Science

Front 1

alveolus















in vertebrates a chamber at the back of the mouth leading to the esophagus; in land vertebrates, the nasal cavity joins and airalso flows through the pharynx to the trachea; in water vertebrates water flows through the pharynx to pass over the gills

pulmonary : having to do with the lungs

respiration : physical respiration is the process by which multicellular animals bring oxygen either to the cells of the body or to the circulatory system to be distributed in the blood to the cells of the body; cellular respiration is a biochemical process by which organic molecules are broken down to inorganic molecules and the energy is captured in a usable form

respiratory system : a system specialized for bringing oxygen into an animal´s body, either directly to the cells or to the circulatory system to be distributed to the cells, and for removing carbon dioxide, either directly from the vicinity of the cells or from the circulatory system

spiracles : the openings in the body of an arthropod that has a tracheal system, including insects, through which air enters the trachaea of its respiratory system

tracheae : main tubes through which air flows in respiratory systems of land animals; in insects, tracheae lead from the spiracles to tracheoles; in land vertebrates, a trachea leads from the pharynx to two bronchi

tracheole : the smallest type of tube in the respiratory system of most arthropods, including insects, which brings air close to the cells to provide them with oxygen and to remove carbon dioxide from them

veins : vessels that carry blood toward the heart

ventricles ( VEN-trih-kuhl ) : a chamber of a heart that receives blood coming from an atrium and pumps the blood out of the heart

Back 1

: in the respiratory system of land vertebrates, one of many small sacs in the lungs at the end of the pathway for air, surrounded by capillaries where gas exchange takes place between the air in the lungs and the blood in the circulatory system

Front 2

aorta

Back 2

in a vertebrate circulatory system, the largest artery, the first one coming from the heart

Front 3

arteries

Back 3

vessels that carry blood away from the hear

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atrium

Back 4

a chamber of a heart that receives blood coming into the heart and pumps it to a ventricle

Front 5

blood

Back 5

a fluid material in circulatory systems of multicellular animals that carries material from one place to another in the animal to help supply the cells what they need for life and to remove waste material from the cells

Front 6

bronchiole

Back 6

in the respiratory system of land vertebrates, a branch of a bronchus or of a larger bronchiole, leading to smaller bronchioles or to the alveoli

Front 7

bronchus

Back 7

in the respiratory system of land vertebrates, one of two tubes branching off the trachea, each leading to the bronchioles in one of the two lungs

Front 8

capillaries

Back 8

the smallest, thinnest vessels in a closed circulatory system, through which materials transported by the blood can flow between the blood and the fluid bathing the cells

Front 9

circulatory system

Back 9

a system that is specialized for moving essential materials to the cells of the body of a multicellular animal and for removing waste materials from them; contains blood as the medium in which materials are moved, vessels through which the blood moves for at least part of its course, and one or more hearts for pumping the blood to circulate through the system

Front 10

hemocoel

Back 10

a cavity in the body of invertebrate animals that contains the blood that bathes the animal´s tissues directly, as part of an open circulatory system

Front 11

pulmonary

Back 11

having to do with the lungs

Front 12

respiration

Back 12

physical respiration is the process by which multicellular animals bring oxygen either to the cells of the body or to the circulatory system to be distributed in the blood to the cells of the body; cellular respiration is a biochemical process by which organic molecules are broken down to inorganic molecules and the energy is captured in a usable form

Front 13

respiratory system

Back 13

a system specialized for bringing oxygen into an animal´s body, either directly to the cells or to the circulatory system to be distributed to the cells, and for removing carbon dioxide, either directly from the vicinity of the cells or from the circulatory system

Front 14

spiracles

Back 14

the openings in the body of an arthropod that has a tracheal system, including insects, through which air enters the trachaea of its respiratory system

Front 15

tracheae

Back 15

main tubes through which air flows in respiratory systems of land animals; in insects, tracheae lead from the spiracles to tracheoles; in land vertebrates, a trachea leads from the pharynx to two bronchi

Front 16

tracheole

Back 16

the smallest type of tube in the respiratory system of most arthropods, including insects, which brings air close to the cells to provide them with oxygen and to remove carbon dioxide from them

Front 17

veins

Back 17

vessels that carry blood toward the heart

Front 18

ventricles

Back 18

a chamber of a heart that receives blood coming from an atrium and pumps the blood out of the heart