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Thermoregulation is a form of homeostasis, a phenomenon which acts to maintain constant internal environment. The provision of a stable core body temperature is essential as many of the bodily processes carr...

The liver is the largest solid organ in the body as well as the largest gland. It is made up of 2 large lobes (right lobe bigger than the left lobe). Each lobe is then comprised of much smaller lobules. With...

A nucleotide is the basic unit that makes up DNA. A singular nucleotide is made up of x3 components: A base (1 of 4 molecules = A, T, C or G) 5 Carbon sugar (deoxyribose = DNA or ribose = RNA) Phosphate grou...

At rest there is a difference in the concentration of sodium ions (Na+) across the membrane of the neurone. Outside the neurone in the extracellular fluid (ECF) the concentration of Na+ is around 140 mEq/L w...

Within the muscle fibre tropomyosin is wrapped around actin filaments and it blocks the binding sites for the myosin-heads. When calcium ion concentration increases, calcium ions bind to sites on the tropomy...