Type the best answer into the text box below: If you put your hands under a table and try to lift up, but there is no movement of the table and no change in your arm muscles, those muscles are performing a(n) [blank] contraction or action. 

Use the pull-down menus to insert the best terms that make these sentences true: When a person steps on a nail or a bee, the leg stimulated by the painful stimulus must [blank1] and the other leg must [blank2] so that the person doesn’t fall down.  All of this is an example of [blank3].

Type the best answer into the text box below: [blank] is the conscious understanding of a stimulus which results from processing in the brain.

Several different kinds of sensors are listed below.  From that list, pick the TWO that could possibly be triggered if a person drinks a significant amount of 370 Celsius pure water (e.g., 5 cups or 40 ounces) in one hour.

When skeletal muscles are not stressed regularly (maybe due to a cast placed on a limb to repair a broken bone), they will decrease in size and force-generating capacity due to down-regulation of thick and thin myofilaments.  This process is technically referred to as:  Type the best answer into the text box below:

Study this image carefully: The reflex shown in this image is best described as a:

Simon cannot report the number shown in this image: Which of the following terms best describes his vision?

Opposite faces of a rectangular aluminum bar measuring 2mm x 4mm x 5mm along its dimensions are connected to a circuit. What is the smallest resistance this bar can provide to the circuit? The resistivity of aluminum is 2.75 x 10–8 Ωm and it has 1.8×1028 conductive electrons/m3.

A current loop (not shown below) is oriented so that it lies in the xz plane and carries a clockwise current when viewed from above (clockwise about the y axis). The current loop is placed and held with its center at each of the locations P shown below. In which of the following pictures will the loop experience a counterclockwise rotation about the z axis when released, due to the torque on it by an external magnetic field?

These extensions of the sarcolemma allow for an action potential to travel deep into a skeletal muscle cell. Type the best answer into the text box below: