9. How does the human body communicate information about homeostasis? Keep the i

Question

9. How does the human body communicate information about homeostasis? Keep the information general (don’t use a specific example). You can abbreviate terms as long as you define the abbreviations you use.

Use these terms )controlled variable deviates from normal, controlled variable returns to normal, action potential, synaptic transmission, neurotransmitter, EPSP, IPSP, sensory receptor, cell-surface receptor, sensory neuron, interneuron, motor neuron, effector, effect, somatic nervous system, autonomic nervous system, sympathetic nervous system, parasympathetic nervous system, smooth muscle, cardiac muscle, skeletal muscle, endocrine gland, exocrine gland, negative feedback, photoreceptor, chemoreceptor, mechanoreceptor, thermoreceptor, nociceptor, central nervous system, brain, spinal cord, changes in contraction/relaxation, hormone release )

Explanation / Answer

9. The homeostasis mechanism controls the internal environment and maintain the equilibrium usually by feedback controls.

To maintain homeostasis, the human body needs to communicate with itself

i. Stimulus: produces a change to a variable

ii. Receptor: It monitors the change to the environment and responds to the stimuli

iii. Input: The information from the stimuli travels through the afferent pathways to the control center and the brain determines the appropriate course of action.

iv. Output: The information from teh control center travels down to the response organ through efferent pathways.

v. Response: a response from the effector balances out the original stimulus to maintain homeostasis.

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