A Review of Facial Nerve Anatomy Terence M. Myckatyn‚ M.D.1 and Susan E. Mackinnon‚ M.D.1 ABSTRACT An intimate knowledge of facial nerve anatomy is critical to avoid its inadvertent injury during rhytidectomy‚ parotidectomy‚ maxillofacial fracture reduction‚ and almost any surgery of the head and neck. Injury to the frontal and marginal mandibular branches of the facial nerve in particular can lead to obvious clinical deficits‚ and areas where these nerves are particularly susceptible to injury
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Trigeminal nerve: V1 and V2 Trigeminal nerve provides large root of sensory nerve to the front of the face and head‚ and a small root of motor nerves to innervate muscles of mastication‚ mylohyoid‚ and digastric (anterior belly) Sensory root Fibres Convey common sensation (touch‚ temperature‚ pressure‚ pain) to the skin of the front of the face and the scalp as far back as the vertex of the head Sensory innervation to the oral cavity‚ dental and paradental structures For this reason‚ branches
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Gray matter 2) The filum terminale is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral column b) An indentation on the dorsal side of the spinal cored c) The tapered end of the spinal cord d) An extension of the pia mater that anchors the spinal cord to the coccyx e) Where the cell bodies of sensory neurons are located 3) The cauda equina is a) The roots of spinal nerves hanging inferiorly from the end of the spinal cord in the vertebral
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Lab Report: Exercise 10: Organization of Nervous Tissue Purpose: What is the purpose of this exercise? Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. To understand the structure and function of multipolar neuron‚unipolar and bipolar neurons. Also to identify the structures of a nerve. There are no safety concerns for this lab. Step 1: Relates to Lab Exercise 10/Activity 1‚ 3‚ and 4. Assignment 1: Write a brief description
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Lab Report Yasmeen Abuarqoub Lab Partner: Kiana Kiser BIOL 203- 511 4/20/2016 Introduction: The purpose of this study is to help the experimental subject with her vision problems. The twelve cranial nerves include the olfactory nerve‚ optic nerve‚ oculomotor nerve‚ trochlear nerve‚ trigeminal nerve‚ abducens nerve‚ facial nerve‚ vestibulocochlear nerve‚ glossyopharyngeal nerve‚ vagus nerve‚ accessory nerve‚ and the hypoglossal nerve. Each nerve functions as sensory‚ motor‚ or both
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A growing number of researchers regard the question of how much heredity and environment contribute to differences among people as Selected Answer: mainly answered by DNA. Question 2 0.5 out of 0.5 points Fetal monitors Selected Answer: track the baby’s heart rate during labor. Question 3 0 out of 0.5 points Patsy and Terry are fraternal twins. This type of twinning results from Selected Answer: the fertilization of one ovum by two Y-bearing sperm
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Cranial Nerve Palsy: with an Emphasis on Sixth Cranial Nerve Palsy Cranial Nerve Palsy With an Emphasis on Sixth Cranial Nerve Palsy I. What are Cranial Nerves? * Cranial nerves are nerves that come directly from the brain stem in contrast to spinal nerves which come from segments of the spinal cord. * There are twelve Cranial nerves in humans that fit this description. * They mainly serve the motor and sensory systems of the head and neck region; except for the tenth
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head and the skin was reflected. The skull was nibbled avoiding damage to the brain. The brain was removed by releasing it gently from all its attachments from below and sides. Trigeminal ganglia were separated by cutting at the junction where the nerve enters into the brain stem. The brain was cleaned and washed with tap water followed by sterile water to remove excessive fixative materials. Olfactory bulbs were separated from the brain along with a small portion of the frontal pole. Cerebrum and
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Biology 315. Anatomy and Physiology I. Chapter 14. The Brain and Cranial Nerves. Tortora and Grabowski‚ 13th edition. 2012. I. Brain Organization‚ Protection‚ and Nourishment. A. Major Parts of the Brain: brain stem‚ cerebellum‚ diencephalon‚ and cerebrum B. Blood Flow Through the Brain.: substantial; 20% cardiac output at rest; Lack of blood flow > a couple of minutes = permanent damage. Glucose supply must be constant (Sx of hyper/hypoglycemia) 1. Arterial supply
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Occlusion Intraarch— prox contact betw teeth tooth inclination: inclined to receive closing force along axes occlusal plane curvature (Curves of Spee & Wilson) Spee— anteroposterior mand canine→along buccal cusp tips affects posterior cusp height **protects against protrusive interferences Wilson—translateral curve lingual inclination of mand posteriors **protects against lateral interferences Interarch— arch length: max
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