What vital signs or symptoms does Annie exhibit? Blurred vision & eye strain, feel weak, gasping for air, constant fatigue
Can you see any common features in Annie’s signs and symptoms? With blurred vision and eyestrain we must look at the optic nerve within the brain. From there, what could be causing the difficulty breathing and weakness? It must be a neurological problem involved with the synaptic centers. Since Annie is having such problems when she is working out hard and just playing around it can’t be related always to work, but to everyday tasks as well. Often we see that having eyestrain is just the beginning. Whenever you don’t see well other factors will play into it, ...view middle of the document...
Draw in a reflex that includes a sensory nerve, an interneuron, and a motor nerve.
How could a decline in muscle function contribute to eye strain and blurred vision? When looking at the eye muscles or the cilliary body and suspending fibers of the lens we can see how muscle dysfunction can lead to eyestrain. The lens of the eye is suspended by fibers from a muscle in the eye called the cilliary body. When light is refracted into the eye through the lens it hits a point called the fovea centralis, which focuses the light with the use of cones and sends a message to the brain. When the cilliary body doesn’t help the lens to focus and achieve the message signal to the brain, we get double vision. Also, if the fluid that is within the posterior area of the anterior cavity doesn’t have a way to exit via the scieral venous sinus there can be fluid buildup and lack of perfect vision. Therefore, we can show how blurred vision can be caused a different number of ways and there are many more that we could account for.
What are the possible reasons for Annie’s condition? The most possible reason for Annie’s condition would be lack of oxygen in the bloodstream which would cause muscle crams and lactic acid buildup after long workouts and holding your breath under water, or multiple sclerosis whish has all of the symptoms expressed and more that do not involve swimming.
According to the conduction test, was Annie’s nerve function normal? “The nerve conduction velocity (NCV) test has been considered the gold standard method for diagnosing diabetic neuropathy, but it requires the application of a strong electrical stimulus to nerves, causing discomfort and pain in patients”. This test stimulated the flexior digitorum superficialis muscle that is on the forearm of all humans. By reaching a threshold we will see when the twitch is present. People that are diabetic, or have injuries to the feet can have nerve damage and have this test done to see where threshold is. Threshold is defined by Marieb as the “weakest stimulus capable of producing a response in an irritable tissue”. “Beyond this pint, the muscle contracts more and more vigorously as the stimulus strength is increased”. This can also develop to be a maximum stimulus, which is expressed as a flowing contraction movement of the muscle.
According to Annie’s emg test, was Annie’s skeletal muscle function normal? In the electromyography test, Annie was to complete the program in two stages: “stimulate the muscle directly” and “nerves were stimulated and the muscle response recorded”. In the first test, Annie’s results showed that her muscles were normal. The second test, Annie’s “muscle response decreased quickly during repeated nerve stimulation
Considering your answers to Questions 1 and 2, why did activity in Annie’s motor nerves produce a skeletal muscle response that fatigued during repetitive stimulation? Fatigue can be described as the, “’failure to maintain the...