Exploring Body Systems: Quiz

During a biology class, Aiden asked his teacher, "What is the main function of the skeletal system?"

• To produce hormones

• To support and protect the body

• To digest food

• To circulate blood

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Which type of muscle is responsible for voluntary movements?

• Cardiac muscle

• Smooth muscle

• Skeletal muscle

• Nervous tissue

Identify the part of the neuron that receives signals from other neurons.

• Axon

• Dendrite

• Myelin sheath

• Synapse

Explain how the muscular and skeletal systems work together to facilitate movement.

• Muscles contract to pull on bones, creating movement at the joints.

• Bones produce energy for muscles to move.

• Muscles and bones are not related in movement.

• Bones push muscles to create movement.

Which of the following is a function of the nervous system?

• To store minerals

• To transmit signals between different parts of the body

• To produce red blood cells

• To digest nutrients

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Compare and contrast the structure of a neuron with that of a muscle cell.

• Both have axons and dendrites.

• Neurons have axons and dendrites, while muscle cells have fibers and myofibrils.

• Both have myofibrils and sarcomeres.

• Neurons and muscle cells have identical structures.

What is the role of calcium in muscle contraction?

• It provides energy for contraction.

• It binds to troponin, allowing actin and myosin to interact.

• It breaks down ATP.

• It inhibits muscle contraction.

Analyze the impact of a spinal cord injury on the nervous system.

• It only affects the brain.

• It can disrupt the transmission of signals between the brain and the rest of the body.

• It enhances the speed of nerve signal transmission.

• It has no effect on the nervous system.

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Which bone is part of the axial skeleton?

• Femur

• Humerus

• Spine

• Tibia

Describe the process of synaptic transmission in the nervous system.

• Electrical signals jump directly from one neuron to another.

• Neurotransmitters are released from the axon terminal and bind to receptors on the next neuron.

• Neurons physically connect to transmit signals.

• Synaptic transmission does not involve neurotransmitters.