Lab Report on Reflexology
Summary :
Table of Contents
- Introduction
- Reflexes: The body's involuntary responses
- Neurons: The main unit of the nervous system
- The whole process of a knee jerk reflex
- Results
- Calibrating the transducer
- Discussion
- The final results of our experiment
- The existance of sources of error
- Negative feedback
- Conclusion
- References
Abstract
Reflexes are the body's involuntary responses to various stimuli. They are controlled in large part by the human nervous system which has three main functions: sensory input, integration, and motor output. Sensory input is due to sensory receptors throughout the body collecting information about one's external surroundings and internal environment, and relaying them to various information centers. A sensory receptor recognizes some form of stimulus in the external or internal environment and responds by creating graded potentials or action potentials in the cell or in the cell adjacent to it. These action potentials consequently lead to integration. Integration is mainly carried out within the Central Nervous System, which consists of the brain and spinal cord in humans. (Campbell, 1024) Motor output is what occurs when the central nervous system makes sense of the sensory input due to integration, and sends information to effector cells in the body. Effector cells are the gland cells or muscle cells that make sure the body's responses to certain stimuli are carried out. (Campbell, 1024) Nerves conduct these signals. Specifically speaking, the particular nerves that relay the motor and sensory information from the central nervous system jointly make up what is called the peripheral nervous system.
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