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

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

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

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

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

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

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

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

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

Which tiny blood vessels allow the exchange of oxygen nutrients and waste between blood and body tissues?

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