Somatic Sensation Classification Quiz

Which type of sensation includes touch, pressure, tension, vibration, and sense of position and movement?

• Thermal sensations

• Mechanoreceptive sensations

• Pain sensation

• Visceral sensations

Where do superficial (exteroceptive) sensations result from stimulation of receptors?

• Viscera

• Muscles, ligaments, joints, and tendons

• Brain

• Skin

Which pathway involves the lateral spinothalamic tract for temperature sensation?

• Epicritic sensations

• Protopathic sensations

• Spinothalamic sensations

• Dorsal column sensations

What is the maximum rate of discharge for cold receptors?

• 25°C

• 5°C

• 40°C

• 10-40°C

Which type of pain receptors are for burning heat?

• Nociceptive receptors

• Hot pain receptors

• Warm receptors

• Cold pain receptors

How are thermoreceptors stimulated?

• Mechanically

• Optically

• Electrically

• Chemically

Where do the axons of the second order neuron cross to the opposite side?

• Brain stem

• Thalamus

• Spinal cord

• Internal capsule

Which neuron ascends in the posterior limb of internal capsule to reach the somatic sensory area?

• Second order neuron

• First order neuron

• Fourth order neuron

• Third order neuron

What is the function of the lateral spinothalamic tract in the spinal cord?

• Passes through the spinothalamic tracts

• Ascend to form spinal lemniscus in the brain stem

• Cross to the opposite side in front of the central canal

• End around posteroventral neurons of the thalamus

Where can protopathic (crude) sensations be perceived?

• Thalamus

• Cortex

• Brain stem

• Spinal cord