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Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Hormone and Hormone Antagonists Used for Neoplasia Hormone and Hormone Antagonists Used for Neoplasia
(a) Parathyroid hormone (PTH) (a) Parathyroid hormone (PTH)
Neural control of hormone release from the hypothalamus. Neural control of hormone release from the hypothalamus.
Thyroid hormone production—Relationship between pituitary and thyroid glands. Thyroid hormone ... Thyroid hormone production—Relationship between pituitary and thyroid glands. Thyroid hormone ...
Hormone Activity Hormone Activity
Control of Hormone Secretion Control of Hormone Secretion
Video: DNA Replication Factory and Protein

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