Answer:
It is the hypophyseal portal system.
Explanation:
The pea-sized endocrine gland called the pituitary gland or hypophysis secretes hormones that control many functions of the human body such as growth, metabolism, blood pressure regulation, temperature regulation, pregnancy, childbirth, pain relief, breastfeeding, functions of the sex organs, kidneys and thyroid glands. It consists of anterior and posterior lobes and is located at the bottom of the hypothalamus, which controls the release of pituitary hormones.
The anterior pituitary (adenohypophysis) is connected to the hypothalamus by a network of blood vessels called the hypophyseal portal system, which helps in the transport and exchange of hormones between the hypothalamus and anterior pituitary gland. The hypophyseal portal system consists of a network of primary capillaries in the hypothalamus, a group of small vessels (portal venules) that travel down the stalk, and a complex of secondary capillaries in the anterior pituitary. The releasing hormones such as growth hormone-releasing hormone, gonadotropin-releasing hormone, thyrotropin-releasing hormone and corticotropin-releasing hormone produced by the hypothalamus are transported through the primary capillaries and portal venules and diffuse out of the secondary capillaries into the anterior pituitary.
These releasing hormones bind to endocrine cells in the anterior pituitary and regulate their release of hormones. The endocrine cells in the anterior pituitary are somatotropes that secrete human growth hormone, corticotropes which secrete adrenocorticotropin, thyrotropes which secrete a thyroid-stimulating hormone, gonadotropes which secrete gonadotropic hormones (luteinizing hormone and follicle-stimulating hormone) and lactotropes which secrete prolactin.
Answer:
Glow worms have a luminescent glow called bioluminescence or glowing light, to attract small insects that emerge from the leaf litter and water to where the glow worms reside. The glow worms construct "snares" (like a spider's web) made from silk threads and sticky droplets to capture and eat the insects attracted to their glow.
Answer
List two adaptations the cave glow worm has for capturing prey in a cave. droos a line of silk to trap palle - silk comes from glands in the mouth. a produces light to lure pret a insects are drawn towards light and get trapped in 3. What is the single biggest challenge for living organisms in caves?
Explanation:
Answer:
Hypothalamus
Explanation:
The cell bodies of the neurosecretory cells of the paraventricular and the supraoptic nuclei of the hypothalamus synthesize the hormones oxytocin and antidiuretic hormone (ADH), also called vasopressin. These hormones are stored and released in blood by the posterior pituitary gland. The posterior pituitary does not synthesize hormones.
The hormones from the hypothalamus are packed into vesicles and are transported to the axon terminals of the posterior pituitary via the hypothalamic–hypophyseal tract. The hormones are stored in axon terminals and released in the blood when required.