As Part of a Promotion, Both You and Your Roommate

question 16

Multiple Choice

As part of a promotion, both you and your roommate are given free cellular phones from a batch of 13 phones. Unknown to you, four of the phones are faulty and do not work. Find the probability that one of the two phones is faulty.

• A) .462
• B) .538
• C) .231
• D) .077

Distinguish between various sterilization methods and the maintenance of sterility during surgical procedures.

Understand the principles of surgical asepsis and the techniques used to maintain a sterile environment.

Identify the roles and uses of various surgical instruments and equipment.

Recognize the importance of medical asepsis and its application in reducing microbe transmission.

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Definitions:

Nerve Impulse Conduction

The process by which nerve cells (neurons) transmit electrical signals along their axons to communicate with other neurons or muscles.

Myelin Sheath

A fatty layer that surrounds the axons of some neurons, providing electrical insulation and increasing the speed at which nerve impulses are conducted.

Saltatory Conduction

The process by which nerve impulses jump from one Ranvier node to another, speeding up the transmission of electrical signals along myelinated neurons.

Axon Hillock

The cone-shaped region of an axon in a neuron where the axon originates from the cell body.