Quiz for:
Understanding Spinal Cord and Reflexes Mod 1 Part 2

Question 1

Which corticospinal tract involves decussation at the medullary pyramids?

Question 2

Which brain structures are involved in indirect pathways?

Question 3

Which neurons have their soma located in the ventral gray horn of the spinal cord?

Question 4

Where do lower motor neuron axons exit the spinal cord?

Question 5

Where do upper motor neurons originate?

Question 6

What is the primary sensory receptor involved in the stretch reflex?

Question 7

Which tract is described by direct connection from cortex to lower motor neuron?

Question 8

What is the function of descending motor tracts?

Question 9

What is the role of the Golgi Tendon Organ?

Question 10

Which reflex involves reciprocal inhibition, preventing antagonist muscle contraction?

Question 11

What is the purpose of the crossed extensor reflex?

Question 12

What percentage of corticospinal fibers decussate at the medullary pyramids?

Question 13

Which reflex is the fastest due to having a single synapse?

Question 14

Which neurotransmitter is often involved with inhibitory interneurons in a polysynaptic reflex?

Question 15

Which tract involves cranial nerve nuclei?