Which of the following minerals are involved in muscle contraction and nerve impulse transmission?

The minerals involved in muscle contraction and nerve impulse transmission are primarily Calcium and Potassium.

1. Calcium: This mineral is crucial for muscle contraction. When a nerve stimulates a muscle, calcium is released; it helps the proteins in muscle carry out the work of contraction. The muscle only relaxes once calcium is pumped back out of the muscle.

2. Potassium: This mineral is essential for nerve impulse transmission. It helps to maintain the electrical conductivity of the cells, especially the nerve cells. When a nerve impulse is transmitted, potassium ions rush out of the neuron, creating a change in voltage that propagates the signal.

Other minerals like Sodium and Magnesium also play a role in these processes. Sodium works in conjunction with Potassium in nerve impulse transmission, while Magnesium is necessary for the proper functioning of the muscular system.