Final answer:
Calcipenia refers to a deficiency of calcium in the body, which can have adverse effects on various body systems including circulation, muscles, nerves, and bones.
Step-by-step explanation:
Calcipenia refers to a deficiency of calcium in the body. Hypocalcemia, or abnormally low levels of calcium, can have adverse effects on various body systems, including circulation, muscles, nerves, and bones. Without enough calcium, blood may have difficulty coagulating, muscles may have trouble contracting, nerves may not function properly, and bones may become brittle.