1. Draw block diagrams to represent the following feedback control systems: a) Control of human skin temperature by sweating b) Control of a diabetic person's blood sugar level through insulin injections Note: Besides the standard feedback control system components, include disturbances in the diagram. Label each block and signal with their physical names. Briefly explain how each system works.
Q: 7. Draw a diagram that shows how the parts of a negative feedback loop interact. (Don't describe a…
A: The function of the Negative feedback systems is to maintain a comparative constant levels of…
Q: Related to homeostatic control of a variable, which of the following is/are example(s) of a…
A: The feed-forward loop is determined by the measurement of disturbances before they affect the…
Q: Give ONE example of a Human Activity scenario that involves the interactions between ALL of these 6…
A: If organ systems are to work together as a team, they must communicate. To keep the body in control,…
Q: 1) Explain how body temperature regulation takes place. 2) Describe the mechanisms of heat loss and…
A: Answer: Introduction: 1) Thermoregulation is a process by that mammals preserve body temperature…
Q: Marianne has type 1 diabetes. One day, after accidentally injecting herself with too much insulin,…
A: Type 1 diabetes is caused by the low-level production of insulin by the beta cells of the pancreas.…
Q: 1. Talking about Diabetes Imagine that at a recently family gathering, you found out a family member…
A: Glucose is the fuel for the body and is broken down through glycolysis. Nutrition and physical…
Q: Which of the following is NOT an effect of the nerve agent, tetrodotoxin: Group of answer choices a.…
A: Tetrodotoxin is an exceptionally potent poison (toxin) found mostly in the liver and sex organs…
Q: 2. A man with insulin-dependent diabetes is brought to the emergency room in a near comatose state.…
A: Insulin is a hormone secreted by the alpha cells of islets of Langerhans in the pancreas. Insulin…
Q: 5. The following is a sequence of steps that describes the flow of information from an external…
A: NOTE:- since you have posted a question with multiple subparts and sub-sub parts so we will be…
Q: 1. What does not occur when calcium levels fall below the normal range? A. Parathyroid hormone is…
A: Calcium plays a very significant role in our bodies. Approximately 99 percent of the calcium in our…
Q: Identify the key features of the feedback loop that regulates your blood sugar after a meal.…
A: Normal blood sugar level is 120mg/DL of blood. It is very important to regulate the blood sugar…
Q: Choose one Group of answer choices: A. Endogones pyrogens inducing fever B. None of the above C.…
A: Negative feedback loops are characterized by their ability to either increase or decrease a…
Q: . How are dangerous receptors (e.g., opiate, EGF receptors, insulin receptors) handled differently…
A: Specific ligands come and bind to specific receptors to release signals.
Q: Identify the key features of the feedback loop that regulates your blood sugar after a meal! Control…
A: Feedback Loop Remember that homeostasis is the maintenance of a relatively stable internal…
Q: After giving a response to low sugar levels in the blood, the pancreas releases the hormone…
A: A hormone called glucagon is important in regulating blood sugar (glucose) levels. It is created by…
Q: giving a response to low sugar levels in the blood, the pancreas releases the hormone glucagon. In a…
A: The answer of this question is below,
Q: Positive feedback loops are used in chemical messaging in the body. Below is a list of steps that…
A: The correct order of the list is as follows:- 1) 5) 3) 2) 4) Correct order 1)A sensor in a persons…
Q: When the concentration of glucose in the blood falls below a certain level the body issues a signal…
A: The pancreas is the heterochrony gland that acts as both exocrine and endocrine glands. The…
Q: O 1. The endocrine system is.... a) a system of vessels that circulate blood around the body b) a…
A: Introduction Homeostasis is the ability to maintain a relatively stable internal state that persists…
Q: Changes in the temperature of our external environment can cause core body temperature to rise or…
A: Semipermeable membranes are those which allow only selected molecules to pass through while blocking…
Q: How does the biology of fat cells change in response to obesity? How do these changes increase the…
