quiz 8 2023

Question 1

receptor that detects muscle stretch

Answer 1

muscle spindle

Question 2

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

Answer 2

conscious proprioception

Question 3

where would fibers containing somatic LMN axons predominantly be found?

Answer 3

ventral root

Question 4

Which tract contains fibers that transmit subconsious proprioception?

Answer 4

spinocerebellar tract

Question 5

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 5

vestibular apparatus

Question 6

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 6

• 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 7

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

Answer 7

nociception
pain

Question 8

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

Answer 8

bipolar cell

Question 9

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 9

macula saccule