Two Technicians Are Discussing U

question 37

Multiple Choice

Two technicians are discussing U.S. thread sizes. Technician A says fastener threads can be fine or coarse. Technician B says that fine threads provide greater holding strength in soft materials. Who is correct?

• A) A only
• B) B only
• C) Both A and B
• D) Neither A nor B

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Definitions:

Tegmentum

The tegmentum is a part of the brainstem involved in movement and arousal; it helps regulate many basic functions of life including awareness, and the modulation of pain.

Glial Cells

In the nervous systems, both central and peripheral, there exist cells that are not neurons but serve to protect and support neuronal cells.

Neurons

The basic working units of the brain and nervous system, cells that transmit information via electrical and chemical signals.

Metencephalon

A region of the brainstem that includes the pons and cerebellum, involved in motor control, sensory analysis, and consciousness.