How the body functions in normal homeostatic processes.
(Explains the specific characteristics and mechanisms of the human body that make it a living being.)
What is a cell?
The basic living unit of the body.
What are extra/intrcellular fluid?
The two fluid compartments that our body are made up of.
How much of our body is made up of extracellular (outside the cell) fluid?
20% of our body
60% of adult human body is fluid 1/3 of this 60% is extracellular fluid
What ions make up extracellular fluid?
Large amounts of Na, Cl, HCO3, oxygen, glucose, fatty acids, amino acids.
Why are ions important in regards to cell?
Ions are the nutrient needed for cell life.
Where is Na found?
Extracellularly
Where is K found?
Intracellularly
Why is the Na/K pump important?
Na/K pump helps drive energy production in the cell. The ATP energy that is released/produced from the Na/K pump. That energy is then used to drive other reactions.
How much of the bodies fluids is intracellular? (The body is 60% fluid)
2/3 of the 60% or 40%
What is Intracellular Fluid made of?
Potassium, magnesium, phosphate
What happens when there is swelling in the body? (due to kidney failure, liver failure...)
Fluids usually shift from an intercellular to an extracellular location. (that's why the numbers of ions in the cells are important)
What's happening when the body temp gets to high?
The bodies homeostasis is getting out of balance.
What could the body do to try and maintain homeostasis when its temperature gets too high?
Sweat, shunt blood to give off heat.
What could the body do to try and maintain homeostasis when its temperature gets too low?
Shiver, Shunt blood to the core.
Where do the extracellular fluids originate from?
Respiratory System GI tract Liver Musculoskeletal System
What are the 3 major causes of edema (fluid in the body)?
Fluid is shifting from intracellular to extracellular third space. Or fluid is being produced.
What also becomes distorted when fluid shifts?
Electrolytes and ions
How is metabolic waste removed?
Lungs and kidneys
How do the lungs remove metabolic waste?
By breathing our CO2.
How do kidneys remove metabolic waste?
Through the GI tract?? and Colon??
How are most medications removed in the body?
Kidneys. (Then liver, then lungs.)
Name three functions that regulate body functions?
Nervous system, endocrine system and reproductive.
Name three control systems of the body?
->Regulation of arterial blood pressure with baroreceptors ->Regulation of oxygen and carbon dioxide concentration in ECF with CO2 level ->All electrolytes have a normal range in the body