Abducens nerve

takes place in the CHN1 gene, it causes the a2-chimaerin to not work properly. This mutation causes some of the nerves that are created by the CHN1 proteins to either be underdeveloped or missing altogether. Jeon-Min Hwang and associates found that the absence of the CHN1 caused the subsequent absence of cranial nerves IV and VI (18). Cranial nerve four, also known as the trochlear nerves, serves to lower the eye as it is adducted by the superior oblique muscles; in

system is a network of neurons (nerve cells that sends information to the brain to be analyzed. Neurons live both in and outside the central nervous system. Understanding how the neurons work is vital to understanding the nervous system. The neuron has two important structures called the dendrite and axon, also called nerve fibers. The dendrites are like tentacles that sprout

is usually not an emergency. This is most often caused by an athletic exertion. Because the fascia does not stretch, this can cause increase pressure on the capillaries, nerves and muscles in the compartment. The blood flow to the muscle and nerve cells is disrupted. Without a steady supply of oxygen and nutrients, the nerve and muscle cells can be damaged. Compartment syndrome most often occurs in the anterior compartment of the lower leg. But can also be present in other compartments in the

536-538 & 542-543). INTRODUCTION Give a brief description in your own words of the objectives and aims of this practical. The aim of this practical was to discover the effects that numerous hormones and drugs have on the sample ileum’s nerves and relate this to the human autonomic nervous system. The objectives include observing the change in contractions during different levels of stimulation and inhibition, such as that from different

computer screen. Notice that your index finger is extended and your other fingers are curled into your palm. How did your hand know to do that? It all began in your brain, the starting point for an important chain of communication. Your brain ordered nerve cells, to activate

cord (Albright, A.L., 1995). James’ excess production of excitatory impulses originates in the golgi tendons of organs and muscle spindle, a specialised sensory receptor in the muscle (Albright, A.L., 1995). The impulse then passes through afferent nerves into the spinal cord and releases excitatory neurotransmitters. In contrast, the lack of ability to generate inhibitory impulses suggest that the regions of the brain responsible for the generation of inhibitory impulses including the basal ganglia

lack in connection between the nerves and muscles. The two parts of the brain affected by spastic cerebral palsy are the cerebral motor cortex and the white matter. The cerebral motor cortex is responsible for movement, hearing, speech, thinking, visual processing etc. Therefore if the cerebral motor cortex is damaged then all those previously listed may be affected. White matter is responsible for transmitting signals to the body, consequently if it is damaged, nerve signals are interrupted. (Common

Amyotrophic lateral sclerosis is commonly referred to as ALS. This disease is also known to many as Lou Gehrig’s disease. ALS is a disease characterized by the slow death of certain nerve cells in the brain and spine. As described by research done through the Mayo Clinic, nerve cells called motor neurons control the muscles that allow you to move muscles of your body. ALS effects these particular neurons and produce serious neurological effects that can start as muscle weakness that eventually leads

formation and reformation of these cross bridges is what is known as cross bridge cycling and is what is responsible for repeated muscle contraction in the same sarcomere. Muscle contractions only occur when they receive action potentials from nerve cells called motor neurons. These motor neurons synapse directly onto muscle cells- sometimes even innervating multiple muscle cells. If there is a need for stronger contraction, motor neurons can be recruited to aid in the increase of muscle contraction

States have LEMS. This disease is an autoimmune disease in which the immune system attacks the body’s own healthy tissues. The immune system attacks neuromuscular junctions, which are the areas where a person’s nerves and muscles connects. This then affects the way muscles and nerves communicate and make it difficult to move muscles. LEMS