Sources of hormones in humans = the endocrine system [Fig. 37.2] 3. Target cells = cells with receptors for a given chemical messenger that can alter their activities in response to messenger.- Hormones are transported throughout the body by the blood, but they only elicit responses in target cells.. Do not diffuse into cells. b. Target cells have specific receptor for hormone on cell surface. c. Hormone binds to receptor and causes a second messenger to be released within the cell.
Definition of herder. : one that herds; specifically : a person who manages, breeds, or tends to livestock : herdsman 1.
A dog that reflects Lappish mythology, shamanism and troll-drums, exotic herbs and smoky light flickering through the branches of the mountain birches. This is what the Lapponian Herder is about. He also embodies hard work and severe conditions, unselfishness and devotion to his work and trusted ones.