endocrine glands are the type of gland that secretes its product directly into the bloodstream.
endocrine glands are the type of gland that secretes its product directly into the bloodstream.
which type of gland secretes its product directly into the bloodstream?
endocrine glands
the hypothalamus connects directly to the pituitary gland, both through the circulatory system and by direct connection of neurons. also, within the cranium, the pineal gland, which attaches to the thalamus, controls the body's 24-hour rhythms circadian rhythm through the release of melatonin.









































the pituitary gland secretes hormones that directly impact the body as well as hormones that indirectly control body functions because they activate other endocrine glands, such as the adrenal cortex (acth) and the thyroid gland (tsh). these two glands when stimulated by pituitary hormones then release their own hormones.
head and neck anatomy
the gland can be compound tubular or compound tubuloalveolar, and the fluid it secretes (mucous, serous or lipid) varies between different groups of animals. in some animals, it acts as an accessory to the lacrimal gland, secreting fluid that eases movement of the nictitating membrane. research has proposed that the gland has several other functions, including that of a photoprotective organ, a location of immune response, a source of thermoregulatory lipids, a source of pheromones, a site of osmoregulation, inter alia. in mammals, the gland secretes an oily substance used to preen the fur. the presence or absence of this gland is one of the cues used by palaeontologists to determine when fur evolved in the ancestors of mammals.
harderian gland