PSYB55H3 Lecture Notes - Lecture 7: Paresis, Primary Motor Cortex, Dysarthria
Document Summary
Measure how much a muscle fibre is extended or contracted. Reveal action potentials of the neurons associated with extending or flexing a muscle. The neuromuscular junction: motor end plate and the role of ach release. Acetylcholine is released at the end plate and combines with receptors on the muscle fibres and results in a contraction. Black widow: increases acetylcholine release and causes contraction of muscles. Myasthenia gravis: autoimmune disorder caused by the dysfunction of the immune system such that the acetylcholine is altered. Signaling between the body and the spinal cord. Brain to spine to out of body to move the way you want to move. Frontal lobes helps to inhibit sources in the body and testing spine and brain health. Extrapyramidal do not cross at the medulla. Tectospinal: helps to control eye and head movement. Reticulospinal: muscle tone, keeps your muscles ready to move. Plegia - paralysis of a body region.
