quiz 8 2023

Question 1

after viewing the transverse section of the spinal cord, choose the area, if damaged, would result in decreased conscious awareness of limb position and touch
- A
- B
- C
- D

Answer 1

A

Question 2

after viewing the transverse section of the spinal cord, choose the area, that contains the fibers that have the slowest speed of transmission
- A
- B
- C
- D

Answer 2

D

Question 3

receptor that detects muscle stretch

Answer 3

muscle spindle

Question 4

a dog paw is sat on the dorsal side. what is being assessed in the patient?

Answer 4

conscious proprioception

Question 5

where would fibers containing somatic LMN axons predominantly be found?

Answer 5

ventral root

Question 6

Which tract contains fibers that transmit subconsious proprioception?

Answer 6

spinocerebellar tract

Question 7

A dog with a head tilt, ataxia that results in listing to one side, leaning and bumping into objects on the same side most likely has a lesion associated with which of the following CNS structures?

Answer 7

vestibular apparatus

Question 8

Choose the potential outcomes of a transverse lesion of the spinal cord that affects all ascending and descending tracts as well as the spinal gray matter at the level of C6-T2.
- Spastic paresis of the thoracic limbs
- Flaccid paresis/paralysis of the thoracic limbs
- Spastic paresis of the pelvic limbs
- Flaccid paresis/paralysis of the pelvic limbs
- UMN signs in the thoracic limbs
- LMN signs in the thoracic limbs
- UMN signs in the pelvic limb
- LMU signs in the pelvic limb
- lack of spinal reflexes in the thoracic limbs
- loss of withdrawal in the pelvic limb
- withdrawal and crossed extensor response in the pelvic limb
- conscious perception of pain when pelvic limb is pinched
- no conscious perception of pain when pelvic limb is pinched

Answer 8

• Flaccid paresis/paralysis of the thoracic limbs
• Spastic paresis of the pelvic limbs
• LMN signs in the thoracic limbs
• UMN signs in the pelvic limb
• lack of spinal reflexes in the thoracic limbs
• withdrawal and crossed extensor response in the pelvic limb
• no conscious perception of pain when pelvic limb is pinched

Question 9

which of the following fiber types would be the last one to be affected by spinal cord compression?

Answer 9

nociception
pain

Question 10

which cell is the first-order neuron (primary afferent neuron) of the visual pathway?

Answer 10

bipolar cell

Question 11

Which sensory receptor structure in the inner ear senses static equilibrium such as is the patient standing up or lying down on its side?

Answer 11

macula saccule