Walley is a mid-sized predatory fish in cold northern lakes and rivers. They feed heavily on small fish, and recently we have measured high levels of endocrine mimic toxins in their system. Walley are showing many developmental issues related to this. In studies of humans, we see those that are regular customers of the Friday fish-fry or regularly consume Walley show even higher levels in their blood. What is the accumulation of toxins like the endocrine mimics called and what is the reason for the high levels in humans?

Walley is a mid-sized predatory fish in cold northern lakes and rivers. They feed heavily on small fish, and recently we have measured high levels of endocrine mimic toxins in their system. Walley are showing many developmental issues related to this. In studies of humans, we see those that are regular customers of the Friday fish-fry or regularly consume Walley show even higher levels in their blood. What is the accumulation of toxins like the endocrine mimics called and what is the reason for the high levels in humans?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter19: The Peripheral Endocrine Glands

Section: Chapter Questions

Problem 1TAHL

See similar textbooks

Similar questions

Match these examples to the correct type of signaling Estradiol released into the blood stream, acts on the pituitary cells Oxytocin produced in hypothalamic neurons, released from axons into the blood stream in the posterior hypothalamus Epithelial cells in arterioles release nitric oxide that causes relaxation of the adjacent smooth muscle cells Insulin released from the pancreas into the blood, acting on liver cells to simulate glucose uptake Release of cytokines by a macrophage, with cytokines acting on that macrophage to stimulate its immune function A. Neuroendocrine signaling B. Autocrine C. Paracrine signaling D. Endocrine signaling
A certain peptide hormone is produced in the anterior pituitary gland located at the base of the mammalian brain. The hormone targets specific cells in many parts of the body. Which of the following best explains a possible mechanism that would allow the hormone to reach all of the target cells in the body? A B с D The hormone diffuses into target cells adjacent to the anterior pituitary gland and dif- fuses through their cell membrane. The hormone moves through plasmodesmata between cells until it has reached all cells with the correct intracellular binding sites. The hormone interacts with neurons at the base of the brain and directs signals to the target cells through the neuronal network. The hormone is released into the bloodstream, where it is transported to all cells with the correct receptors.
Opioids cross the placental barrier, and a newborn of opioid-dependent mother will undergo withdrawal within 6-12 hours of birth. The long-term consequences of prenatal opioid dependence are poorly understood, but it may be best practice to maintain the mother on methadone and treat the infant with opioid rather than withdraw the mother before child delivery. Give some examples of drugs that can be used to reverse withdrawal and which medications can be used for opioid dependence treatment?
What is the role of the adrenal cortex & medulla in the fight or flight response? I know that when the body starts to begin the process of the fight or flight repsonse that the adrenal medulla releases adrenaline (epinephrine hormones). Is that the only role the adrenal medulla has? I dont know what the role of the adrenal cortex has in the fight or flight response. I think it might have something to do with cortisol, which is the primary stress hormone.
In addition to carrying information between the brain and the peripheral nervous system, the spinal cord also functions 11 to coordinate fine movements in skeletal muscles to carry impulses which control heart and breathing rates as the control center for some reflex actions as the control center for production of digestive secretions Hormones move through the circulatory system and come in contact with all tissues in the body. Whether a group of cells is targeted by a particular hormone depends upon ↑ #3 O O @ 2@ 3 £ the location of the cells in relation to the gland that produces the hormone the presence of appropriate receptor proteins on the cell membranes whether the cells are actively dividing and growing whether the cells are also being stimulated by the nervous system с 54 $ 4¢ O M % 5 ¤ A 31 acer Oll 6¬ ? & 71 O * 2 9 x
What is the importance of feedback systems in the control of hormonal output in mammals? Offer two examples of a hormonal feedback pattern, exclude the examples provided/mentioned in the module.
Peanut and tree allergies are on the rise in modern, industrialized countries. Exposure to a protein in the nuts causes sensitive people to react with skin hives, reddened skin, breathing problems including the closing of the throat (anaphylaxis), and even heart attack. Much like a mosquito bite or other insect bite, this is all mostly due to the actions of one hormone in particular. 1) What hormone triggers this reaction? 2) Why does it cause swelling/closing of the throat/airways? 3) How does it change or impact the heart rate and/or blood pressure to life-threatening levels?
Scientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. What can we, as a society or as individuals, do to protect our ecosystems and watersheds from endocrine disruptors?
Scientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. Identify two reasons why we should be concerned about the feminization of fish.
Scientists have noticed a disturbing trend in the freshwater ecosystems in North America: a large number of male fish are found to contain female egg cells growing inside their testes. The feminization of male fish is called intersex, and its exact cause is still baffling many scientists. Many studies have shown that intersex can be induced when male fish are exposed to endocrine disruptors. An endocrine disruptor stimulates or inhibits the endocrine system, causing either an increase or decrease in hormone production. However, it is easier to demonstrate the direct cause and effect in a laboratory environment where the fish are only exposed to a single endocrine disruptor. In nature, there are many other variables such as low oxygen levels or warmer water temperatures that could also cause feminization in fish. Name two endocrine disruptors, identify their source and explain how they can get into freshwater bodies? An example has been given. Endocrine Disruptor: DDT…
Endocrinologists, scientists and medical doctors who study how hormones work in the body, can track reproductive hormones in female mammals to determine when and how much of each of the hormones listed in the table above are present in the body Tracking the leveis of hormones and when they are released provides valuable information for developing tests that can predict when events, like ovulation, will occur 5. Given the information in the table above, identify at least threo hormones that, if tracked, would be good indicators that ovulation is about to occur ina female giant panda. WCinizing hoYYmone (LH it IS the production tyiggering vel M the follicie.- Follice Shmulahng hormone (FSH) Promotes the graw Dlicies in the Ovary that produce cstrogçn 8 EStYogen: Prepaves the ui cal implantation of 'an cmbhyo after fertilizatian takes place. In order to best support panda reproduction by natural mating and artficial insemination, highly sensitive and specific tests are wdaoeded to…
A scientist hypothesizes that the pancreas’s hormone production is controlled by neural stimuli. Which observation would support this hypothesis? Insulin is produced in response to sudden stress without a rise in blood glucose Insulin is produced in response to a rise in glucagon levels Beta cells express epinephrine receptors Insulin is produced in response to a rise in blood glucose in the brain.