A: Lipid metabolism is the mechanism by which bile emulsifies almost all of the fat absorbed by the…
Q: A researcher is curious whether 30 minutes of daily exercise can decrease the blood glucose levels…
A: Physically being active throughout the day is very essential for human beings. A healthy body…
Q: 1. You are an endocrinologist in a Diabetes Centre, and a 38 year-old person who has no signs…
A: Endocrinology is the study of endocrine glands and Endocrinologist is a person who can diagnose and…
Q: Heat exchange with the environment depends on the surface area-to-volume ratio of the body. Assuming…
A: Heat exchange with the environment depends on the surface area-to-volume ratio of the body. Assuming…
Q: The kidneys play a major role in maintaining A)homeostasis by removing urea, water, and other…
A: The kidneys help maintain homeostasis by regulating the concentration and volume of body fluids. For…
Q: 1. Create the equation where life expectancy of a person is positively affected by the number of…
A: In any experiment type and number of variables play a very important role. In experiments some…
Q: 1. a) What is the purpose of negative feedback? b) Using the example of thermoregulation, explain…
A: As per our company guideline we are supposed to answer only first question. Kindly repost other…
Q: How can aspirin influence homeostasis in humans
A: Aspirin is a medication used to reduce pain , fever or inflammation. The primary effect of aspirin…
Q: 1. An example of negative feedback is the control of blood glucose levels by glucagon. A __________…
A: Insulin is a peptide hormone released by pancreatic beta cells that plays an important function in…
Q: Jamie has fallen ill. Her body temperature has risen to high levels. Her blood pressure is high and…
A: KEY WORDS:- Negative feedback - In this process, stimulus is reduced n the system. It actually helps…
Q: a 38 year-old person who has no signs (symptoms) for diabetes arrived to your clinic, but when you…
A: The blood sugar level or blood glucose level is the concentration of glucose present in the blood of…
Q: it is a warm day and you feel a little chilly, on checking your temperature, you find that your body…
A: The term "Homeostasis" means "Steady state". Homeostasis can be defined as the tendency to attain a…
Q: The human body needs to maintain stable internal conditions and characteristics such as blood…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: 4. Compare the metabolic hormonal control that occurs during a fed state to a fasted/stress state.
A: Introduction Metabolism is a set of biological events in living cells that are catalysed by enzymes.…
Q: A recent science daily article described the use of taking a "selfie" from a smartphone for the…
A: Pancreatic cancer is a type of cancer that develops in the pancreas tissues.
Q: 1. Create a flow chart to show how hormones keep blood glucose levels within homeostatic norms. Show…
A: We are providing answer 1 only. Insulin and glucagon are hormones that assist control glucose levels…
Q: a physiologist, which of the following terms should you immediately associate with negative feedback…
A: Homeostasis is the process in which the body maintains a near-constant internal environment. This is…
Q: In order for vitamin D to be actively formed, which of the following actions is required in the…
A: Skin is the outer protective covering of the body and also plays an important role in the synthesis…
Q: negative feedback loop for maintaining homeostasis for thermoregulation where your body temperature…
A:
Q: Describe how blood sugar (e.g. glucose plasma concentration) is regulated with the hormones,…
A: The management of blood glucose (glucose) by insulin secretion could be a ideal example of a…
Q: Marianne has type 1 diabetes. One day, after accidentally injecting herself with too much insulin,…
A:
Q: In Type 1 Diabetes, the body is unable to maintain homeostasis of blood glucose because the pancreas…
A: Introduction Diabetes mellitus, or diabetes, is a metabolic condition characterised by excessive…
Q: 1. Which of the following statements is correct? A. Adrenal glands are inferior to the kidneys B.…
A: A tissue is a group of one or more types of cells an their intracellular substance that perform a…
Q: Using the diagram above, describe the differences between positive and negative feedback.
