and is motor to all the skeletal muscles derived from the second pharyngeal arch. The nerve is secreto-motor to the lacrimal, submandibular and sublingual salivary glands.
Parts of facial nerve:
The facial nerve consists of two parts: the facial nerve proper and the nervus intermedius. The facial nerve proper is the motor root of the facial nerve consisting of the axons of SVE (branchiomotor) neurons whose cell bodies reside in the facial nucleus. This nucleus contains subnuclei, each supplying specific muscles or groups of muscles. The nervus intermedius is sometimes referred to as the “sensory root,” which is a misnomer since in
…show more content…
The motor nucleus of facial nerve is situated in lower pontine tegmentum. It is located in the ventrolateral part of the tegmentum of lower pons, dorsal to superior olivary nucleus and ventromedial to spinal trigerminal nucleus. It belongs to the special visceral efferent column. Axons from this nucleus supply skeletal muscle derived from the second pharyngeal arch. This nucleus consists of multiple neuron and have many subdivisions. The fibres first pass in a dorsomedial direction and then loop over the abducent nerve and produce a small round swelling in the floor of the 4th ventricle.
The superior salivary and lacrimatory nuclei of the facial nerve are also present in the lower half of the of pons. These nuclei are small collections of cholinergic nerve cells in dorso-lateral reticular formation. The neuron of these two nuclei seems to be intermingled with each other. They represent the general visceral efferent component of the facial nerve.
The nucleus of tractus solitarius and spinal trigeminal nucleus are the two sensory nuclei associated with facial nerve situated in the
Head And Neck Case Study
952 Words | 4 PagesLast, the zygomaticus minor elevates the upper lip. c. Each of these muscle have which three characteristics in common? These muscles all contribute to the movement of the mouth, are innervated with the facial nerve (N VII), and insert around the mouth.
Nt1310 Unit 2 Study Guide
644 Words | 3 PagesReticular Activating System: A major part of the brain stem, The RAS
Forebrain Research Paper
721 Words | 3 PagesThe parietal lobes are where information such as taste, temperature (warmth, cold), and touch are interpreted or processed. Lastly, the somatosensory cortex receives all sensory input from the body.
Phantom Limb Pain: A Case Study
214 Words | 1 PagesBecause people who have phantom limb pain complain of a constant pain many health practitioners have attempted surgery based upon the premise that it is a nerve issue; however, surgery to fix the pain is unsuccessful. Ramachandran came up with the concept that the somatosensory homunculus on the right side of the brain has the representation of the face next to the hand on the cortex. Because the hand is no longer present, there is no stimulus coming from the hand to the somatosensory cortex. The cortex wants stimulation from the hand therefore the face encompasses the hand section of the somatosensory cortex and begins to activate the hand when the face has a stimulus. This apparent reorganization of the individual’s somatosensory cortex
George Washington's Oral Health Issues
200 Words | 1 PagesThe grey eyes stare through the canvas, judging passers with a scowl. While George Washington was undoubtedly a great man, admired widely in his own time and ever after for intelligence, bravery, and kindness, it would be hard to tell from his portraits. This is because Washington was a lifelong victim of oral health issues that left him with only one of his original teeth intact when he took office and caused discomfort and embarrassment that kept him from speaking in public. The same consequences apply to any adult today who needs to be able to look approachable and speak well to do their job.
Cauda Equina Vs Spinal Cord
622 Words | 3 Pages1.Spinal cord - is a long, and tubular shaped structure that contains nervous tissue and cells located at the end of the brainstem and continues down to the bottom of the vertebral column. It used to connect the peripheral nervous system and the brain. It acts as sensory system and transmitted message to the brain. 2.Conus medullaris - is a tapered structure that located in the most distal part of the spinal cord and end with filum terminale. 3.Cauda equina - It makes of spinal nerves and spinal nerve root that located near the first lumbar vertebra of spinal cord.
Bio202 Endocrine Research Paper
1633 Words | 7 PagesThe hypothalamus communicates to each lobe differently. The hypothalamo-hypophyseal tract system is the specific way the hypothalamus communicates with the posterior lobe of the pituitary gland. It is a nervous system connection with direct connecting neurons. The neurons are located in the hypothalamus and then axons extend down to the posterior lobe of the pituitary gland. The neurons produce hormones that slide down the axons and end up in the posterior lobe.
