Cranial nerves

the muscular system covers the nervous system so it doesn’t get damaged. The main structures of the muscle system are skeletal tissue, smooth tissue, and cardiac tissue. The main structures of the nervous system are the brain, spinal cord, and the nerves around the brain and spinal cord. The function of the muscle system is to help the body move and get around, while the main function of the nervous system is to help the body feel pain, pleasure, and help keep the body in a safe…

Head. Client has symmetrical structure without deformities or lesions. Her hair is wavy and thick. Client’s scalp is without tenderness, lesions, pests, or flaking. Her facial movements are strong, appropriate, and symmetrical. The client is able to detect sharp and dull sensations on her forehead, cheek, and chin. Eyes. The client’s vision is 20/30 in her left eye and 20/200 in her right eye with the Snellen chart. Her gaze is steady and fixed without nystagmus. The client’s conjunctiva is…

Part Two: Diagnosis and Treatment 7. What is myelin and how does it affect the transmission of nerve impulses? Identify the cells responsible for the formation of myelin. Covering some axons is a multilayered lipid and protein called myelin sheath, this helps to insulate the axon and speed up nerve impulses. (Tortora pg. 407) An axon that is surrounded by myelin sheath, whether in the central nervous system (CNS) or the peripheral nervous system (PNS), is said to be “myelinated”, while the bare…

Both of these tests are noninvasive, can be easily performed on infants and detect sensory hearing loss. However, A-ABR test measures the peripheral auditory system, as well as the cranial nerve and brainstem pathway, while EOAE test measures the peripheral auditory system and the outer hair cells of the cochlea. In the past, NIH has recommended ABR testing for infants who failed initial EOAE testing (NIH, 1993). While infants with positive…

Studies conducted by Stephen Walter Ranson demonstrated that a specific population of nuclei identified as the supraoptic nuclei of the hypothalamus had nerve projections that terminated in the posterior pituitary, and through animal studies, lesioning this tract of nerve fibers without failure produced DI (Fisher et al., 1938; Ranson 1937). A significant breakthrough came about through discovery of control and regulation of ADH release through experimental studies…

Chief Complaint Rule out Parkinson 's disease. History The patient is a 64-year-old right-handed white female who presents with her daughter for evaluation of several symptoms. These include balance problems and a tendency to fall backwards, change in her voice and micrographia. They are wondering whether or not she has Parkinson 's disease. She stated that her voice went first about two years ago. She notes that it is getting a little lower, [____]and softer. It is not persistently…

Introduction Headaches are pain that is found any region of the head. Nerves, blood vessels and muscles found in the head and neck area are all involved in the causes of headaches; usually over activity of these structures and chemical actions can all be sources of why the condition exists. Primary headaches are symptoms that are not caused by another ailment. They can be categorized into migraines, tension headaches, and cluster headaches. A very common type of head ache is tension headaches…

organs (Moore, 2016) It originates from two germ layers, the endoderm and mesoderm, and receives nerve supply by cells derived from the third germ layer, the ectoderm(van den Brink, 2007) (McLin et al., 2009) The earliest stage of development is the ‘primordial gut’ which forms during the 4th week as the head, tail (caudal eminence) and lateral folds. Initially the primordial gut is closed at its cranial end by the oropharyngeal membrane and at its caudal end by the cloacal membrane. Germ…

that the entire mechanism can function as a whole. Visual prosthetics fall under two different categories. The first category includes prosthetics that are implanted in the eye. These usually require less invasive surgery for installation than optic nerve implants because surgery involves only the eye and does not require tampering with the skull around the eye (Pezaris et al, 2009). Research on in-eye prosthetics mainly focuses on developing a retinal prosthetic. A positive aspect to developing…

Case Study Assignment #1- Stroke Patient Assessment Introduction Stroke is the single leading cause of adult disability in Canada, also accounting for one third of all deaths (Ontario Stroke Network, 2017). Approximately 14,000 Canadians die from strokes annually, and around 430,000 Canadians live with the debilitating effects of stroke (Ontario Stroke Network, 2017). For the purpose of this assignment and to maintain patent confidentiality, the examined patient will be referred to as a…