Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 1, Problem 19RQ
Which of the following is an example of a normal physiologic process that uses a positive feedback loop?
- blood pressure regulation
- childbirth
- regulation of fluid balance
- temperature regulation
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Students have asked these similar questions
Select the 4 statements that correctly describe positive feedback pathways.
A sensor/receptor is required to monitor and limit levels.
A sensor/receptor is unnecessary to monitor and limit levels.
Feedback prevents homeostasis.
Feedback contributes to homeostasis.
Feedback stimulates the effector to continue to do the same thing.
Feedback stops the effector from doing one thing and stimulates it to do the opposite.
When the target level for a hormone is reached, feedback results in a reduction of that hormone being released.
When a target level for a hormone is reached, feedback results in an increase of that hormone being released.
A negative feedback system is one in which
a variable is changed in the same direction as the original change that initiated the system
the initiating variable is always reduced (made more negative)
a variable is changed in the opposite direction to the original change that initiated the system
two opposing variables are played against one other
the initiating variable is always increased (made more positive)
Which is an example of negative feedback?
lowering of blood glucose after a meal
blood clotting after an injury
lactation during nursing
uterine contractions during labor
nausea leading to vomiting
Chapter 1 Solutions
Anatomy & Physiology
Ch. 1 - View this animation...Ch. 1 - Water concentration in the body is critical for...Ch. 1 - A CT or CAT scan relies on a circling scanner that...Ch. 1 - A patient undergoing an MRI is surrounded by a...Ch. 1 - PET relies on radioactive substances administered...Ch. 1 - Which of the following specialties might focus on...Ch. 1 - A scientist wants to study how the body uses foods...Ch. 1 - The smallest independently functioning unit of an...Ch. 1 - A collection of similar tissues that performs a...Ch. 1 - The body system responsible for structural support...
Ch. 1 - Metabolism can be defined as the ________....Ch. 1 - Adenosine triphosphate (ATP) is an important...Ch. 1 - Cancer cells can be characterized as generic cells...Ch. 1 - Humans have the most urgent need for a continuous...Ch. 1 - Which of the following statements about nutrients...Ch. 1 - C.J. is stuck in her car during a bitterly cold...Ch. 1 - After you eat lunch, nerve cells in your stomach...Ch. 1 - Stimulation of the heat-loss center causes...Ch. 1 - Which of the following is an example of a normal...Ch. 1 - What is the position of the body when it is in the...Ch. 1 - To make a banana split, you halve a banana into...Ch. 1 - The lumbar region is ________. inferior to the...Ch. 1 - The heart is within the ________. cranial cavity...Ch. 1 - In 1901, Wilhelm Rontgen was the first person to...Ch. 1 - Which of the following imaging techniques would be...Ch. 1 - Which of the following imaging studies can be used...Ch. 1 - What are two major disadvantages of MRI scans?...Ch. 1 - Name at least three reasons to study anatomy and...Ch. 1 - For whom would an appreciation of the structural...Ch. 1 - Name the six levels of organization of the human...Ch. 1 - The female ovaries and the male testes are a part...Ch. 1 - Explain why the smell of smoke when you are...Ch. 1 - Identify three different ways that growth can...Ch. 1 - When you open a bottle of sparkling water, the...Ch. 1 - On his midsummer trek through the desert, Josh ran...Ch. 1 - Identify the four components of a negative...Ch. 1 - What regulatory processes would your body use if...Ch. 1 - In which direction would an MRI scanner move to...Ch. 1 - If a bullet were to penetrate a lung, which three...Ch. 1 - Which medical imaging technique is most dangerous...Ch. 1 - Explain why ultrasound imaging is the technique of...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Identify if the statement is True or False. If the statement is false, identify what is incorrect and correct it. The Endocrine system secretes regulatory hormones important for growth, reproduction and metabolism. The digestive system breaks down food, allows for nutrient absorption into blood and eliminates indigestible materials Extrinsic regulation results from activity of nervous system or endocrine system. In positive feedback the initial stimulus produces a response that reinforces the stimulusarrow_forwardmultiple choicearrow_forwardIdentify the follow as either negative or positive feedback. The pancreas producing insulin to decrease blood sugar after a meal. Clotting factors in the blood triggering the release of more clotting factors after damage to a blood vessel. Contractions in childbirth resulting in labor and delivery.arrow_forward
- Which of the following is an example positive feedback? contractions in childbirth blood glucose body temperature body fluid pHarrow_forwardWhich of the following is an example of a positive feedback loop? Regulation of Calcium levels in the blood Regulation of water balance Regulation of blood sugar Regulation of blood clottingarrow_forwardWhich of the following activities would represent a physiological study? Multiple Choice Observing the structure of the interior of the heart Viewing muscle tissue through a microscope Determining normal blood sugar levels for 20-year-old studentsarrow_forward
- 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:arrow_forwardcreate your own diagram by illustrating how the positive and negative feedback mechanism works. You should use specific condition in the body like (temperature regulation, osmotic balance and glucose levels). Make your diagram creative and presentable by making use of colors and other art materials and don’t forget to put labels on your work.arrow_forwardIn______, physical and chemical aspects of the body are being kept within tolerable ranges by body are being kept within tolerable ranges by controlling mechanisms. a. Positive feedback b. Negative feedback c. Homeostasis d. metastasisarrow_forward
- For the following physiological events, identify the following components of homeostatic control Variable Stimulus Receptor Input Control center Output Effector Response Thyrotropin-releasing hormone (TRH) is a hormone regularly released by the hypothalamus. Once released, it then stimulates the anterior pituitary gland causing it to release thyroid stimulating hormone (TSH). TSH then stimulates the thyroid gland to release the hormones T3 and T4. T3 and T4 have two main effects. First, they increase overall metabolism. Secondly, T3 and T4 can bind to these receptors on the hypothalamus and anterior pituitary, inhibiting the production of TRH and TSH respectively.arrow_forwardWhich organs systems are directly related or indirectly related to maintaining blood glucose levels? Digestive system Circulatory system Respiratory system Nervous system Endocrine system Reproductive system Integumentary system Immune system Skeletal system Muscular system Lymphatic system Urinary systemarrow_forwardWhat is similar and different about a feedback loop or feedback cycle when describing a physiological process in the body?arrow_forward
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