The motor neuron carries the nerve impulse.
↓
The nerve impulse reaches the neuromuscular junction.
↓
Calcium ions release into the myofibrils.
↓
Myosin and actin protein filaments attach to each other.
↓
Myosin filaments pull on the actin filaments.
↓
The sarcomere shortens.
The neurotransmitter (ACh) from motor neurons signals a muscle fiber to depolarize. The depolarization (Na+) will trigger Ca++ release and will initiate contraction by binding to troponin. Myosin pulls the actin strands. ATP sustains the contraction.
<span>The Autonomic nervous system is also known as the Sympathetic and Para sympathetic nervous system. The Sympathetic nervous system (SNS) is best known for its stimulation of the body’s fight-or-flight (emergency) response, maintaining the body's homeostasis balance like sweating to disspation of heat. It is related more with activities that requires mental or physical alertness such as work and exercise. Conversely, the parasympathetic nervous system is responsible for "rest and recovery" or relaxation responses like sleeping, eating and watching TV. While the SNS increases heartbeat, and blood vessels; the parasympathetic nervous system decreases your heartbeat, relaxes your blood vessels and your muscles</span>
Hello there ^ _ ^
Two methods of active wiretapping are between lines transmission and piggyback entry.
Good luck!
I think it might be B but I am not sure
Have you finished this?? I need gelp
