Physical activity has multiple benefits! Physical activity can lower your changes of getting certain conditions such as type 2 diabetes, heart disease, dementia, and much more. Physical activity can also be a stress reducer!
Decreased blood flow to the kidneys causes them to release antinatriuretic hormones. Antinatriuretic hormones are angiotensin II andaldosterone. Angiotensin II stimulates release of ADH and aldosterone,while aldosterone<span> functions in the regulation of sodium and potassium elimination.</span>
Answer:
Myelinated Axons; leak channels are insulated by myelin leading to less loss of current flow and better conduction velocity. Ion channels omly located at nodes of ranvier; thus signal has sultatory conduction along myelin sheaths and jumps and move much quicker
Demyelinating diseases; along locations where myelin sheaths once was current links occur and conduction slows, the signal cannot make it very far because it looses energy as it travels through the axon
Unmyelinated axon; Ion channels are sequentially placed all along axons; thus it takes longer to send signal down axon. the energy isn't leaked out, it still contains the same signal but it is simply slower. distance between voltage gated channels needs to be small enough so local current flow can depolarize the membrane.
N/B; Harder to generate action potential in demyelinating disease
axon diameter( bigger diameter= less resistance= faster current).
