Which two structures make up the neuromuscular junction?

Which of the following cellular structures stores calcium in the muscle fiber (cell)?

Some muscles in the body are always contracting – they never rest! This is the case of the muscles that allows us to remain upright. Which term is given for muscles that are always contracting

When an action potential reaches a muscle cell it travels down this structure to reach the sarcoplasmic reticulum?

You are investing a disease that destroys the axons of neurons. Which of the following do you think would occur as a result of this disease?

What is the graph in the image below showing?

Check all of the following statements that are true about the myelin sheath

What structure is shown in the image below?

These are hollow spaces in the brain that cerebrospinal fluid flows through to nourish brain tissue. 

Describe two functions of the spinal cord.