Chapter 10 Flashcards
Processes of digestion
1Digestion
- Absorption
- Elimination
Mechanical digestion
Mechanical digestion is where foods are physically broken apart into smaller pieces
Chemical digestion
chemicals produced by your body break large molecules into
smaller ones that your body can use.
Most chemicals involved in digestion are __________, substances that speed up reactions
Enzymes
Absorption
is the process by which nutrients pass through the lining of your digestive system into you blood
Particles that cannot be absorbed are turned into…..
Waste
Digestive organs
Mouth Pharynx Esophagus Stomach Small Intestine Large Intestine Liver Gallbladder Pancreas
Microorganisms are typically spread in one of three ways…
- Food is undercooked
- Raw food touches the cooked food
- People preparing food transfer the organisms onto their hands, countertops, or
utensils.
Excretion
is the process by which the body collects and removes wastes
Several organs in the body are involved in waste collection and removal
Liver
Lungs
Skin kidneys
Kidneys
produce urine by filtering urea and other wastes
Ureters
extend from each kidney and carry urine from the kidneys to the bladder
Bladder
is a saclike muscular organ that stores urine
Urethra
is the chanel that the urine travels to exit the body
Each kidney contains about a million ________, tiny filtering units that remove waste and produce urine
Nephrons
Blood enters the kidneys through smaller blood vessels until it reaches a cluster of tiny
blood vessels in a nephron called a ……..
glomerulus
Kidneys that are damaged from an injury, diabetes, uncontrolled high blood pressure, or other diseases may fail. This can be treated with ?
Dialysis
