Exam 27: Nervous, Sensory, and Locomotor Systems

A person who has blurred vision caused by a misshapen lens or cornea has ______.

Which of the following statements is true?

Please read the following paragraph and then answer the following question(s). The human eye is an incredible organ, capable of gathering light to focus on images near and far, in bright light or dim, and with quick adjustments between these extremes. However, as eyes age, the ability to focus closely gradually declines as the flexibility of the eye's lens decreases. Some eye problems, such as cataracts, are more likely to develop in people who are more exposed to natural sunlight. -Floaters are small particles that interfere with the transmission of light between the lens and the retina.As people age,more floaters accumulate in this space where we find the ______.

Thermoreceptors detect ______.

The cells that carry electric signals from one part of the body to another in the nervous system are _____.

Would you expect motor units to vary in size? If so,which of these structures would probably have the largest ones?

If aqueous humor is not drained,the likely result will be the development of ______.

What best helps a broken bone heal?

Realizing that you did not study as much as you needed to for this exam,you start to take the test.However,it is difficult to concentrate because your heart is racing,your stomach seems tied in a knot,you are breathing too quickly,and your mouth is dry.Most likely,you are experiencing the effects of the ______.

Standing out in center field,the baseball player watches the hitter's bat strike the ball and then,slightly later,hears the sound of the impact.What types of sensory receptors did the player just use?

Which,if any,of the following types of personal characteristics are not based in the cerebral cortex?

The figure below shows the structure of an arm bone.Which part of a bone contains stored fat?

In all types of chemoreceptors,receptor cells develop receptor potentials in response to ______.

A thick filament is made up of ______.

The movement of an action potential along a neuron is most like ______.

The figure shows the human eye.Which part of the eye gives the eye its color?

What part of the nervous system cushions the CNS and helps supply it with nutrients,hormones,and white blood cells?

Examine the structure of a muscle cell in the accompanying figure.Which one of the following statements about muscle structure is true?