Question

Think of the movement that occurs while someone rides a bike. With a partner, discuss the types of joints that Koa most likely uses in a BMX ride. Can you name those joints?

Answer 1

While riding a BMX bike, Koa uses movable joints such as ball-and-socket, hin ge, saddle, condyloid, and plane joints to perform the complex actions required for bicycle riding.

Step-by-step explanation:

When riding a BMX bike, Koa most likely uses several types of movable joints which are necessary for the complex movements involved in BMX riding. Some of the main joints Koa would use include:

• The ball-and-socket joints, such as the hip and shoulder joints, allow for a wide range of movement including rotation, which is particularly useful for balancing and steering the bike.
• The hi nge joints, like those found in the knees and elbows, enable bending and straightening motions critical for pedaling and handling the bike.
• The saddle joint in the thumb and the condyloid joints in the fingers allow for grip and control of the handlebars.
• The plane or gliding joints in the wrists and ankles offer the flexibility needed to maneuver the bike and maintain stability.

All these joints play a crucial role in the skeletal movement, allowing the body to perform the intricate actions required for bicycle riding. They are supported and stabilized by structures such as cartilage, which reduces friction, and ligaments, which help hold bones in place across the joint.

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