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It shouldn't be surprising that the menu with the most amount of information in it is the one about our bodies. Here are some fun stats and facts about what makes us human.
PERCENTAGES:
•Water = 55-80%
•Bone = M @ 15%, F @ 12%
•Organ = (haven't found the answer to that one yet)
•Muscle = M @ 45%, F @ 35%
•Fat = M @ 15%, F @ 30%
NUMBERS:
•Bones = 206
•Muscles = 640-850 (300 skeletal)
•Organs = 78 (10-15 major)
FUEL:
•Basic element components of food...
-Carbon
-Hydrogen
-Oxygen
-Nitrogen
•Basic element components of fluids...
-Oxygen
-Hydrogen
MUSCLES:
•Contains Protein filaments Actin & Myosin for contraction changing shape & length
•Utilised for posture, movement (skeletal & organ) and protection
•Powered by Oxidation of Fats and Carbohydrates
-Anaerobic activity uses ATP
•Type I (Slow-Twitch, Red)...
-Dense with capillaries, mitochondria (site of biochemical respiration and energy production) & myoglobin (Iron & Oxygen binding Protein)
-Carries greater Oxygen for Aerobic activity using Fats & Carbs as fuel
•Type II (Fast-Twitch, White)...
-Rapid and powerful contraction matched by fatigue...Anaerobic
—Type IIb...Glycolytic...least dense in mitochondria & myoglobin but is major Fast-Twitch fibre
—Type IIa...medium levels of M & M (mmm M&Ms)
BODY PARTS & WATER:
•Male = 60-65%
•Female = 50-60%
•Perspiration = 95%
•Saliva = 95%
•Lungs = 86%
•Liver = 85%
•Kidneys = 83%
•Blood...55% of volume is Plasma...which is 92% water = 83%
•Brain = 75%
•Heart = 75%
•Muscle = 75%
PROTEIN:
•60-70% of bodily protein is muscle
•15-20% of body weight is protein
-Second to water as most abundant substance
ORGANS:
BRAIN:-
•Most energy demanding organ
-18% of BMR energy expenditure
-25% of total Glucose consumption
•Glucose only energy used
-Sourced from Liver
—Ketones utilised as energy if other forms not available to spare muscles
—If Liver depleted of Glycogen during Starvation Mode, brain releases Stress Hormones (Epinephrine & Cortisol) to convert muscle protein to Glucose
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