The sodium-potassium ion pump will __________. pump three sodium ions out of the cell for every two ions of potassium it brings into the cell. A neuron will not respond to a second stimulus of equal strength to the first stimulus to which it has already responded because __________.
To answer that question, let's start by taking a look at the structure of your skin. While your skin is made of three layers including the subcutis and the dermis, hot showers affect the outermost layer, the epidermis.The epidermis is mostly composed of skin cells loaded with keratin, the same substance that makes up your hair and nails.o answer that question, let's start by taking a look at the structure of your skin. While your skin is made of three layers including the subcutis and the dermis, hot showers affect the outermost layer, the epidermis.
Detection of touch, pressure, pain and temperature. The Epidermis. The most abundant cells in the epidermis are the keratinocytes (so called because they. contain large amounts of the protein keratin). Most of the body is covered by thin skin, which has only 4 layers of keratinocytes in the. epidermis. The palms of the hands and soles of the feet are covered with thick skin, which has 5. layers of keratinocytes in its epidermis. 33. Skin color depends on: 1. pigment - carotene and melanin.