Exam 43: Sensory Systems

Since the optic nerve must pass through the retinal layer,we all have a blind spot devoid of light receptors.This normally goes unnoticed,since the brain attempts to compensate for missing sensory information by filling it in based on surrounding patterns.Which step of the sensory pathway is represented by perceptual filling-in of the physiological blind spot?

Which of the following statements about the lateral line system is NOT correct?

Which includes all of the components that make up the Organ of Corti?

Which of the following statements regarding vision is NOT true?

What is the primary difference in how touch sensation and hearing sensation are conveyed?

Choose the receptor that is NOT correctly matched with its function.

What are the receptors of sharks that can detect disturbances in electrical fields called?

Which is NOT a part of the vertebrate eye?

In the vertebrate eye,what structure controls the amount of light that reaches the retina?

Honeybees can detect a variety of odorants through olfactory receptors on their antennae.You genetically engineer a receptor to be gated by the explosive chemical TNT,and use a transgene to express the receptor in honeybee olfactory neurons.What would this provide to the bee?

If genetically engineered bees could express a receptor for TNT in their olfactory neurons,how could the transgenic bees be useful for detecting explosives?

Which of the following statements would explains the importance of Pax gene families in animals?

What does the middle ear consist of?

What are the categories of taste sensation?

The statoliths of a lobster are replaced with iron filings,and a strong magnetic field is produced at the top of its tank.How will the lobster respond?

Which is NOT a stimulus that exteroceptors can sense?

The human retina is composed of three cell layers.Which represents the correct order of these layers,starting with the layer that is closest to the iris?

In the vertebrate eye,what structure is light focused onto?

Each type of cone cell is stimulated by a different color of light.In humans,a colorful scene is perceived as a combination of signals from three cone types.Which colors correspond to these three cones? I-Red II-Yellow III-Orange IV-Blue V-Green VI-Purple

Pit vipers are the only known vertebrates with an ability to detect a certain type of stimulus.What can these snakes sense?