opening on the surface of the skin through which a single guard hair grows

a cell that does not possess a true nucleus, nor does it have many or any other cell organelles, e.g. bacteria and viruses

sensory cells that receive information about the position of limbs or the tension of muscles and tendons within the body

inflammation of the prostate gland

a large complex molecule made up of one or more chains of amino acids

presence of protein in the urine

a type of plasma protein, required for normal clotting of blood

eukaryotic single-celled organisms

itching

a type of grid where the lead strips are parallel to each other but are progressively shorter towards the edge of the grid