Exam 27: Nervous,Sensory,and Locomotor Systems

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

The organ of Corti is in the ________.

Thermoreceptors detect ________.

Functionally,what is the muscle fiber's fundamental unit of contraction?

If floaters are small particles that interfere with the transmission of light between the lens and the retina,they must be located in the ________.

When light levels suddenly increase,our eyes adjust quickly by reducing the size of the ________.

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?

The two major divisions of the nervous system are the ________.

You start to trip,but you keep your balance and don't fall.Which of the following brain regions is responsible for the rapid coordination of muscle activity that kept you from falling?

Muscles are connected to bones by ________.

The minimum change in a membrane's voltage that must occur to trigger an action potential is called the ________.

Which of these carry incoming messages toward the cell body of a neuron?

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

What best helps a broken bone heal?

Multiple sclerosis involves primarily ________.

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

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

If you lay your forearm along the table,you can rotate it so that your hand changes from a palm-down to a palm-up position.This is possible because your radius and ulna join at a ________ joint.

Outnumbering neurons by up to 50 to 1,which cells protect,insulate,and reinforce neurons?

The receptor potential is the ________.