An individual's heart rate will tend to increase steadily until it reaches its maximum - the maximum frequency at which a heart can beat.
Usually people who exercise don't come to this point where their heart couldn't go up anymore as this is extremely taxing on one's body.
Rather than stopping completely, Luis should lower the speed of the treadmill, making the aerobic lower, and let his heart rate gradually enter his target range. Stopping completely will interrupt the workout and could negatively impact his muscles and joints, and slowing down the treadmill will allow his body to gradually settle into a new aerobic intensity that's closer to his target.
Answer:
It diffuses across the synaptic cleft to bind with synaptic receptors on the post-synaptic neuron . This cause influx of sodium ions though the ligand gated sodium channels into the synaptic cleft for depolarization. If this is upto to the threshold levels it generate Excitatory Post Synaptic Potential(EPSP) . However if at neuromuscular junction the acetycholine will diffuse across the cleft and bind with receptors (Nicotinic receptors) on the motor end plate to cause sodium influx. This generate action potential if up to the threshold and therefore muscle contraction.
Explanation:
Label I believe but are there answer choices?
