The Benefits of Exercise

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Which of the following is a proven benefit of regular exercise?

Enhanced immune system (correct)

Increased blood pressure

Improved brain function

Faster muscle growth

What physical changes occur within the body during exercise?

Slower response of capillaries to requirements

Improved blood supply to active muscles (correct)

Reduced volume of blood that can be pumped by the heart

Decreased blood supply to active muscles

How does exercise affect the heart?

Weakens the heart muscles

Enhances the mechanical effectiveness of the heart (correct)

Causes the heart to adapt more slowly to exertion

Reduces the volume of blood that can be pumped

What is one benefit of exercise besides maintaining and losing weight?

Reduced risk of brain diseases Signup and view all the answers

How does exercise affect the immune system?

Boosts the effectiveness of the immune system Signup and view all the answers

Which of the following is NOT one of the major functions of the nervous system?

Digestive function Signup and view all the answers

What is the purpose of the neural network in the nervous system?

To gather information about our inner and external surroundings Signup and view all the answers

What are the cells called that convey information in the nervous system?

Neurons Signup and view all the answers

How are messages relayed between different parts of the body in the nervous system?

Through neurons Signup and view all the answers

Which of the following is NOT a component of a neuron?

Muscle fiber Signup and view all the answers

What is the main function of dendrites in a neuron?

To bring information from other neurons Signup and view all the answers

What is the purpose of the axon in a neuron?

To feed information through the nerve Signup and view all the answers

What is the main function of a neuron?

To convey information in the nervous system Signup and view all the answers

What allows for quick communication and continuous conduction of signals across a neuron?

The axon Signup and view all the answers

Which of the following is the correct definition of a synapse?

A tiny empty space between two cells Signup and view all the answers

What is the role of neurotransmitters in a synapse?

To bind to the receiving cells located before the synapse Signup and view all the answers

What is the purpose of an action potential?

To transmit movement to the end location Signup and view all the answers

Which of the following is an example of how a message is transmitted in the nervous system?

A call to move your finger travels from the brain, through many neurons, and finally to the muscle in your finger Signup and view all the answers

What is the function of a receptor in the nervous system?

To receive signals from the action potential Signup and view all the answers