Proper blood calcium levels are required for muscle contraction, nerve function, and other critical activities in the body

How does the body maintain homeostasis in response to decreased blood calcium levels? Discuss the main gland, hormone, and target of the hormone.
What will be an ideal response


In response to decreased blood calcium levels, the parathyroid glands release parathyroid hormone (PTH) which stimulates osteoclasts to liberate calcium from bone and into blood. PTH also encourages the digestive system to absorb more calcium and the kidneys to retain more calcium in blood.

Anatomy & Physiology

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Which is not correct regarding lymph nodes?

A. Connective tissue bands called tendineae divide nodes. B. They contain a network of lymphatic sinuses. C. They are covered by a connective tissue capsule. D. Lymphatic nodules produce lymphocytes. E. Each node has an outer cortex and inner medulla.

Anatomy & Physiology

Thalamic nuclei function to

A) relay sensory information to the cerebral nuclei and cerebral cortex. B) pass motor information to the descending tracts and to the spinal cord. C) relay information to the mamillary bodies. D) relay information to the occipital lobes. E) None of the answers are correct.

Anatomy & Physiology

Name the type of membrane channel that randomly opens and closes and is found in dendrites, cell bodies, and axons of all types of neurons

a) leakage channel b) ligand-gated channel c) mechanically gated channel d) voltage-gated channel e) pressure-sensitive channel

Anatomy & Physiology

Which of the following is not a lymphatic organ? Select one:

a. liver b. tonsils c. spleen d. appendix

Anatomy & Physiology