Exam 1 Lecture 1 Flashcards
(49 cards)
Factors in maintaining cellular homeostasis
cell volume, electrolyte balance, pH, cell metabolism, cell transport
Signs & symptoms - which is objective?
Signs
Signs & symptoms - which is subjective?
Symptoms
Iatrogenic cause of disease is ?
From medical care - extrinsic
Which of the following are signs?
BP, fever, fatigue, pain
blood pressure
What percentage of weight is made up of total body water?
60%
Which of the following are maladaptive responses of the cell to stress? Hyperplasia Dysplasia Hypertrophy Metaplasia
Dysplasia
Increased ADH results in water ______
retention
Increased ADH is a result of ____ plasma osmolarity
Increased
H2O is regulated by?
ADH/thirst system
Osmolyte balance is regulated by?
Systematically: RAAS - renin/angiotensin
Intracellularly: Na/K ATPase Pumps
Major osmolyte in extracellular space?
Na
Major osmolyte in intracellular space?
K
Hypotonic solutions result in ____ of cell
Swelling
Solution is diluted
Hypertonic solutions result in ____ of cell
Shrinkage
Solution is concentrated
3% NS administered to a patient. Cells will Swell or Shrink?
Shrink
1/2NS is administered to patient. Cells will swell or shrink?
Swell
Increased plasma osmolarity results in _____ ADH
increased
Decreased blood volume results in ___ which stimulates _____ and releases ______
Decreased BP, baroreceptors, renin
Renin stimulates ____, which stimulates _____, therefore releasing ____
Angiotensin I, Angiotensin II, Aldosterone
Aldosterone causes kidneys to conserve _____ and waste _____
Conserve Sodium
Waste Potassium
RAAS is controlled by?
Blood volume and blood pressure
Aldosterone ultimately causes what?
Sodium retention, potassium loss
If ATPase pumps fail, what would happen?
Sodium accumulates in cell, cell will swell