Effect Of Myopia On Measuring Peripapillary Retinal Nerve Fiber Layer Thickness ABSTRACT Settings: Faculty of Medicine, Alexandria University, Egypt. Purpose: To assess the influence of axial length (AL) and refractive status of the eye on retinal nerve fiber layer (RNFL) thickness in myopic eyes measured by spectral domain optical coherence tomography (OCT). Methods: This study included 60 eyes of 60 healthy myopic individuals. Patients with a history of glaucoma or any other concurrent ocular
2011). Some of these senses include smell, hearing, equilibrium, vision, touch, pressure, temperature, and pain. These all deal with sensory awareness and motor control. (Saladin, 2011). The spinal cord is located between the afferent and efferent fibers pf the peripheral nervous system (PNS) which serves two important roles (Sherwood, 2014). The first is a connection from the brain to the rest of the body to send and receive
The next structure of the eye is the retina it is responsible for the viewing of images in other words it is responsible for your ability to view the external environment around you. The retina which is the “third stage of the eye” (Segre, 2015) is essentially a light-sensitive tissue. The functions of the retina mirror that of a camera 's film roll in which the retina sends a stream of chemicals which move from various areas of the eye eventually creating the image that you see. The entire retina
axons of the foveal cones form Henle’s layer. The central 500 mm of the fovea contains no retinal capillaries (the foveal avascular zone [FAZ]), making the fovea dependent on blood supply from the choriocapillaries.( Curcio CA,1990) The ora serrata delineates the anterior termination of the sensory retina. Cellular organization of the retina:
excitation with an all-or-nothing response, which propagates along the whole length of the fiber. They are innervated by relatively large nerves (7–11 mm), which terminate as large en plaque motor endplates in an endplate zone occupying the central third of the muscle. MIFs are highly fatigue resistant and respond to electrical stimulation with a slow tonic contraction, which is not propagated along the muscle fiber (Barmack, Bell, & Rence, 1971; Bond & Chiarandini, 1983; Chiarandini & Stefani, 1979;
Michelle Leeman Final Exam: 1) Fill in the blanks using the appropriate directional term: (in the anatomical position) (5 pts) a) The heart is posterior to the sternum b) The manubrium is medial to the gleno-humeral joint c) The dura mater is anterior to the spinal cord d) The cranium is superior to the sacrum e) The calcaneus is posterior to the toes 2) What is osmosis? Is osmosis a passive or an active process? Describe how osmosis occurs across the cell membrane. How can the solute concentration
to stimuli and coordinates bodily functions. It consists of nerve cells; know as neurons and Neuroglia. The nerve cells purpose is to transmit nerve impulses that move information around the body. Neuroglia support and protect never cells. Each neurone has an enlarged cell body containing the nucleus and from the body extend several processes called dendrites through which impulses enter from their branches. A longer process, the nerve fibre, extends outwards and carries impulses away from the cell
slides I am now much more comfortable at identifying some basic structures. The tissue slides were very important to my understanding of the tissue's function. By looking at the dense regular tendon I can see how supportive it is because of all of the fibers present. It connected what I had read and studied to an actual picture and that helps with memorization and understanding. Are there any safety concerns associated with this exercise? If so, list what they are and what precautions should be taken
because these cells are long and thin, making them mobile. C. What is matrix? Why do some tissues have more matrix than others? The matrix is the extracellular fibers and ground substance of a connective tissue. Some tissues have more matrix because the cells and fibers are not as tightly packed. D. What do collagen fibers provide? Collagen is strong and flexible and resists force in one direction. It is stronger than steel when
“That’s the thing about pain… it demands to be felt” John Green eloquently states in the tear-jerking novel The Fault in Our Stars. Ask anyone who read the book about the supporting character, charming Augustus Grey, and quickly witness an almost physical wave of acrimony and nostalgia pass over them. Green’s unique ability to demand compassion from the reader through his cleverly compiled diction forces the reader to feel the extreme pain his characters are faced against. Pain brings people together