The Brain and Cranial Nerves Essay

Words: 1666
Pages: 7
Open Document
The Brain and Cranial Nerves

One of the most complex and fascinating things in the human body is the brain. The body is "capable of almost everything, but it would not be possible, without the brain receiving information, and analyzing the information." The brain is aware of its surroundings, via input from the spinal cord and cranial nerves. Cranial nerves with sensory functions allow us to smell and see. Nerves with both motor and sensory functions are responsible for everything from tasting and chewing, to breathing and the heating of your heart. Many of the little things we take for granted are also made possible by cranial nerves. Solving problems, feeling hungry, laughing. Each of these activities occurs in a different …show more content…
Cranial Nerve I – The Olactory Nerve. This nerve has only a special sensory component. Special sensory is the sense of smell or olfaction. Cranial Nerve II – The Optic Nerve. The optic nerve has only a social sensory component, this special sensory conveys visual information from the retina. Cranial Nerve III – The Oculomotor Nerve. This nerve consists of two components with distinct functions. The somatic motor supplies four of the six extraocular muscles of the eye and the levator palpebroce superioris muscle of the upper eyelid. The visceral motor through the parasyimpathetic innervations of the constrictor pupil and ciliary's muscles. The visceral motor component is in the papillary light so by reflex your pupil will dilate or not. Cranial Nerve IV – The Trochlear Nerve. The trochlear nerve has only a somatic motor component. The somatic motor signal the superior oblique muscle of the contralateral orbit. The superior oblique muscle is one of the six extraocular muscles responsible for the precise movement of the eye for visual tracking or fixation on an object. Cranial Nerve V – The Trigeminal Nerve. This cranial nerve has three components. The nerve has three branches – the opthalmie nerve that is sensory for your face and mouth. The maxillary nerve for chewing and the mandibular nerve for sensation of pain and the jaw. Cranial Nerve VI – The Abducens Nerve. This nerve has only a
Show More

Related Documents: The Brain and Cranial Nerves Essay

Cranial Nerves Essay

Cranial Nerves The human body is a unique and fascinating entity. There is not much notice taken of the features the human body is capable of. The brain is necessary to perform day-to-day actions, such as the ability to speak, and see amongst us. This brain is made up of simple mater (Pia mater, Arachnoid mater, Dura mater) and the cranial surface to protect the brain. We live our daily lives without acknowledging the importance of this organ, the brain, unless you’re a medical student of…

Words 3650 - Pages 15

Essay on Brain and Eeg Pattern

cerebrospinal fluid. 3. Describe the formation and circulation of the cerebrospinal fluid and the pathway by which it returns to the circulation. 4. Identify the regions of the brain in which the blood-brain barrier is absent. 5. Describe the need of the brain for glucose and the body’s mechanisms to meet that need. 6. Identify the important functions of the spinal cord. 7. Distinguish between the function of the white and grey matter…

Words 791 - Pages 4

Test 4 Study Guide Essay

Test 4 1. If you have a stroke on the right side of your body, which part of the brain is affected? left 2. What side of the brain controls the language, math and logic? Left hemisphere 3. If you are right handed you usually are _____________ brained. left 4. What do you call someone who can write with both hands? ambidextrous 5. What is the name of for the Lord most High? Jehovah elyon 6. The somatosensory association cortex integrates sensory information 7. What part…

Words 3603 - Pages 15

Education: Olfaction and Taste Essay

project through pores and chemically sense the food. There are gustatory receptor cells that communicate with cranial nerve axon endings to transmit sensation to the brain. There are five taste sensations located on the tongue. They are sweet located front middle, sour located middle sides, salty located front side/tip, bitter located back, and umami located posterior pharynx. The cranial nerves that are associated with our taste sense are VII Facial located within the tongue, IX Glossopharyngeal located…

Words 305 - Pages 2

Lyme Disease Pathology

manifestations are observed. These include “…seizures, hallucinations, diplopia, cranial nerve palsies, or altered levels of consciousness” (Shalabi, et al 2006). Lymphocytic meningitis itself is self-limiting and rarely treated. Sometimes, IV acyclovir is administered for rapid resolution of symptoms. Lyme associated radiculoneuritis is a PNS neuroborreliosis. It occurs when the spirochete affects one or more nerve roots. Symptoms usually include symmetrical or asymmetrical pain and neuro-abnormalities…

Words 1107 - Pages 5

Anatomy Test Review Essay

extends from conus medullaris, it consists primarily of pia matter and decends through spinal nerve roots in the caudia equina, later it becomes Filum Terminale externum and attaches to coccyx posteriorly e. Cauda equine--Bundle of spinal nerve roots running inferior to spinal cord through the lumbar cistern (subarachnoid space) Resembles a horse tail f. Spinal Nerves--Are points where Posterior/Anterior nerve roots unite at points of exit from vertebral canal Posterior (Sensory) Anterior (Motor) Presynaptic…

Words 1706 - Pages 7

Glioma Informative Speech

I am going to be giving you my knowledge and information on brain tumors. There are many different kinds of brain tumors, but, the ones I am going to be telling you about are Glioma brain tumors, Oligodendroglioma brain tumors, and Schwannoma brain tumors. Brain tumors can be either benign, malignant, or they can be both by starting off as benign and turning malignant. Brain tumors arise from the meninges and not from the actual neurons themselves. They originate from a specific cell or structure…

Words 881 - Pages 4

Essay on Nervous System

organs are the cranial nerves. There are twelve cranial, or at least twelve main ones. One: the olfactory nerve—a purely sensory nerve—transmits the sense of small and allows it to be processed within the brain. Two: the optic nerve—another purely sensory nerve—is for transmitting visual information to the brain. Three: the oculomotor nerve—mainly a motor oriented nerve—controls the movement of the eyeball and the eyelid. Four: the trochlear nerve—another mainly motor oriented nerve—turns the eyes…

Words 1802 - Pages 8

Hidden Medical Issues

Navasota, Texas Nov. 2013 Halifax, Nova Scotia, Canada Navasota, Texas, US No conflict of interest Objectives 1. After this workshop you will understand many of the hidden medical aspects of CHARGE Syndrome including: o Feeding issues o Cranial nerves anomalies o Obstructive sleep apnea and postoperative airway events. 2. You will be more aware of bone health and puberty issues. 3. We will share many stories and learn from each other Let’s Rate Your CHARGEr’s Eating Difficulties Over the…

Words 2274 - Pages 10

Essay about Anassah Autonomic Nervous System

system. 2013 Index to this page The Sensory-Somatic Nervous System The Cranial Nerves The Autonomic Nervous System The Sympathetic Branch The Parasympathetic Branch The PNS consists of   sensory neurons running from stimulus receptors that inform the CNS of the stimuli motor neurons running from the CNS to the muscles and glands - called effectors - that take action. The CNS consists of the   spinal cord and the brain The peripheral nervous system is subdivided into the   sensory-somatic…

Words 1403 - Pages 6