Joint Structure/Degree Of Movement

The correct answer is synovial. Synovial joints are characterized by the presence of a synovial cavity and are united by the dense irregular connective tissue of an articular capsule. This type of joint allows for a wide range of movement and is found in the majority of joints in the body, such as the knee, shoulder, and hip joints. Fibrous joints are united by fibrous connective tissue and allow for little to no movement, while cartilaginous joints are united by cartilage and allow for limited movement. Diarthrosis and amphiarthrosis are terms used to describe the degree of movement in a joint, rather than the type of joint itself.

Amphiarthrosis refers to a slightly movable joint. This type of joint allows limited movement and is characterized by the presence of fibrocartilage or hyaline cartilage. Examples of amphiarthrosis joints include the pubic symphysis and the intervertebral discs.

Bones are held together by fibrous connective tissue, which forms strong, fibrous joints called fibrous joints or fibrous articulations. Unlike synovial joints, fibrous joints do not have a synovial cavity, which is a fluid-filled space that allows for smooth movement between the bones. Instead, fibrous joints allow for limited or no movement, providing stability and strength to the skeletal system.

Cartilaginous joints are held together by cartilage and do not have a synovial cavity. These joints allow limited movement and provide stability to the connected bones. Examples of cartilaginous joints include the joints between the vertebrae in the spine and the pubic symphysis in the pelvis. Therefore, the correct answer is "Cartilaginous."

Synarthrosis is the correct answer because it refers to an immovable joint. In synarthrosis joints, the bones are tightly connected by fibrous tissue or cartilage, allowing for little to no movement. This type of joint provides stability and support to the body. In contrast, cartilaginous, synovial, amphiarthrosis, and diarthrosis joints all involve some degree of movement between the bones.

Diarthrosis is the correct answer because it refers to a freely movable joint. This type of joint allows for a wide range of movement due to the presence of a synovial cavity, articular cartilage, and a joint capsule. Examples of diarthrosis joints include the shoulder and hip joints.