Digestive, Circulatory, Redporatory Flashcards
What is digestion
The breaking down of food into smaller nutrient molecules the body can use
What is chemical digestion
Chemicals produced by the body breaks food down into their smaller chemical building blocks
When your body gets ready to eat, it will increase the production of saliva, or_____
Spit
What is mucus
A sick slippery substance that makes it easy to swallow
Food is moved down the Esau for guests by waves of muscle contractions called
Peristalsis
What does hydrochloric acid do
Health break down food as well as killing many bacteria that you swallow
Almost all________digestion and__________of nutrients takes place in the small intestine
Chemical, absorption
What is the largest organ in the body
Liver
Liver is like an extremely busy chemical
Factory
Deliver produces____, A substance that breaks down fat particles
Bile
Where is bile stored
Gallbladder
The pancreas produces_______that then breaks down the fat chemically
Enzymes
What are villi
Millions of tiny finger shaped structures filled with tiny blood vessels
The large intestine contains________that feed on the material passing through
Bacteria
As the remaining material moves through the large intestine,_____is absorbed into the bloodstream
Water
The large intestine inns in a short to call the______where the remaining waste material, feces, is compressed into a solid form
Rectum
What are the jobs of the circulatory system
Deliver needed materials, removing waste products, fighting disease
What is a valve
It prevents backflow and separates right atrium from right ventricle
What are the key components of the circulatory system
The heart, the blood vessels, and blood
Two upper chambers called______, which receive blood into the heart
Atrium
To lower chambers called________, which pump blood out of the heart
Ventricle
What is a valve
A flap of tissue that prevents blood from flowing backward
Blood is pumped from where into the long
The right ventricle
What do arteries do
Carry blood away from the heart either to the lungs or body
What is plasma
The liquid part of blood
What are red blood cells
The part that takes up oxygen for transport
What are white blood cells
The soldiers of the blood that attack micro organisms that enter the body
What are platelets
Cell fragments
What are the primary jobs of the respiratory system
Taking in oxygen, removing carbon dioxide and water
Cells in nasal cavities have_____, tiny hairlike structures that sweet mucus down into your throat
Cilia
What are alveoli
Tiny sacs of lung tissue specialized for the movement of gases between air and blood
As bronchi move into the lungs they divided into smaller and smaller tubes in a pattern that resembles branches of a
Tree
What are lungs
Saclike organ that inhale and exhale air. The main organs of the respiratory system
What is the diaphragm
I domes shaped muscle that plays an important role in breathing
What is breathing
Movement of air into and out of lungs
What are the three main functions of the digestive system
Digestion, absorption, and elimination
