Neuro: Spinal Cord Tracts

Question 1

Name the spinal cord tract:

pain and temperature sensation

Answer 1

the Spinothalamic tract

Question 2

Name the spinal cord tract:

pressure, touch, vibration, and proprioception

Answer 2

Dorsal column-medial lemniscus (DCML)

Question 3

Name the spinal cord tract:

voluntary movement

Answer 3

Lateral corticospinal

Question 4

What does the Spinothalamic tract carry?

Answer 4

pain and temperature sensation

Question 5

What does the Dorsal column-medial lemniscus (DCML) tract carry?

Answer 5

pressure, touch, vibration, and proprioception

Question 6

What does the Lateral corticospinal tract carry?

Answer 6

voluntary movement

Question 7

What does the Hypothalamic tract carry?

Answer 7

sympathetic input to the face

Question 8

Name the spinal cord tract:

sympathetic input to the face

Answer 8

Hypothalamospinal tract

Question 9

Where does the first-order neuron for the Dorsal column-medial lemniscus (DCML) tract travel to and from?

Answer 9

Peripheral nerves to medulla via dorsal column

Question 10

Where does the first-order neuron for the Spinothalamic tract travel to and from?

Answer 10

Peripheral nerves to posterior horn

Question 11

Where does the first-order neuron for the Lateral corticospinal tract travel to and synapse upon?

Answer 11

Pyramidal neurons in cortex descend, cross over in medullary pyramids, and synapse on the anterior motor
horn of the cord (upper motor neuron)

Question 12

Where is the first-order neuron for the Hypothalamospinal tract located? Where does it synapse?

Answer 12

Arises from the hypothalamus and synapses on the lateral

horn at T1

Question 13

Where does the second-order neuron for the Dorsal column-medial lemniscus (DCML) tract arise, travel, and synapse?

Answer 13

Arises from medulla, crosses over, and ascends via the

medial lemniscus to thalamus

Question 14

Where does the second-order neuron for the Spinothalamic tract travel?

Answer 14

Arises from posterior horn, immediately crosses over in anterior white commissure, and ascends via the spinothalamic tract to the thalamus

Question 15

Where does the second-order neuron for the Lateral corticospinal tract arise and synapse?

Answer 15

Arises from the anterior motor horn and synapses on muscle (lower motor neuron)

Question 16

Where does the second-order neuron for the Hypothalamospinal tract arise and synapse?

Answer 16

Arises from lateral horn at T1 and synapses on the superior cervical ganglion (sympathetic)

Question 17

Where does the third-order neuron for the Dorsal column-medial lemniscus (DCML) tract arise and travel to?

Answer 17

Thalamus to cortex

Question 18

Where does the third-order neuron for the Spinothalamic tract arise and travel to?

Answer 18

Thalamus to cortex

Question 19

Where does the third-order neuron for the Lateral corticospinal tract arise and travel to?

Answer 19

there isn’t a 3rd order neuron for the Lateral corticospinal tract!

Question 20

Where does the third-order neuron for the Hypothalamospinal tract arise and travel to?

Answer 20

Superior cervical ganglion to eyelids, pupil, and skin of face

Question 21

Name the spinal cord tract:

cell body is in the dorsal root ganglion

Answer 21

Spinothalamic AND Dorsal column-medial lemniscus (DCML)

Question 22

Name the spinal cord tract:

peripheral nerves –> posterior horn –> decussate at anterior white commissure –> ascend –> thalamus –> cortex

Answer 22

Spinothalamic tract

Question 23

Name the spinal cord tract:

peripheral nerves –> dorsal column –> decussate at medulla –> medial lemniscus –> ascend –> thalamus –> cortex

Answer 23

Dorsal column-medial lemniscus (DCML)

Question 24

Name the spinal cord tract:
pyramidal neurons of the cortex –> descend –> decussate at medullary pyramids –> anterior motor horn (upper motor neuron) –> muscle (lower motor neuron)

Answer 24

Lateral corticospinal tract

Question 25

Name the spinal cord tract:

hypothalamus –> descend –> lateral horn at T1 –> superior cervical ganglion (sympathetic) –> face

Answer 25

Hypothalamospinal tract

Question 26

Where does the Hypothalamospinal tract fibers decussate?

Answer 26

it doesn’t (lesion is ipsilateral)