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NWHSU Physiology 1 PhizQuiz 1 Review Questions and Answers (100% Pass)
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NWHSU Physiology 1 PhizQuiz 1 Review Questions and AnswersNWHSU Physiology 1 PhizQuiz 1 Review Questions and Answers (100% Pass) (100% Pass)

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  • October 29, 2024
  • 20
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • nwhsu physiology 1 phizquiz 1 review questions an

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NWHSU Physiology 1 PhizQuiz 1
Review Questions and Answers
(100% Pass)
The ability of the body to maintain a relatively constant internal environment

regardless environmental changes.


✓ Define homeostasis




Blood glucose level homeostasis uses the pancreas to secrete insulin and

glucagon to maintain level blood glucose levels.


✓ Give examples of homeostatic process




It contains a receptor, afferent pathway, a control center, an efferent

pathway, and finally an effector.


✓ What are the components of a feedback loop?




A negative feedback system has the body act to reverse the direction of

change. This tends to keep things constant. Because of this, it is the most

common homeostatic control mechanism. Positive feedback causes change

to occur in variable response changes that are variable even more in the

same direction. It does not result in homeostasis but in bringing about an

effective.

Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ Compare negative feedback control vs. positive feedback control




Negative feedback inhibition!


✓ Which type of control is most common in the body




Something that upsets the balance of homeostasis. Anything that represents a

deviation from some norm or steady state.


✓ Provide the definition & examples of a "stressor" as it applies to the

concept of homeostasis.




Cellular adaptation occurs if a cell is unable to maintain its original

homeostatic state. In those circumstances, it must draw upon its reserves and

adapt to the new environment. This is cellular adaption. Decline occurs when

the cell cannot adapt.


✓ Compare cellular adaptation vs. decline toward cellular dysfunction

and give examples.




Hypertrophy (cells increase in size), hyperplasia, atrophy, and metaplasia


✓ What are the four cellular adaptions?




Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

Glucose metabolism-insulin resistance -> Type 2 Diabetes, Thermoregulation,

and the Stress Response.


✓ What three examples of homeostatic imbalance were given in class?




Shunting blood to core, shivering, increasing epinephrine and

norepinephrine, increased thyroxine for elevating metabolism, and

increasing physical activity.


✓ How does the body regain homeostasis during hypothermia?




65%


✓ What percentage of human body is water.




Intracellular compartment and Extra cellular compartment. In the ECF you

have interstitial fluid (in the cell), intravascular fluid (plasma), and

cerebrospinal fluid.


✓ Body Fluid Compartments - What are the two fluid compartments

discussed in lecture?




ECF




Master01 | October, 2024/2025 | Latest update

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