Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 17CYR
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Structure and function are closely related at the organ level only.
Homeostasis is the condition of having a dynamic equilibrium of the internal environment.
Positive feedback loops are triggered by a deviation from the set point of a regulated variable and are shut down when conditions return to the set point.
The effects of negative feedback loops are amplified to create an escalating response.
Cell-cell communication is required to coordinate the activities of the whole body.
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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 stimulus
Select the 4 statements that correctly describe negative feedback pathways.
A sensor/receptor is required to monitor and limit levels.
A sensor/receptor is unnecessary to monitor and limit levels.
Feedback contributes to homeostasis.
Feedback prevents 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 an increase of that hormone being released.
When the target level for a hormone is reached, feedback results in a reduction of that hormone being released.
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.
Chapter 1 Solutions
Human Anatomy & Physiology
Ch. 1.1 - What are learning styles? Which learning style(S)...Ch. 1.1 - 2. How should you approach reading a textbook,...Ch. 1.1 - What are some study strategies to improve your...Ch. 1.1 - Prob. 4QCCh. 1.1 - 5. What are some strategies for taking good notes...Ch. 1.1 - 6. How can you use the features found in each...Ch. 1.1 - 7. How should you approach the study of figures...Ch. 1.1 - Design a study schedule for yourself up to the...Ch. 1.1 - 2. Determine several study strategies that will...Ch. 1.2 - List the properties common to all living...
Ch. 1.2 - Prob. 2QCCh. 1.2 - Prob. 3QCCh. 1.2 - 4. How do gross anatomy and microscopic anatomy...Ch. 1.2 - How are physiological specializations classified?Ch. 1.2 - The condition hypothyroidism is characterized by a...Ch. 1.2 - 2. At first glance, a human and a rose plant seem...Ch. 1.3 - Define anatomical position.
Ch. 1.3 - Fill in the blanks: The nose is to the mouth....Ch. 1.3 - Fill in the blanks: a. The wrist is also known as...Ch. 1.3 - Explain how the three main planes of section...Ch. 1.3 - Locate a mole, scar, tattoo, or other mark on your...Ch. 1.3 - You need to examine the internal anatomy of both...Ch. 1.4 - What are the two subcavities of the dorsal body...Ch. 1.4 - 2. List the subdivisions of the thoracic and...Ch. 1.4 - 3. What are serous membranes, and what are their...Ch. 1.4 - Explain how serous membranes form certain ventral...Ch. 1.4 - Prob. 1AWYLCh. 1.4 - Prob. 2AWYLCh. 1.4 - Inflammation of serous membranes may cause the...Ch. 1.5 - 1. What is homeostasis, and why is it important?
Ch. 1.5 - 2. What is a homeostatic imbalance?
Ch. 1.5 - How do negative feedback loops maintain...Ch. 1.5 - Prob. 4QCCh. 1.5 - Prob. 5QCCh. 1.5 - 6. Define gradient, and give examples of different...Ch. 1.5 - 7. Why is cell-cell communication important?
Ch. 1.5 - 8. What are the two major methods by which cells...Ch. 1.5 - The cells of cancerous tumors undergo changes that...Ch. 1.5 - Prob. 2AWYLCh. 1.5 - 3. You plug in an electric air freshener and...Ch. 1 - Fill in the blanks: The study of the form of the...Ch. 1 - 2. Mark the following statements as true or false....Ch. 1 - Prob. 3CYRCh. 1 - 4. Which of the following resources does the book...Ch. 1 - Prob. 5CYRCh. 1 - 5. Which of the following correctly describes the...Ch. 1 - Mark the following statements as true or false. If...Ch. 1 - Match the following terms with the correct...Ch. 1 - 8. The upper and lower limbs are known broadly as...Ch. 1 - The arm is known as the ___________ region; the...Ch. 1 - A parasagittal section divides the body or body...Ch. 1 - 11. Fill in the blanks: The two divisions of the...Ch. 1 - 12. Fill in the blanks: The two main divisions of...Ch. 1 - 13. In which of the following cavities do serous...Ch. 1 - 14. Serous fluid functions in:
a. Providing...Ch. 1 - 15. Which organs would you expect to find in the...Ch. 1 - 16. Mark the following statements as true or...Ch. 1 - Prob. 18CYRCh. 1 - Examine the structure of the skull, and predict...Ch. 1 - Prob. 2CYUCh. 1 - Prob. 1AYKCh. 1 - 2. During a procedure on Ms. Norman’s pancreas, a...Ch. 1 - Later that same day, the surgeon performs a...Ch. 1 - The baroreceptor reflex causes blood pressure to...
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- 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_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_forwardBecause the body's goal is to maintain stable, homeostatic conditions, positive feedback occurs more often than negative feedback. True or Falsearrow_forward
- 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.arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Structure and function are closely related at the organ level only. b. Homeostasis is the condition of having a dynamic equilibrium of the internal environment. c. Positive feedback loops are triggered by a deviation from a homeostatic set point and are shut down when conditions return to the set point. d. The effects of negative feedback loops are amplified to create an escalating response. e. Cell-cell communication is required to coordinate the activities of the whole bodyarrow_forwardYour blood pressure begins to increase because you are waiting to interview for a new job. Your nervous system and your heart will work together and reduce your heart rate and dilate your blood vessels in response. This is an example of what type of feedback? Define homeostasis. asap please.arrow_forward
- 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 environmentarrow_forwardDescribe a general physiological control system, includingthe role of negative feedback.arrow_forward_________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms initiated outside an organ that alter the activity of the organ.arrow_forward
- Define: homeostasis What is a negative feedback loop? What is a positive feedback loop? Which of those two is rare?arrow_forwardPositive feedback mechanisms are beneficial, but they need to be controlled. Discuss a scenario where if positive feedback was allowed to continue, the body might get damaged.arrow_forwardChoose a situation on how the body maintains homeostasisarrow_forward
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