The digestion process starts in ...............................
mouth
..................... and .................... can't pass through kidneys' nephrons
blood cells and proteins
The endocrine system consists of ................... that secrete ....................
glands - hormones
The ................. allow the movement of the bones of the skeletal system
skeletal muscles
If you face a dangerous situation, the breathing rate .........................
increases
...................... transports the nutrients, gases, and hormones to all body cells
The circulatory system
The organ that absorbs most of water from the undigested food is ..............
large intestine
If the heartbeats increase , the blood pressure ........................
increases
If the diaphragm contracts, the size of the chest ................., and ................ enters the lungs
increases - oxygen gas
When your heartbeats and breathing rate increase, your body sends more ..................... blood to the muscles, brain, and other organs to face the danger
oxygenated
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