HUMAN A+P MOD.MASTERING
2nd Edition
ISBN: 9780136919520
Author: AMERMAN
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 16CYR
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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Chapter 1 Solutions
HUMAN A+P MOD.MASTERING
Ch. 1.1 - What are some examples of learning modalities?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. 1.2 - What are the properties common to all living...Ch. 1.2 - Prob. 2QCCh. 1.2 - 3. What are the 11 organ systems in the body?
Ch. 1.2 - 4. How do gross anatomy and microscopic anatomy...Ch. 1.2 - How are physiological specializations classified?Ch. 1.3 - What is 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 - How do the three main planes of section differ?Ch. 1.4 - What are the two subcavities of the posterior 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 anterior...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 - What is a gradient? What are some examples of...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 - Fill in the blanks: The study of the form of the...Ch. 1 - Mark the following statements as true or false. If...Ch. 1 - Prob. 3CYRCh. 1 - Prob. 4CYRCh. 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. 17CYRCh. 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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- _________ controls are inherent to an organ, whereas _________ controls are regulatory mechanisms initiated outside an organ that alter the activity of the organ.arrow_forwardDefine: 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_forward
- Compare and contrast the operation of negative and positive feedback mechanisms in maintaining homeostasis. Provide two examples of variables controlled by negative feedback mechanisms and one example of a process regulated by a positive feedback mechanism.arrow_forwardChoose a negative feedback loop and state the 5 components. Explain how positive feedback is different from negative feedback and give an example of positive feedback.arrow_forwardExplain the following statement. “All systems of the body contribute to homeostasis.” Use an ANALOGY of DAILY LIFE and give an example of a negative feedback loop.arrow_forward
- Why does homeostasis normally involve negative feedback loops rather than positive feedback loops? Provide an example of each.arrow_forwardDescribe the term homeostasis including the control mechanisms negative feedback and positive feedback.arrow_forwardDescribe how negative feedback and positive feedback are involved in homeostatic regulation.arrow_forward
- ACTIVITY 2 Direction: Draw a Venn Diagram using this table. NEGATIVE FEEDBACK MECHANISM Most control mechanisms in the human body are negative POSITIVE FEEDBACK MECHANISM A positive feedback mechanism ENHANCES the original stimulus to ACCELERATE activity Integrator triggers a move in the SAME DIRECTION triggering an “explosive" response Positive feedback mechanisms are less common Ex. Blood clotting, childbirth (oxytocin) feedback mechanisms A negative feedback mechanism DECREASES the intensity of the stimulus and eliminates it When a variable is above or below set point, integrator triggers a move in the OPPOSITE DIRECTION to reach the set value Ex. Body temperature, blood pressure, pH and CO2 levels, blood glucose levelsarrow_forwardDirection: Complete the Venn Diagram. In the outer circles, write the difference between negative and positive feedback and the similarities where the circles overlap. Use the sentences below. Negative Feedback Positive Feedback • a control system that sends a signal to increase a response. • a control system that helps the body maintain homeostasis by sending a signal to stop a response. • Less common but, occur in specific situations • Occur more often in the body, helping in maintaining various conditions of the body • Benefits the body • Helps to sustain homeostasis • A feedback mechanism resulting in the growth of the output signal • A feedback mechanism resulting in the slowing down of a process • Blood clotting • Blood pressure Similaritiesarrow_forwardIdentify if the statement is True or False. If the statement is false, identify what is incorrect and correct it. Cellular response to injury depends on nature, duration and severity of injury and Consequences of injury depend on type, state and adaptability of the injured cell. The causes of cellular injury can be a depletion of ATP, mitochondrial Damage, and entry of Calcium into the cell, increase reactive oxygen species (ROS), membrane Damage, DNA damage and Protein misfolding. Intracellular Ca++ is normally low and is sequestered in mitochondria and endoplasmic reticulum. Increased cytosolic Ca++ activates enzymes such as ATPase, phospholipases, proteases, endonucleases that can lead to cell injury and death.arrow_forward
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