Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 25, Problem 6WIO
Summary Introduction
To describe:
The process of scenarios explained in order to explain the homeostasis.
Concept introduction:
Hypothalamus gland is also known as the master gland. It is a ductless gland that is attached to the roof of the third ventricle near thalamus in the brain.
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Which of the following is an example of homeostasis? Choose all answers that are correct as there may be more than one correct answer.
Show answer choices
The body shivering when outside in the cold.
The release of insulin after a meal to encourage your body to absorb the sugar from your blood, thus lowering your blood sugar.
Producing sweat when outside on a hot day that can evaporate into the air.
Breathing faster while exercising to add more oxygen to the blood and remove excess carbon dioxide from the blood.
Stretch receptors in your blood vessels detect when blood pressure is high and send signals to increase the diameter of your blood vessels and reduce the output from the heart to lower your blood pressure.
The feedback loop shown below is an example of negative feedback that uses the narrowing
and widening of blood vessels in the skin to regulate body temperature.
DIRECTIONS: Label the diagram using the words or phrases from the word bank.
Then answer the questions that follow.
body temperature falls
body temperature rises
normal body temperature
vasoconstriction
vasodilation
Feedback:
Feedback:
Response:
ACY
MENT
CHA
RICH
OF EATIO
Response:
EX
Stimulus:
Increase in Body
Temperature
Stimulus:
Decrease in Body
Temperature
Body temperature is homeostatically regulated around a set point. Given your knowledge of negative feedback and homeostatic control systems, predict whether narrowing or widening of the blood vessels of the skin will occur when a person exercises strenuously?
Chapter 25 Solutions
Biology: Concepts and Investigations
Ch. 25.1 - What is the difference between anatomy an d...Ch. 25.1 - What is the relationship among cells, tissues,...Ch. 25.1 - Trace the bodys early development from one...Ch. 25.1 - Prob. 4MCCh. 25.2 - If you were given a microscope slide with a slice...Ch. 25.2 - Suppose you determine that a tissue sample...Ch. 25.2 - Prob. 3MCCh. 25.3 - Which organ systems contribute to each of the five...Ch. 25.3 - Prob. 2MCCh. 25.4 - Use figure 25.9 to explain which materials enter...
Ch. 25.4 - Prob. 2MCCh. 25.5 - How does the integumentary system help the body...Ch. 25.5 - Prob. 2MCCh. 25.6 - Prob. 1MCCh. 25.6 - Suggest a specific prediction related to folic...Ch. 25 - Which of the following represents the correct...Ch. 25 - Epithelial tissue consisting of multiple layers of...Ch. 25 - Which of the following features do all types of...Ch. 25 - Prob. 4MCQCh. 25 - Ovaries produce gametes and hormones; these organs...Ch. 25 - Prob. 6MCQCh. 25 - The inner layer of skin is __________, whereas the...Ch. 25 - How does the integumentary system influence...Ch. 25 - Distinguish between the following. a. Organs and...Ch. 25 - Use the Internet to research cosmetic surgery....Ch. 25 - Prob. 3WIOCh. 25 - Explain how you use your organ systems (except...Ch. 25 - Describe how the circulatory system connects the...Ch. 25 - Prob. 6WIOCh. 25 - Prob. 7WIOCh. 25 - Describe at least one interaction between skin and...Ch. 25 - 1. What features distinguish the four types of...Ch. 25 - Prob. 2PITCh. 25 - Review the Survey the Landscape figure in the...
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- In______, 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_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_forwardBody temperature is homeostatically regulated around a set point. Given your knowledge of negative feedback and homeostatic control systems, predict whether narrowing or widening of the blood vessels of the skin will occur when a person exercises strenuously. (Hints: Muscle contraction generates heat. Narrowing of the vessels supplying an organ decreases blood flow through the organ, whereas vessel widening increases blood flow through the organ. The more warm blood flowing through the skin, the greater is the lossarrow_forward
- Why do you think there is a change in body temperature, color change and perspiration level? In what ways does your body attempt to maintain homeostasis?arrow_forwardBilly is visiting the mountains in Colorado, and the temperature is below freezing. Billy's skin cells sense his dropping body temperature. His muscle cells start contracting to produce shivering to warm him back up. Billy's skin cells are acting as what part of this homeostatic system?arrow_forwardWhy is putting on a coat not an example of homeostasis? What is an example of homeostasis if your body is cold?arrow_forward
- z uousənO In terms of homeostasis, what is the most likely response to an increase in environmental temperature? Blood vessel constriction "Goosebump" formation Producing Sweat shivering and muscle contractionarrow_forwardDuring a bacterial infection, the pathogen and the immune system send signals to the hypothalamus suggesting that temperature is set too low. In which of the following ways would the body respond? Sweating Breathing heavily Shivering Laying out splayed on the bedarrow_forwardDescribe what happens in an endotherm and an ectotherm when outside temperature gets cold, and what happens when it gets hot.arrow_forward
- After doing a balancing act, how can your body maintain homeostasis? What factors can cause the body's homeostasis to be disrupted?arrow_forwardA fever is an increase in body temperature above normal range. A fever causes metabolic changes that push the person's body temperature even higher. If body temperature rises above 45oc death occur because cellular proteins change shape and metabolism stops. Is a fever of positive or negative feedback system? Explainarrow_forwardDescribe the steps in the homeostatic feedback system activated to ensure normal body temperature is maintained when exposed to a hot external temperature (e.g., 42 degrees Celsius). Give typing answer with explanation and conclusionarrow_forward
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