Osmotic pressure can be described as the pressure of a water solution of salts exerted in either direction against a semipermeable membrane. This pressure is caused by differences between the concentrations of dissolved salts within the body and those outside, in the sea.â¦
Thyroid gland: A gland that makes and stores hormones that help regulate the heart rate, blood pressure, body temperature, and the rate at which food is converted into energy. Thyroid hormones are essential for the function of every cell in the body.
Hypothyroidism. An underactive thyroid means your thyroid gland, located in the neck, does not produce enough hormones. Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed. Medically known as hypothyroidism, an underactive thyroid is not usually serious.