Sensory Receptors Quiz

What type of cell is a motor neuron?

• Muscle cell

• Nerve cell

• Bone cell

• Blood cell

What is the initial step in the process of muscle contraction?

• Release of calcium

• Generation of a nervous system signal

• Binding of ATP

• Breakdown of glucose

How does the number of fibers recruited in a motor unit vary?

• It is always constant

• It varies with the size of the muscle and the role

• It depends on the time of day

• It changes with the weather

What is the impulse created by the nervous system called?

• Synaptic potential

• Resting potential

• Action potential

• Membrane potential

What is secreted across the synaptic cleft?

• Dopamine

• Serotonin

• Acetylcholine

• Norepinephrine

What part of the neuron passes signals?

• Axon

• Dendrites

• Myelin

• Synapse

What connects to the muscle fiber in the diagram?

• Dendrites

• Axon

• Neuromuscular junction

• Synapse

What happens if the action potential does not reach the threshold?

• Partial contraction occurs

• No contraction occurs

• Full contraction occurs

• Muscle relaxes

What is the primary function of thermoreceptors?

• Detecting light

• Sensing temperature changes

• Monitoring blood pressure

• Detecting sound

Which receptors are involved in monitoring blood pressure?

• Baroreceptors

• Proprioceptors

• Chemoreceptors

• Thermoreceptors