Week 11 - Ascending and Descending Tracts

Question 1

Dorsal column carries all the general sensations except

pain
vibration
pressure
two-point discrimination

Answer 1

pain

Question 2

Lower motor neurons are located in the

Answer 2

brainstem

Question 3

Dorsal column carries sensations to the

Answer 3

primary sensory cortex

Question 4

All are features of upper motor neuron lesion except
spasticity
atrophy
hpertonia
hyperreflexia

Answer 4

Atrophy

Question 5

Match the tracts with their functions.

1. motor tract controls the motor cranial nerve nuclei
2. carries pressure, vibration, two-point discrimination and conscious proprioception
3. carries sensation of pain and temperature
4. motor tract that controls the ventral horn motor cells of the spinal cord

Answer 5

1. corticobulbar tract,
2. dorsal column
3. spinothalamic tract
4. corticospinal tract

Question 6

True or False

1. The dorsal column fibers cross at the level of pons.
2. Dorsal column carries the sensation of pain and temperature.
3. The corticospinal tract crrosses at the level of caudal medulla.
4. The coticospinal tract controls the ventral horn motor cells of the spinal cord

Answer 6

1. False
2. False
   3, True
3. True

Question 7

All are sensory tracts except…

spinothalamic tract
lateral corticospinal tract
spinocerebellar tract
dorsal column

Answer 7

lateral corticospinal tract

Question 8

Identify the sensations carried by the spinothalamic tract.

Answer 8

pain and temperature

Question 9

All are features of lower motor neuron lesion except

Answer 9

spasticity

Question 10

True or False

1, Lateral corticospinal tract crosses at the level of medulla

2. , dorsal column crosses at the level of mid brain
3. All the general sensations goes to the thalamus before reaching the cortex.
4. spinothalamic tract crosses at the level of spinal cord.

Answer 10

1. True
2. False
3. True
4. True