Reflexes

1. The Jendrassik maneuver played a major role on the patellar reflex. One of the prevailing hypotheses has to deal with the alpha-gamma co-activation theory. It states that the alpha motor neurons activates the motor tone, which leads to the spindles providing feedback to the brain. This process is done by the gamma motor neurons, who are in charge of controlling the stimulation of the cerebellum. Also, both the alpha and gamma motor neurons meet at the same effector muscles. Furthermore, when…

What is meant by “agonist and antagonist muscle pairs”? Give an example What is meant by agonist in muscle pairs is that it does the majority of the workload in an exercise and is considered the prime mover (primarily responsible for movement). The antagonist in respect to the agonist counteracts. The antagonist helps allow the agonist to perform a task. An example could be the biceps brachii contracts when doing elbow flexion. While the antagonist would be the triceps brachii relaxing during…

Joan Piaget was the man who helped a lot to the world of psychology and sociology. One of the most important things that he made was to create the fact that the cognitive processes of kids are not only undeveloped versions of that of an adult, but that they have their own system. Piaget derive that there are four different stages in the child cognitive development of children. These four stages are: 1-Sensory Motor Stage that occurs in kids from births to two years old. 2-Preoperational that…

Walking is assisted by the brain, spinal cord, muscles, reflexes and receptors. The act of walking begins from brain and spinal cord which is the planning on how to walk. More precisely, it starts from the cerebral cortex. Cerebral cortex is the region of decision-making and it initiates voluntary response, in this case, the act of walking. Basal ganglia are also responsible for voluntary locomotion. It requires the knowledge of the body’s position in space (where am I walking to) and what…

Pavlov was greatly influenced by Sechenov’s Reflexes of the Brain. Specifically, Pavlov was impacted by Sechenov’s suggestion of the relationship between physical and psychical acts being explained through scientific methods. Pavlov was also committed to the scientific method being used to study the central nervous system. He studied digestion, and the reflexes associated with such, primarily in dogs. His work revealed that glandular secretions of saliva…

July 5, 2015 Journal 8 Performing a thorough examination and well-document neurological assessments are integral part of nursing care. The sequence of neurological examination is: mental status, cranial nerves, motor system, sensory system, and reflexes (Jarvis, 2012). A nurse should be a keen observer to recognize abnormal changes of patients. I agree, organize and simplify assessments could help nurses perform assessments much easier. A lot of the assessment gets incorporated altogether when…

Law of Exercise – (p.200) The more an act or response is used in a given situation, the more strongly the act becomes associated with that situation. A circumstance where repetition increases the connection. Conditioned Reflexes (p.203) • Conditioned Reflexes – (p.203) Reflexes that are conditional or dependent on the formation of an association or connection between stimulus and response. Some action or feeling that you…

Discussion: The distribution of each graph is quite comparable as they have similar means and standard deviation, where the preferred hand has a mean of 16.33 and a standard deviation of 2.842 whilst the non-preferred hand has a mean of 17.2 and standard deviation of 2.848. The normal distribution graph of each can be seen below: Preferred Hand vs. Non-preferred Hand: The graphs and boxplots (Figures 1.3- 1.6) seen previously in the results indicate that the two results did not have a normal…

Target fixation is a motorcycle 101 concept that riders learn about when getting their license. Although the problem is easy enough to understand, its solution is easier said than done. Target fixation is the human tendency to "home into" the very thing you wish to avoid. The term was coined during World War 2, when pilots sometimes flew into the targets they were strafing. The problem still exists among pilots today. Operators of highly responsive vehicles, such as aircraft and motorcycles,…

Blood pressure is the pressure applied by blood on the walls of blood vessels, it is controlled by a negative feedback system where heart rate and blood volume need to be altered in order to control the pressure. Local negative feedback systems and heart rate is regulated but the cardiovascular centre which also in turn controls neural and hormonal mechanisms. Neurons regulate heart rate and contractility and some neurons inhibit, stimulate or control heart rate by causing constriction which…