Throughout Life,axons and Dendrites Continue to Grow,and Tiny Projections on Dendrites,called

question 366

Multiple Choice

Throughout life,axons and dendrites continue to grow,and tiny projections on dendrites,called _______________ increase in size and number.

• A)spines
• B)axon terminals
• C)precursor cells
• D)stem cells

---

Definitions:

Treadle Valve

A foot-operated valve that controls the flow of air in a pneumatic system, often used in braking systems of heavy vehicles.

Inversion Valve

A normally open air brake valve used for emergency applications of tractor brakes for a one-time stop during a total system failure. Hold-off air is dumped in relation to application pressure so that spring chamber force can effect emergency service braking. Incorporated in some modulating valves.

Tractor Protection Valve

A safety valve in commercial vehicles that prevents air loss in the tractor in the event of a trailer breakaway or air line failure.

FMVSS-121 Compliant

FMVSS-121 compliant means adhering to the Federal Motor Vehicle Safety Standard 121, relating to air brake systems in heavy vehicles.