The endocrine system,nervous system,muscular and skeletal systems,cardiovascular systems,urinary system,and digestive system are all involved in calcium homeostasis.

Question

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The endocrine system produces hormones that regulate calcium content of the bones. The bones store calcium needed for muscle contraction and nerve impulse conduction. The red bone marrow stores calcium for blood clotting and keeps blood moving in the body delivering hormones to the various locations. The urinary system activates vitamin D needed for calcium absorption. The digestive system absorbs calcium and vitamin D from food.

The Endocrine System,nervous System,muscular and Skeletal Systems,cardiovascular Systems,urinary System,and Digestive