Category: Human Anatomy

  • How many teeth does an adult human have?

    How many teeth does an adult human have?

    How many teeth does an adult have? An adult should have a total of 32 teeth. The teeth of an adult are divided into two parts, with 16 teeth in the upper jaw (in the upper part of the oral cavity) and 16 teeth in the lower jaw (in the lower part). An adult’s set…

  • How Many Bones Does a Human Have?

    How Many Bones Does a Human Have?

    The skeleton of an adult, healthy human has 206 bones. However, in the case of children, this number is higher (according to some studies, teenagers may have up to 356 bones). This happens because many ossification points fuse together at a later age – shafts join with epiphyses. On the other hand, in older people,…

  • What determines eye color?

    What determines eye color?

    Eye color is a polygenic inherited trait. The color is primarily determined by the amount of melanin in the iris, the density of the iris stroma cells, and the presence of pigments in the iris epithelium. In humans, there are three genes (EYCL1, EYCL2, EYCL3) that are responsible for the phenotypic eye color. If all…