Exam 27: Nervous, Sensory, and Locomotor Systems

In contrast to action potentials,receptor potentials ________.

Muscles are connected to bones by ________.

Which,if any,of the following types of personal characteristics are based in the cerebral cortex?

When you hear,the ________ vibrates. I)eardrum II)hammer III)stirrup

Which of the following was supported by the terrible accident that happened to Phineas Gage?

Please read the following paragraph and then answer the following questions. Huntington's disease is a genetic disorder in which a mutation causes the production of a protein, which damages cells in the brain. Symptoms typically begin with changes in personality, attention, and reasoning. Uncoordinated and uncontrolled movements develop, such that physical abilities become limited. Cognitive problems worsen into dementia. There is currently no cure for Huntington's disease. -Scientists hypothesize that the abnormal protein stops vesicles from moving through the cytoskeleton.Predict the effect of this protein on the nervous system.

Which of the following effects could result from activation of the sympathetic nervous system?

A baseball player leaping for a baseball and a cricket jumping away from a frog are both using ________. I)sensory receptors II)the central nervous system III)a muscle system

Which of the following neurotransmitters is associated with sleep,mood,attention,and learning?

The receptor potential is the ________.

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 ________.

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

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

Some adults with attention deficit hyperactivity disorder (ADHD)have abnormally low activity of the neurotransmitter involved in pleasure,attention,memory,sleep,movement,and learning,which increases their risk of drug abuse.Which drug are they most likely to abuse?

Which one of the following correctly pairs the structure with its major function(s)?

A person whose eyeball is shorter than normal suffers from ________.

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

Scenario Questions Please read the following paragraph and then answer the following questions. 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, eyes can develop problems, such as floaters, which are small particles that interfere with the transmission of light between the lens and the retina, and bloodshot eyes, which occur when irritants such as dust or smoke get in the eye. -If floaters are small particles that interfere with the transmission of light between the lens and the retina,they must be located in the ________.

What evolutionary adaptation allows elephants to migrate,meet,and mate over great distances?

Please read the following paragraph and then answer the following questions. Amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, is a fatal disorder characterized by muscle weakness. Stumbling when walking or difficulty with using a hand is a typical early symptom. Individuals with ALS lose the ability to consciously control movement, though cognitive and sensory functions generally remain unimpaired. There is currently no cure for ALS. -In ALS,sensory input and integration are unaffected,and muscle cells still respond to neurotransmitters when they are present.Which structure would you recommend scientists to study to find a cure for ALS?