APK2105C CH 1 – Flashcards
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T/F: Connective tissue forms both endocrine and exocrine glands
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False; Epithelial forms both endocrine and exocrine glands
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Which protein in the body provides TENSILE strength to resist stretching?
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Collagen
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What is the primary mechanism for maintaining homeostasis?
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Negative Feedback
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The integration center for homeostatic control of blood glucose is the __________.
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Pancreas
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In a negative feedback loop, glands and muscles are __________.
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Effectors
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Intracellular fluid has a __________ concentration of proteins and potassium, as compared to extracellular fluid.
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Higher
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The functions of epithelial cells
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Acting as a physical barrier to the movement of molecules & protection
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Collagen is a protein found in which type of tissue?
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Connective
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The drop in blood pressure that can occur when a person stands up too quickly is a(n) _____
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Error Signal
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Negative feedback _____.
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moves a physiological variable back toward the set point
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T/F: All muscle tissue is under voluntary control.
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False
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T/F: Connective tissue consists of cells dispersed in a noncellular material called the matrix.
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True
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A mechanism that "corrects" the deviation of a physiological variable from its set point is called _____.
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Negative feedback
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Both intracellular and extracellular fluids contain _____ , ______ & _______.
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Proteins, sodium & potassium
(The intracellular and extracellular fluids contain many of the same types of ions and molecules, such as proteins, but in different proportions.)
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Most of the body's water is contained in the __________.
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ICF
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Extracellular fluid is equal to __________.
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Plasma + ISF
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A positive feedback mechanism is prevented from spiraling out of control by __________.
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1. A factor that removes the stimulus
2. A factor that limits the system's ability to respond to the stimulus
3. A factor that stops the feedback loop
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Negative feedback __________.
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moves a physiological variable back toward the set point
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In diabetes mellitus, glucose appears in the urine because the kidney has failed to __________ it.
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Reabsorb
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T/F: Red blood cells are part of the extracellular fluid compartment.
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False; Red blood cells circulate in the extracellular fluid, but because they are cells, they are not considered to be actually part of this fluid compartment.
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The sensors that regulate body temperature during homeostasis are called __________.
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chemoreceptors
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The spleen is an organ that is part of the __________ system.
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Immune
