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NPTE Neuromuscular and Nervous System > Ascending and Descening Tracks > Flashcards

Ascending and Descening Tracks Flashcards

1
Q

What type of information is relayed by ascending tracts?

A

Sensory information

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2
Q

What type of information is relayed by descending tracts?

A

Motor information

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3
Q

What information is carried by the fasiculus cuneatus tract? Is this tract ascending or descending?

A

Ascending tract

Sensory tract for neck, trunk and UE proprioception, vibration, two point discrimination and graphesthesia

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4
Q

What information is carried by the fasiculus gracilis tract? Is this tract ascending or descending?

A

Ascending tract

Sensory tract for trunk and LE proprioception, vibration, two point discrimination and graphesthesia

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5
Q

What information is carried by the dorsal spinocerebellar tract? Is this tract ascending or descending?

A

Ascending tract

Ipsilateral subconscious proprioception, tension in muscles, joint sense, and posture of the trunk and LEs

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6
Q

What information is carried by the ventral spinocerebellar tract? Is this tract ascending or descending?

A

Ascending tract

Ipsilateral subconscious proprioception, tension in muscles, joint sense, and posture of the trunk, UEs and LEs

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7
Q

What information is carried by the spino-olivary tract? Is this tract ascending or descending?

A

Ascending tract

Relayed information from cutaneous and proprioceptive organs

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8
Q

What information is carried by the spinoreticular tract? Is this tract ascending or descending?

A

Ascending tract

Afferent pathway for reticular formation that influences levels of consciousness

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9
Q

What information is carried by the spinotectal tract? Is this tract ascending or descending?

A

Ascending tract

Afferent information for spinovisual reflexes and assists with movement of the eyes and head towards a stimulus

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10
Q

What information is carried by the anterior spinothalamic tract? Is this tract ascending or descending?

A

Ascending tract

Light touch and pressure

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11
Q

What information is carried by the lateral spinothalamic tract? Is this tract ascending or descending?

A

Ascending tract

Pain and temperature

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12
Q

What is the largest descending tract?

A

Corticospinal tract

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13
Q

What information is carried by the anterior corticospinal tract? Is this tract ascending or descending?

A

Descending tract

Ipsilateral voluntary, discrete and skilled movement

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14
Q

What information is carried by the lateral corticospinal tract? Is this tract ascending or descending?

A

Descending tract

Contralateral voluntary fine movement

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15
Q

What information is carried by the reticulospinal tract? Is this tract ascending or descending?

A

Descending tract

Facilitation and inhibition of voluntary and reflex activity through the influence on alpha and gamma motor neurons

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16
Q

What information is carried by the rubrospinal tract? Is this tract ascending or descending?

A

Descending tract

Motor input of gross postural tone
Facilitating activity of flexor muscles
Inhibiting the activity of extensor muscles

17
Q

What information is carried by the tectospinal tract? Is this tract ascending or descending?

A

Descending tract

Contralateral postural muscle tone associated with auditory/visual stimuli

18
Q

What information is carried by the vestibulospinal tract? Is this tract ascending or descending?

A

Descending tract

Ipsilateral gross postural adjustments subsequent to head movements
Facilitating activity of the extensor muscles
Inhibiting activity of the flexor muscles

19
Q

Which of the descending tracts are pyramidal?

A

Anterior and lateral corticospinal tracts

20
Q

Which of the descending tracts are extrapyramidal?

A

Reticulospinal tract
Rubrospinal tract
Tectospinal tract
Vestibulospinal tract

21
Q

What happens as a result of damage to the corticospinal (pyramidal) tracts? (3)

A

Positive Babinski sign
Absent superficial abdominal reflexes and cremasteric reflex
Loss of fine motor or skilled voluntary movement

22
Q

What happens as a result of damage to the extrapyramidal tracts? (4)

A

Significant paralysis
Hypertonicity
Exaggerated deep tendon reflexes
Clasp-knife reaction

NPTE Neuromuscular and Nervous System (26 decks)

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