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Sensory System and Ascending Tracts Quiz

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Sensory System and Ascending Tracts Quiz

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Questions and Answers

What is the main function of the sensory system?

To transmit information to the PNS

To detect electromagnetic energy

To receive information about the self and environment (correct)

To convert energy into biochemical energy

What are receptors in the sensory system?

Axons extending into the white matter of the spinal cord

Biological transducers converting energy into electrochemical energy (correct)

Nerve endings detecting energy from the environment

Specialized groups of cells transmitting information to the CNS

Where does the action potential transmitted by the sensory neuron travel to?

Anterior columns

White matter of the spinal cord

Dorsal root ganglion (correct)

Central gray matter column

What do the dorsal columns of the white matter in the spinal cord exclusively contain?

Ascending tracts transmitting information from the PNS towards the brain Signup and view all the answers

Where do the central processes of the sensory neuron extend to after the dorsal root ganglion?

Dorsal horn of the gray matter in the spinal cord Signup and view all the answers

Where are Meissner's corpuscles primarily responsible for detecting touch located?

In the skin of the fingertips and lips Signup and view all the answers

Which type of receptors are Golgi tendon organs and what is their function?

Proprioceptors; they monitor tension in tendons Signup and view all the answers

Where do the central processes of the 1o sensory neuron extend to after the dorsal root ganglion?

Into the ipsilateral dorsal column of the spinal cord Signup and view all the answers

How are the dorsal column tracts organized in the spinal cord?

Topographically, with fibers from inferiormost levels arranged most medially Signup and view all the answers

Where is the fasciculus cuneatus primarily located in the spinal cord?

In relatively more superior sections of the spinal cord Signup and view all the answers