Neuro review 3/23

Name one component of voluntary movement:

With respect to the somatoropic organization of the spinal cord - LATERALLY located lower motor neurons are responsible for control of POSTURAL muscles

• True

• False

Nociceptors are the afferent limb of which type of reflex?

• Monosynaptic stretch reflex

• Autogenic inhibitory reflex

• Withdrawl reflex

Which of the following represents the efferent limb of the corneal reflex?

• CN 3

  (Oculomotor)

• CN 5 (Trigeminal)

• CN 2 (Optic)

• CN VII (Facial)

Write 2 things you know about spinal / brainstem reflexes

Why is the function of alpha-gamma co-activation?

Which of the following tracts originate in the cortex and form part of the dorsolateral mediating skilled limb movement?

• Rubrospinal tract

• Lateral corticospinal tract

• Anterior corticospinal tract

• Vestibulospinal tract

• Reticulospinal tract

Your patient suffered a small vascular lesion to the medulla at the mid-lateral level of the motor decussation of the lateral corticospinal tract. What deficits do you expect to see?

• Bilateral motor deficits in LE, with UE intact

• Motor deficits in the ipsilateral UE and contralateral LE

• Motor deficits in the contralateral UE and ipsilateral LE

• Bilateral motor deficits in the UE, with LE intact

Your patient suffers a lesion to the left corticonuclear tract (UMN) - select the deficits would you expect to see (select all that apply)

• Deviation of uvula to the left

• Deviation of uvula to the right

• Deviation of tongue to the right

• Deviation of tongue to the left

Your patient has a stroke in the left middle cerebral artery (impacting the precentral gyrus), what deficits would you expect to see?

• Ipsilateral weakness of the upper limb, face, and body

• Contralateral weakness of upper limb, face, and body

• Ipsilateral weakness of the lower limb

• Contralateral weakness of lower limb