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Tension headache
Tension headaches, which were recently renamed tension type headaches by the International Headache Society, are the most common type of headaches. The pain can radiate from the neck, back, eyes, or ... > more -
Visual field
The term visual field is often used in ophthalmology, where a visual field test is used to determine whether the visual field is affected by diseases that cause local scotoma or a more extensive loss ... > more -
Motor neuron
In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles ... > more -
Ketone bodies
Ketone bodies are three chemicals that are produced as by-products when fatty acids are broken down for energy. Contrary to what the name "bodies" may suggest, these are soluble compounds, not ... > more -
Human physiology
Human physiology is the science of the mechanical, physical, and biochemical functions of normal humans or human tissues or organs. The principal level of focus of physiology is at the level of ... > more -
Thyroid Disease
Hormone Disorders
Healthy Aging
Attention Deficit Disorder
Sports Medicine
Pregnancy and Childbirth
Hypothyroidism
Hypothyroidism is the disease state caused by insufficient production of thyroid hormone by the thyroid gland. There are several distinct causes for chronic hypothyroidism, the most common being ... > more -
Hormone Disorders
Healthy Aging
Attention Deficit Disorder
Diseases and Conditions
Sports Medicine
Thyroid Disease
Endocrinology
Endocrinology is a branch of medicine dealing with disorders of the endocrine system and its specific secretions called hormones. Hormones are molecules that act as signals from one type of cells to ... > more -
Salivary gland
The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. It also helps break down carbohydrates (with salivary amylase, formerly known as ptyalin) and ... > more
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