Sciatic Nerve pain in your lower back that sometimes radiates down your leg and you find it impossible to sit down comfortably? Relief is on the way! The Sciatic Nerve is actually three nerve endings that exit the base of your spinal column‚ then travel across your buttocks and down the backs of your legs. Along this path your Sciatic Nerve passes through several thick muscles. When these thick muscles‚ like your Hamstrings or Piriformis Muscle tighten up‚ they can swell and press on the nerve which
Premium
sciatic nerve‚ speed of transmission and degree of myelination can all have an effect on the sciatic nerve and therefore the peak contractile force of B. Marinus. The diameter of the axon in the sciatic nerve would impact how fast the action potential is conceived down the axon to the synaptic cleft and muscle (Firmin‚ L. 2014). If one of the toads had a smaller axon diameter it would allow for resistance to movement to occur due to friction. The diameter of the axon in the sciatic nerve would therefore
Premium Muscle Brain Muscular system
reflex arc‚ study the time taken between a stimulus and a response‚ how the spinal cord and peripheral nerves function‚ and how to measure and record response time related to a stimulus using the Labscribe software. For the second part of the lab‚ electromyograms will be triggered and recorded in order to study the Achilles and patellar stretch reflex and the reflex arc. Also‚ to understand nerve conduction velocity‚ EMG‚ and motor control. 2. The objectives of the first part of this lab is to
Premium Knee Muscle Nerve
There are three main nerves in your hand radial nerve‚ median nerve‚ and ulnar nerve. Each one of these gives movement and feeling to different areas of the hand. The ulnar nerve is one of the three main nerves in your arm. It travels from your neck down into your hand. The most common place for this nerve is behind the inside part of the elbow. The radial nerve descends down the arm with in the triceps with in the upper arm. Then moves down the arm within the humerus also known as the radial
Premium Nervous system Neuron Brain
slight improvement in the ability to move the foot. He had weakness with dorsiflexion of the ankle and with moving his toes. He was evaluated by an orthopedic doctor and a repair of ligaments of the knee was recommended. However‚ there was concern of nerve involvement as well. Electrodiagnostic tests carried out demonstrated a connected‚ but abnormal peroneal but also tibial component function. When the patient went in for a physical examination‚ he was wearing a brace on his left knee with extensive
Premium Muscle Nerve
The Germen chemist Dr. Gerhard Schrader was given a task to develop a pesticide. In just two years tabun was born‚ it had extremely high toxicity and was the first of the substances later referred to as nerve agents. A factory was built and produced during the years of 1942-1945 12‚000 tons of the chemical warfare agent tabun was made; in which the allies took large quantities of tabun at the end of the war. Even though Hitler and his army were losing the war‚ Schrader and his co-workers synthesized
Premium World War I Biological warfare DNA
Name:shasou Exercise 3: Neurophysiology of Nerve Impulses: Activity 5: The Action Potential: Measuring Its Absolute and Relative Refractory Periods Lab Report Pre-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1. Which of the following occurs after the peak of the action potential? Your answer : b. Voltage-gated K+ channels open. Correct answer: d. All of these occur. 2. What is meant by Na+ channel inactivation? Your answer : a. The Na+ channel opens when the membrane
Premium Neuron Action potential Muscle
spinal stenosis at this level. In addition‚ there is a disc osteophyte complex and disc space narrowing at L5-S1 with mild spinal stenosis and left greater than right mild foraminal stenosis. Furthermore‚ there is impingement upon the left L5 nerve root. EMG and nerve conduction report dated 05/06/14 revealed evidence of bilateral L5 lumbar radiculopathy and bilateral peripheral neuropathy. Per operative reports‚ IW underwent left L4-5 and L5-S1 transforaminal ESI on 11/07/2014; 05/15/2015; and 07/24/2015
Premium Myocardial infarction Diabetes mellitus Blood
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 sensory and motor. Moreover‚ both the optic nerve and the trigeminal nerve carry sensory information from the eyes to the brain (Marieb & Hoehn‚ 2014‚ p.495). Meanwhile‚ the nerves that carry motor
Premium Nervous system Brain Retina
The contents of the pterygopalatine fossa include The terminal portion of the maxillary artery; The pterygopalatine ganglion; The maxillary division of the trigeminal nerve; and branches of these structures. Maxillary Artery The third‚ or pterygopalatine portion‚ of the maxillary artery enters the pterygopalatine fossa from the infratemporal fossa via the pterygomaxillary fissure | Maxillary artery and its distribution
Premium