Crohn's disease, also known as regional enteritis, is an inflammatory disease of the intestines.

Aneurysm is caused due to circumscribed dilation of an artery.

The transverse metatarsal ligament is a narrow band, which runs across and connects together the heads of all the metatarsal bones.

It is the larger of the two muscles of the tympanic cavity. Its role is to dampen sounds, such as those produced from chewing.

People with cerebral palsy have various motor problems, such as spasticity, paralysis and even seizures.

Proctitis is the inflammation of the lining of the rectum.

For particles with an aerodynamic diameter less than 1 µm, Brownian diffusion is a major way for deposition in airways where the bulk flow is very low or absent.

Coeliac disease is an auto-immune disorder of the small intestine.

These are defined as the lines of skin, which are confined to palms and soles along with the digits. They form small ridges being separated by fine parallel grooves arranged in curved arrays.

All of the above are protozoan related infections.

Ultraviolet radiation from the Sun stimulates melanocytes in the skin to produce more melanin, which in turn makes the skin browner. This seasonal tanning is most noticeable among light complexioned people. It has the effect of shielding the inner skin.

Erythroblastosis foetalis are the conditions where newborn infants suffer from anaemia, jaundice, enlarged spleen or liver and in severe cases, stillbirth or death soon after birth.

The pisiform bone is a small, knobbly, pea-shaped wrist bone. 

The rate of evolutionary change for skin colour is much slower than the homogenizing effect of human migrations today. This process of interregional movements of societies has been accelerating, particularly since the time of Columbus.

Concentration of bicarbonate ions is not controlled by PTH. Its concentration depends on the buffering capacity of blood in the form of carbonate bicarbonate buffer