Exam 45: Sensory Systems

Which statement about gustation is false?

Compared with humans, dogs have a much more acute sense of smell due to

A strong odor will activate

Which statement about diverse gustatory receptors is false?

In diurnal mammals, light not captured by photosensors is

Receptor potentials are generated in mechanoreceptors, such as those involved in touch, when

In the human olfactory epithelium, which event is not triggered by the binding of an odorant molecule to a receptor protein?

What occurs in the eye when mammals and birds focus on close objects?

Predict was would happen with respect to magnitude of receptor potential and rate at which action potentials are fired in a stretch receptor if the muscle of a crayfish was stretched to a great extent.

_______ receptors are triggered by the direct effect of hydrogen ions on sodium channels.

When an odorant molecule binds to its receptor on an olfactory receptor neuron, it activates a _______, which activates a second messenger.

The olfactory bulb is part of the

The receptor potential of a stretch receptor in the muscle of a crayfish

Motion sickness occurs when the visual system and the _______ system produce conflicting information.

Braille is a tactile system by which people who are visually impaired or blind can read by touching their fingertips to tiny raised dots traditionally placed on embossed paper.Which type of mechanoreceptor forms the basis for reading Braille text?

All of the following could cause anosmia, which is the loss of smell, except

Sensory receptor cells transduce physical or chemical stimuli

Refer to the figure. In the human olfactory system, odorant molecules in the environment bind to receptors on the

You are a physician and one of your patients comes in and tells you she has a cold and has lost her sense of smell.You explain that she has lost her sense of smell because

Meissner's corpuscles