hila: The plural of hilum, and the hilum is the part of the lung where the bronchus and pulmonary artery enter and the pulmonary vein exits the lungs.

hinge joint: A joint that allows flexion and extension (bending and straightening) of joints like the elbow and the knee.

hyaline cartilage: This durable type of cartilage covers most of the bone surfaces in synovial joints. It’s also found in the nasal septum, rings of the trachea, and costal cartilages of the ribs, and it forms the epiphyseal plates of growing bones.

hyperkyphosis : An abnormal increase in the thoracic curvature.

hypertension: A condition in which blood pressure remains elevated over time. Having high blood pressure increases the risk of heart disease, stroke, and kidney disease.