Digestive System Flashcards
What is the digestive system ?
The body’s food processing system
Food passes through the organs in order
Mouth Esophagus Stomach Small intestine Large intestine Rectum Anus
Where do u find the vili?
In the small intestine
The nutrients in food is absorbed inor the blood stream from?
Small intestine
What happened to the unusable materials?
It goes into the large intestine to await disposal
The lining of the stomach is protected by?
Mucus
T/F?
herbivores have large canines
False
What is the chemical that speeds up chemical digestion?
Enzymes
What’s important activity takes place in the lungs
Oxygen is exchanged for carbondioxide
What’s the purpose or little hairs in the nose
To keep dust out of the lungs
What is the diaphragm
A sheet of muscle beneath the lungs that is essential for breathing
Fat
Lipase
Carbohydrates
Amylase
Protein
Protease
What organ pumps blood throughout the body
The heart
What’s the function of the blood vessels and capillaries
They carry blood to all parts of the body
Blood circulation
Right atrium Right ventricle Lungs Left atrium Left ventricle Body
What’s responsible for healing cuts
Platelets
What part has the strong muscular wall
Right ventricle
What contains oxygenated blood in an adult human
Pulmonary vein
What does the left side of of the heart receive
It receives oxygenated blood from the lungs
What are the valves that prevent blood from flowing backward
All blood vessels
What does oxygenated blood leaves the human heart via what?
The aorta
What happens when an enzymes becomes denatured?
It no longer functions
Saliva
To break down the foods
Epiglottis
A flap of skin that stops food from going down your lungs
Gall bladder
Stores biles
Stomach
Digests most food
Liver
Makes bile to break down fats
Pancreas
Produces enzymes and hormones
Large intestine
Extracts water from food that cannot be chemically digested
What’s a persistalsis
Muscles of the esophagus contract in waves and push the food (bolus) into the stomach
2 things that blood does
Takes waste products away from body cells
Delivers nutrients to the body cells
+nutrients
What are 2 types of blood cells
White
Red
What colour is the liquid part of blood
Clear
What is the liquid part of blood called
Plasma
What do platelets do
Help seal a wound with blood clots
The colour of oxygenated blood
Red
The colour of deoxygenated blood
Red
What does the heart do
Pumps oxygenated blood around the body and receives deoxygenated blood from the body, pumps the deoxygenated blood from lungs
How many chambers are there in the human heart
4
What are the names of the heart Chambers
Left ventricle right ventricle right atrium left atrium
What does valves do in the heart
Stop blood flowing backwards
What side of the heart is larger
explain
Left because it pumps blood around the body
Which side of the heart pumps blood to lungs
Right
What size is the human heart
1 fist
Where does the pulmonary system carry blood to and from
Lungs
What is the function of the systemic system
It carries oxygen and blood away from the heart to the body
What is the name of the vessel that carries blood away from the heart
Aorta
Name two differences between the arteries and veins
1 A- carries oxygenated blood to the body
2 V-carries deoxygenated blood to the heart
Where do you find capillaries
Where veins and arteries are
What do you capillaries do
Allows the nutrients in the oxygen from the blood to enter cells
Explain why the blood goes to the heart twice on this journey around the body
Body to lungs
Lungs to body
Which two systems work together to provide oxygen to your cells and get rid of carbon dioxide
Respiratory system and circulatory system
Which to systems work together to process and transport essential nutrients to your cells
Digestive system and circulatory system
Which two systems work together to provide your cells with the ingredients needed to produce energy
Digestive system, respiratory system and circulatory system
Explain where in the body you would find the valves shown in the diagram. What is their function?
Arteries & veins to stop blood flowing backwards
Cellular respiration
Glucose oxygen carbon dioxide water energy
A waste product
Carbon dioxide
Processed by the digestive system
Use for movement, growth and repair