A: Human blood sugar level is controlled by an endocrine organ called pancreas Negative feedback…
Q: Which physiological trigger will result in the sensation of hunger? A. High glucose levels B. Eating…
A: The human body is a complex system of a number of physiological processes. All these processes are…
Step by step
Solved in 3 steps with 2 images
- 1) As a physiologist, which of the following terms should you immediately associate with negative feedback regulation? Answer choices Constancy Relative constancy Relative constancy in interstitial fluid Relative constancy in intracellular fluid 2) Which of the following is true about physiological set-points? Answer choices They act as the integrating center in a negative feedback arc They represent the internal environment They are determined by the actions of the receptors and integrating centers They are constant They act as the effector in a negative feedback arc 3) What is the general purpose of negative feedback mechanisms? Answer choice a. to maintain a constant internal environment b. To anticipate changes in the environment c. To return a variable to its set-point d. To bring about the rapid change of a variable e. To detect changes in the external environmentScenario: You are working in an outpatient clinic where you meet a 34-year-old married mother of two small children who is seeing the doctor for numbness and tingling in her right leg. Over the next 6 months, she has critically high glucose levels, she doesn't take her medication, and the provider is significantly concerned. She continues to have numbness and tingling that migrate from her left hip, leg, and foot. The physician orders scans of her leg and lower spine. Each scan is negative. She continues to have pain and numbness and tingling in her neck, back, and legs. During her most recent visit, the provider orders a scan of her thoracic spine and right knee. One week later, the patient e-mails the provider that while the knee scan was completed, no one has contacted her about the other scan. The nurse checks the record and responds, "My bad.... I missed it.... I'll order it now." The next day the patient unexpectedly appears at the clinic, where you observe her staggering at the…Define homeostasis. What happens when homeostasis fails? List the three basic components of a control system and give an example. Describe the components of a reflex pathway. Contrast the response loop and the feedback loop. Explain the relationship between a regulated physiological variable and its setpoint. Is the physiological variable exactly at its setpoint? Compare and contrast negative and positive feedback. Give a biological example of each. Is the setpoint constant or can it change over time? If setpoints can change over time, what is this called? Chapter 2:
- Part 2: Please read the following scenarios. For each scenario, identify the confound and suggest how it might be removed in a follow-up experiment. McCann and Holmes (1984) tested the hypothesis that exercise reduces depression. They randomly assigned depressed undergraduate women either to an exercise condition (attending an aerobics class a couple of times a week for ten weeks) or to a relaxation training condition (the individuals relaxed at home by watching a videotape over the same period of time). Although the results showed that the exercise group reported less depression at the end of the ten-week period than did the relaxation group, why can't the researchers conclude that exercise reduces depression?Normally, when blood glucose level increases (e.g. after a meal), the islet cells in the pancreas secrete insulin. When insulin molecules bind to insulin receptors on the surface of a muscle cell, the receptors become activated, initiating a signaling pathway which eventually results in the increase in the number of passive glucose transporter on the muscle cell surface thus increases the uptake of glucose into the cell and decrease blood glucose level. Indicate whether the following conditions/practice will likely lead to diabetes (mark Yes or No). [Select] degeneration of islet cells [Select] [Select] [Select] a mutation in the insulin receptor that increases its kinase activity ✓ exercise a mutation in the insulin receptor that prevents dimerizationGive an example of a feedback mechanism in the human body. Explain your example briefly. Make sure to identify the type of feedback (negative or positive), the receptor, the control center and the effector.
- Describe how blood sugar (e.g. glucose plasma concentration) is regulated with the hormones, insulin, and glucagon. For this feedback loop, identify the following components of the feedback loop: stimulus, receptor, control center, efferent pathway, effector, and response. Be comfortable with this feedback loop to be able to describe the effects of changing various components of the feedback loop.Notice that organ function is regulated by nerves and by hormones. What is the difference between nerve and hormone control? Why both kinds of controls? Discuss your answers.An insulin pump can be programmed to deliver a bolus:a) To cover food or a high BGb) To cover exercise or treat low blood sugarc) To cover exercise or treat high blood sugar
- Diazepam is used as a skeletal muscle relaxant and as a sedative administered before surgery, as well as a treatment for anxiety. For children above the age of 6 months who suffer from anxiety disorders, diazepam is administered at a reduced dosage. Suppose a child with a body surface area (BSA) of 0.8 m2 is to receive a dose of diazepam divided into three administrations. Using the BSA rule and assuming that an adult dose of diazepam is 12 mg, what are the daily dose and the dose per administration? mgAn elderly gentleman has recently been diagnosed with cirrhosis of the liver. He admits to being a heavy drinker. This man is your patient. Given the damage to his liver, you would have concerns about all of the following except a. regulating his ability to maintain body temperature, because of decreased thyroid hormone levels. b. internal bleeding, because he has impaired ability to synthesize clotting proteins. c. edema, because of impaired synthesis of plasma proteins (e.g., albumin). d. jaundice, because his liver is less efficient at removing bilirubin from the blood.Which of the following options best describes how epinephrine (adrenaline) is released into the bloodstream? O The sympathetic nervous system stimulates the hypothalamus, which releases sends signals to the anterior pituitary gland, which releases epinephrine into the blood O The sympathetic nervous system stimulates the adrenal medulla, which releases epinephrine into the blood O The parasympathetic nervous system stimulates the adrenal medulla, which releases epinephrine into the blood O The vagus nerve stimulates the adrenal medulla, which releases epinephrine into the blood The parasympathetic nervous system stimulates the adrenal cortex, which releases epinephrine into the blood