Sensory Systems

Which of the following refers to the sense of smell?

• Gustation

• Proprioception

• Olfaction

• Electroreception

Which sensory capability is NOT found in humans?

• Proprioception

• Olfaction

• Electroreception

• Gustation

What is the process called that converts a stimulus into an electrical signal in the nervous system?

• Sensory adaptation

• Sensory transduction

• Sensory perception

• Sensory reception

Which part of the nervous system is primarily involved in the process of sensation?

• Central Nervous System (CNS)

• Peripheral Nervous System (PNS)

• Autonomic Nervous System (ANS)

• Somatomotor Nervous System (SNS)

Which choice describes the role of the brain?

• It generates the initial stimulus

• It transduces the stimulus into neural signals

• It interprets and gives meaning to incoming signals

• It sends the stimulus to sensory organs

What is the first step in sensory transduction as outlined in the overview?

• Ion channel activation

• Neuron firing

• Stimulus

• Reception

What happens to the neuron when there is a positive change in membrane potential?

• It hyperpolarizes

• It increases production of chemoreceptors

• It depolarizes

• It stops functioning

What must occur for a neuron to fire?

• A negative change in membrane potential

• A positive change in membrane potential

• Crossing a threshold of polarization change

• Constant depolarization

What is the role of ion channels in the process of sensory transduction?

• They generate stimuli

• They detect sensory inputs

• They affect changes in electrical potential

• They fire the neurons directly

What is the function of the gated ion channels in the sensory transduction process as shown in the diagram?

• They release neurotransmitters.

• They detect changes in temperature.

• They allow cations to flow, initiating a signal.

• They provide structural support to the cell.