Explain How Calcitonin and Parathyroid Hormone Work Together to Regulate

question 109

Essay

Explain how calcitonin and parathyroid hormone work together to regulate blood calcium levels. What effect would each hormone have on bone density? Explain your answer.

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Definitions:

Nerve Plexus

A network of intersecting nerves or nerve fibers.

Spinal Nerves

Nerves that emerge from the spinal cord, facilitating communication between the body and the brain.

Dorsal and Ventral Roots

The two types of nerve roots; dorsal roots carry sensory information to the spinal cord, while ventral roots carry motor information from the spinal cord to the muscles.

Thymus Gland

A lymphoid organ situated in the neck of vertebrates that produces T-cells for the immune system.