HBS 2.1.7 reflexes

Which (generally speaking) requires less neurons?

• reflex

• reaction

For a child, which develops first?

• good reflexes

• fast reaction time

Which takes conscious effort and cognitive skill?

• reflexes

• reactions

T/F: For the patellar reflex, sensory neurons send signal to the brain.

• True

• False

T/F: During the patellar reflex, there is one synapse in the reflex arc that allows for quadriceps to contract.

• True

• False

In the patellar reflex arc, which neurons are involved in quadriceps contracting?

• motor neuron

• interneuron

• sensory neuron

In the reflex arc, this neuron inhibits signal to the hamstring:

• motor neuron

• interneuron

• sensory neuron

T/F: During the reflex arc of the patella, both the quadriceps and hamstrings are stimulated to contract.

• True

• False

As someone ages, what happens to their neurons?

• more are created

• cell bodies start to die

• the myelinated parts degenerate

• more white matter forms

As someone ages (60 plus), what do you expect to happen to their reflexes?

• they get faster

• they get slower

• they stay the same