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Question 1
What type of joint is the glenohumeral (shoulder) joint, and what movement does it allow?
Answer: It is a ball-and-socket (diarthrodial) joint that allows the greatest range of motion of any joint in the body, including flexion, extension, abduction, adduction, rotation, and circumduction.
Question 2
What is the name of the connective tissue that covers the outer surface of bone?
Answer: The periosteum is the dense connective tissue membrane that covers the outer surface of bone, providing attachment points for tendons and ligaments and playing a key role in bone repair.
Question 3
Which type of cartilage makes up the intervertebral discs?
Answer: Fibrocartilage makes up the intervertebral discs. It is the strongest and least flexible type of cartilage, designed to withstand compressive and tensile forces.
Question 4
What movement occurs at a joint when the angle between two bones decreases?
Answer: Flexion occurs when the angle between two bones at a joint decreases, typically moving a body part anteriorly (or inferiorly in the case of the knee).
Question 5
What is the term for the slightly movable joints connected by fibrocartilage, such as the pubic symphysis?
Answer: These are called amphiarthrotic (amphiarthrodial) joints. They allow limited movement and provide stability, as seen at the pubic symphysis and intervertebral joints.