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Sensory System Examination Overview

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Questions and Answers

What type of sensation is transmitted by the dorsal column pathway?

Pain and temperature

Tactile discrimination and stereognosis

Crude touch and tickling

Fine touch and proprioception (correct)

What is the central pathway for tactile discrimination?

Lateral spinothalamic tract

Dorsal root ganglia

Gracile and cuneate tract (dorsal column) (correct)

Ventral spinothalamic tract

Which afferent nerves are involved in crude touch sensation?

Aδ fibers (correct)

C fibers

Aᵦ fibers

B fibers

Which sensory system pathway transmits sexual sensation?

Ventral spinothalamic tract Signup and view all the answers

What is the threshold distance for 2 point discrimination on the palm of the hand?

5mm Signup and view all the answers

What type of sensation is transmitted by the ventral spinothalamic tract?

Pain Signup and view all the answers

What is the function of Aᵦ fibers in the sensory system?

Transmit fine touch sensation Signup and view all the answers

Which ascending pathway transmits proprioceptive sensation from the same side up to the medulla oblongata before crossing to the opposite side?

Dorsal column (gracile and cuneate) Signup and view all the answers

What is the primary function of the dorsal column pathway in the sensory system?

Transmit fine touch sensation Signup and view all the answers

What is the threshold distance for 2 point discrimination at the fingertips?

2.5 Signup and view all the answers