Refer to the Following Graph of an Action Potential to Answer

question 19

Multiple Choice

Refer to the following graph of an action potential to answer the question. The minimum graded depolarisation needed to operate the voltage-gated sodium and potassium channels is indicated by the label ________.

• A) A
• B) B
• C) D
• D) E Disallow randomisation

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Definitions:

Tibia

The medial bone of the lower leg; commonly called the shin bone.

Synovial Joints

Flexible connections between bones that are lubricated by synovial fluid, allowing for a wide range of movements.

Fibrous Joint Capsule

A component of a joint surrounded by connective tissue that encloses the ends of bones in a joint, providing stability and strength.

Synovial Joints

Joints that are enclosed in a capsule of connective tissue and contain a lubricating synovial fluid, allowing for smooth movement.