It is False that the peripheral nervous system includes the brain and the spinal cord. It is actually the central nervous system that includes the brain and the spinal cord. The answer is false.
Answer:
ATP
Explanation:
ATP is essential for both contraction and relaxation of muscles, with calcium being the main factor for the affinity between actin and myosin, in order to reach the sarcomere shortening phase.
The function of ATP is to release energy for the occurrence of movement, in addition to other actions. While there is calcium bound to troponin, there is cross-bridge(projections of actin filaments) cycling and muscle contraction.
Thus, ATP has three main functions in muscle contraction:
Providing energy to shorten the sarcomere, enabling actomyosinic shutdown by physical-chemical interaction to the thick filament and supporting the calcium pump, which ends the cycling of the cross bridges.
Answer:
The right atrium takes blood from the veins and pumps it into a ventricle
Please mark as brainliest
Answer:
The Answer should be D
Explanation:
Since the line on the graph is a straight line it is a constant speed. Since there is no curve in the line.