Exam 50: Sensory and Motor Mechanisms

Experiments with genetically altered mice showed that the mice would consume abnormally high amounts of bitter-tasting compounds in water after their ________.

In a mammalian visual system, visual information is integrated at ________. I. the lens II. the retina III. the optic nerve IV. the visual cortex

Sensory transduction of light in the vertebrate retina is accomplished by ________.

The motor unit in vertebrate skeletal muscle refers to ________.

Compared to viewing a distant object, a human viewing an object held within five centimetres of the eye requires a lens that ________.

A patient is hospitalised with muscle spasms caused by failure of back muscles to relax after contraction. Which of the following would be most likely to help?

How could you genetically modify an animal so that it would distinguish more shades of green?

When an action potential from a motor neuron arrives at the neuromuscular junction (NMJ), a series of events occurs that leads to muscle contraction. Which of the following events will occur last (that is, after all of the others listed below)?

Which sensory distinction is not encoded by a difference in neuron identity?

In the odorant cells of mammals, specific odorants are detected by binding to ________.

Although some sharks close their eyes just before they bite, their bites are on target. Researchers have noted that sharks often misdirect their bites at metal objects and that they can find batteries buried under sand. This evidence suggests that sharks keep track of their prey during the split second before they bite in the same way that a ________.

The structure of the mammalian middle ear is adapted to convert ________.

Artificial electrical stimulation of a human's capsaicin-sensitive neurons would likely produce the sensation of ________.

Which of the following sensory receptors is incorrectly paired with its category?

Action potentials in the heart move from one contractile cell to the next via ________.

Which of the following sensory receptors is correctly paired with its category?

The leg muscles of a sprinter would differ from a marathon runner in that ________.

Tastes and smells are distinct kinds of environmental information where ________.

Elephants hear sounds that are too low for humans to hear. This sensitivity is primarily due to the differences in the ________.

Methyl jasmonate is a plant-derived compound that blocks mosquito carbon dioxide receptors. What would you expect to happen if you applied this compound to your skin and then exposed yourself to a swarm of mosquitos?