REM Sleep Is Paradoxical Because

question 68

Multiple Choice

REM sleep is paradoxical because:

• A)the brain is active,but the major skeletal muscles appear to be paralyzed.
• B)the skeletal muscles remain active,but the brain is inactive.
• C)the brain is less active than it is during other sleep stages.
• D)both the brain and the body are inactive.

---

Definitions:

Pinion

A small gear that engages with a larger gear or rack, often used to convert rotational motion to linear motion or vice versa.

Mechanical Advantage

The factor by which a mechanism multiplies the force put into it, enabling the lifting or moving of heavier loads with less effort.

Pitch Diameters

The effective diameter of a screw thread, halfway between the crests and roots, used in measuring and specifying thread sizes.

Diametral Pitches

Diametral pitches refer to the number of teeth per inch of the diameter of a gear, which determines the size of the teeth and the pitch of the gear.