What are tiny sacs of fluid near joints that help reduce friction called?

What are tiny sacs of fluid near joints that help reduce friction called?

• A. Bursae
• B. Tendons
• C. Ligaments
• D. Cartilage

Answer: (A)

The tiny sacs of fluid near joints that help reduce friction are called bursae. Bursae are small, fluid-filled sacs that act as cushions between bones and the tendons or muscles that surround them. Their primary function is to alleviate friction and provide a smooth gliding surface for movement during activities like walking or lifting. This is particularly important in areas like the shoulders, knees, and elbows where there is significant movement and potential for friction between bones and the overlying structures. Other options, such as tendons, ligaments, and cartilage, serve different purposes within the body. Tendons connect muscles to bones, enabling movement, while ligaments connect bones to other bones, providing stability to joints. Cartilage is a flexible tissue that protects joints by providing a cushion and reducing friction between bones. Each of these structures plays a vital role in the musculoskeletal system, but they do not function in the same capacity as bursae in reducing friction at joints.

The tiny sacs of fluid near joints that help reduce friction are called bursae. Bursae are small, fluid-filled sacs that act as cushions between bones and the tendons or muscles that surround them. Their primary function is to alleviate friction and provide a smooth gliding surface for movement during activities like walking or lifting. This is particularly important in areas like the shoulders, knees, and elbows where there is significant movement and potential for friction between bones and the overlying structures.

Other options, such as tendons, ligaments, and cartilage, serve different purposes within the body. Tendons connect muscles to bones, enabling movement, while ligaments connect bones to other bones, providing stability to joints. Cartilage is a flexible tissue that protects joints by providing a cushion and reducing friction between bones. Each of these structures plays a vital role in the musculoskeletal system, but they do not function in the same capacity as bursae in reducing friction at joints.