An Individual with a "Double-Jointed" Thumb Can Pull It Back

question 29

Multiple Choice

An individual with a "double-jointed" thumb can pull it back towards the wrist much farther than normal. What does it mean to be "double-jointed?"

• A) articular cartilage at bone ends is replaced with hyaline cartilage
• B) the additional joint present doubles the range of motion
• C) greater than normal production of serous fluid lubricates the joint and extends it
• D) the joint capsules and ligaments are more stretchy and loose than normal

---

Definitions:

Reasoning

The process of figuring out the implications of particular beliefs.

Abstract Thinking

The ability to think about objects, principles, and ideas that are not physically present, a higher-level cognitive skill enabling conceptual understanding.

Intelligence

The mental capacity to learn from experience, solve problems, and use knowledge to adapt to new situations.

Intelligence

The ability to learn, understand, and apply knowledge, reason logically, plan effectively, solve problems, comprehend complex ideas, and adapt to new situations.