Which membrane surrounds the lungs and reduces friction during breathing movements?

Which gas exchange membrane structure in the lungs maximizes surface area for efficient breathing?

Which membrane surrounds the heart and protects it within the chest cavity?

Which soft tissue found inside bones is responsible for producing new blood cells?

Which protective membranes cover and protect the brain and spinal cord?

Which flexible connective tissue cushions joints and is found in structures like the ear and nose?

Which fluid cushions and protects the brain and spinal cord from mechanical shock?

Which chamber of the heart pumps oxygenated blood out to the rest of the body?

Which fluid lubricates joints and reduces friction between bones during movement?

Which chamber of the heart receives deoxygenated blood from the body before sending it to the lungs?

Which fluid in the lymphatic system helps transport white blood cells and remove waste from tissues?