Session 9/15 PNS

Your nerves can send a bigger action potential to receptors to respond to a strong stimulus.

• True

• False

Tonic receptors are slowly adapting.

• True

• False

Utricles & Saccules are structures of the ear that pick up on spinning sensations of the head.

• True

• False

Cones pick up on the color of light.

• True

• False

Olfactory neurons are the only neurons of the CNS that can be renewed.

• True

• False

When would the rods and cones of the eye be turned on?

• in the dark

• in the light

• they are always on

• only in dim light

What is the rocky layer of the vestibular system called?

• Papilia

• Otolith

• Hair cells

• Semicircular Canals

Which of the following sensations has a separate receptor cell to pick up on stimuli?

• None of these

• Tactile

• Olfaction

• Vision

If the skin is more sensitive in a certain area then what must be true of the receptive fields?

• All receptive fields are the same size

• They are larger

• They are smaller

Choose all on the following drug classes that block pain signals from the nociceptors.

• NASIDs (anti inflammatory drugs)

• numbing medications

• opioids

• Beta-blockers