HC2 Quiz – Faith & Reason

Human Cognition Investigation 2 Quiz

1 / 10

A student can distinguish two nearby points on a fingertip but cannot distinguish the same two points on the forearm. What is the best explanation?

The fingertip contains larger sensory neurons.

The forearm sends signals more slowly to the brain.

The fingertip has a higher density of sensory receptors.

The forearm contains fewer motor neurons.

2 / 10

A student accidentally touches a hot pan and immediately pulls away. Which sequence best describes what happened?

Muscle → Motor neuron → Spinal cord → Sensory neuron → Receptor

Receptor → Motor neuron → Spinal cord → Sensory neuron → Muscle

Receptor → Sensory neuron → Spinal cord → Motor neuron → Muscle

Receptor → Sensory neuron → Brain → Motor neuron → Muscle

3 / 10

Why are the hands and lips shown much larger than the back on the sensory homunculus?

They are physically larger body parts.

They contain more muscles.

They have many more sensory receptors and receive greater brain representation.

They are located closer to the brain.

4 / 10

Which situation is an example of your brain processing information from the external world?

Feeling hungry

Detecting an increase in blood carbon dioxide

Feeling a mosquito land on your arm

Your heart beating faster during exercise

5 / 10

Which pathway correctly describes how information travels during a simple reflex?

Receptor → Motor neuron → Spinal cord → Muscle

Receptor → Sensory neuron → Spinal cord → Motor neuron → Muscle

Receptor → Brain → Motor neuron → Muscle

Motor neuron → Receptor → Spinal cord → Muscle

6 / 10

Which structure is responsible for detecting a stimulus?

Sensory neuron

Motor neuron

Receptor

Muscle

7 / 10

Which statement best explains why reflexes are important for survival?

They always involve conscious decisions.

They allow the brain to ignore sensory information.

They produce rapid protective responses before conscious awareness.

They eliminate the need for the cerebral cortex.

8 / 10

Which of the following is an example of an external stimulus?

Touching a hot stove

A decrease in blood glucose

An increase in carbon dioxide in the blood

A change in blood pressure

9 / 10

What is the primary function of a sensory receptor?

To send commands directly to muscles

To detect a stimulus and convert it into a nerve signal

To produce hormones that control reflexes

To store memories of sensory experiences

10 / 10

Which part of the nervous system usually processes a simple reflex before you become consciously aware of the stimulus?

Cerebrum

Cerebral Cortex

Spinal cord

Brainstem

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Assessment Overview

Human Cognition Investigation 2