The Midbrain Research Paper
311 Words | 2 PagesThe tectum is made up of two round pairs of ‘swellings’- the inferior colliculus and the superior colliculus. The inferior colliculus is located above the superior colliculus and process the sensory signals
Pituitary Gland Research Paper
4529 Words | 19 PagesThe pituitary is a small gland found inside the skull just below the brain and above the nasal passages, which are above the fleshy back part of the roof of the mouth (known as the soft palate). The pituitary sits in a tiny bony space called the sella turcica. The nerves that connect the eyes to the brain, called the optic nerves, pass close by it. Is a small neuro-endocrine organ with a diameter of only 1 centimetre,
Cleft Lip And Palate Case Study
2842 Words | 12 PagesWe cannot see the bones because it is covered by the mucosa ( moist , pink tissue covering the body parts ). When you open your mouth you can see the hard palate which is present in front of your mouth. Hard palate is made up of processes of maxilla and the horizontal plates of the palatine bones. It is bounded: • Anteriorly and Laterally : alveolar arches or maxillary teeth • Superiorly : respiratory epithelium of nasal cavity • Inferiorly : masticatory epithelium of oral cavity • Posteriorly : connected to the soft palate Blood supply of hard palate is mainly from greater palatine artery and nerve supply is via tha anterior palatine and nasopalatine nerves. [2] 2.
Essay On Mudra Therapy
896 Words | 4 PagesThe ulnar nerve innervates the little finger and half of the ring finger both in the dorsal and palmar side. The Radial nerve is distributed to the little finger and half of the ring
Dorsal Disc Essay
873 Words | 4 PagesSecond branch is the sinuvertebral nerve is a small branch arising from the ventral ramus traverses medially over the posterior aspect of the disc, vertebral body and posterior longitudinal ligament and supplies these structures. Third branch, the dorsal ramus courses dorsally and pierces the intertransverse ligament near the pars interarticularis and divides into 3 branches which supply the structures dorsal to the neural canal. The lateral and intermediate branches supply the posterior musculature and skin while the medial branch divides into 3 branches and supplies the facet joints at and the adjacent
Sciatic Nerve Lab Report
843 Words | 4 PagesHowever no variation in relation with piriformis and level of terminal division was observed in foetuses. The length of sciatic nerve in foetuses varied from 7.1 cm to 8 cm on both sides. The breadth of the nerve varied from 0.2 cm to 0.35 cm on the right side and 0.19 cm to 0.3 cm on the left side. The thickness of the sciatic nerve ranged from 0.09 cm to 0.12 cm on both
Mental Foramen
804 Words | 4 PagesMental foramen is one of the most important and studied foramen’s of the mandible. The mandibular foramen is an opening seen on the medial ( internal ) aspect of the mandible which leads into a funnel like mandibular canal,that opens at the mental foramen on the anterolateral surface of the mandible. The mandibular nerve passes through this canal, travels obliquely forward and takes a turn from the incisal region to reach the mental foramen and exit as inferior alveolar nerve and vessels. It is this inferior alveolar nerve that branches into the mental nerve which would provide sensory innervation the skin of the chin, the gingiva and mucosa in the region of anterior teeth, lower lip. It is of paramount importance that the surgeons know of
Essay On Human Spine
1235 Words | 5 PagesThe spinal cord and nerve roots are preserved by the vertebral body, supports the body and responsible for carrying weight. The disks allow movement in the spine and have a shock absorbing. They separate the vertebrae from each other so they also protect them from the wear and tear. There is an empty space in the spine to permit the nerve roots and spinal cord to pass inside. There are 33 vertebrae and 23 intervertebral disks in normal adult spine.
More about Facial Nerve Research Paper
Head And Neck Case Study
952 Words | 4 PagesNt1310 Unit 2 Study Guide
644 Words | 3 PagesForebrain Research Paper
721 Words | 3 PagesPhantom Limb Pain: A Case Study
214 Words | 1 PagesGeorge Washington's Oral Health Issues
200 Words | 1 PagesCauda Equina Vs Spinal Cord
622 Words | 3 PagesBio202 Endocrine Research Paper
1633 Words | 7 PagesThe Midbrain Research Paper
311 Words | 2 PagesPituitary Gland Research Paper
4529 Words | 19 PagesCleft Lip And Palate Case Study
2842 Words | 12 PagesEssay On Mudra Therapy
896 Words | 4 PagesDorsal Disc Essay
873 Words | 4 PagesSciatic Nerve Lab Report
843 Words | 4 PagesMental Foramen
804 Words | 4 PagesEssay On Human Spine
1235 Words | 5 Pages