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The respiratory Structures and Breathing Mechanism in Animals
10
diffusion : Movement of the respiratory gases between the respiratory surface and the external environment.
spiracles : A series of opening located on both sides of the thorax and abdomen of insects.
air sacs : Speed up the movement of gases to and from the insect's tissues.
gill arch : Support filaments in fish.
countercurrent exchange : Gaseous exchange mechanism of fish.
ventilation : Combined action of the mouth and operculum.
tracheal system : The respiratory system of insects is known as the ...............
skin : Gaseous exchange in frogs occurs through the lungs and .....................
bucco pharyngeal floor : It is strong muscular walls and is always moving upwards and downwards to inhale and exhale air through nostril.
tracheoles : Finer tubes that branch from tracheae and in direct contact with insect's tissues and organs.
The respiratory Structures and Breathing Mechanism in Animals
Across:3. | Gaseous exchange in frogs occurs through the lungs and ..................... | 6. | Speed up the movement of gases to and from the insect's tissues. |
| 9. | The respiratory system of insects is known as the ............... | 10. | Support filaments in fish. |
| | Down:1. | Combined action of the mouth and operculum. | 2. | Gaseous exchange mechanism of fish. | 4. | It is strong muscular walls and is always moving upwards and downwards to inhale and exhale air through nostril. |
| 5. | Finer tubes that branch from tracheae and in direct contact with insect's tissues and organs. | 7. | A series of opening located on both sides of the thorax and abdomen of insects. | 8. | Movement of the respiratory gases between the respiratory surface and the external environment. |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only
The respiratory Structures and Breathing Mechanism in Animals
Across:3. | Gaseous exchange in frogs occurs through the lungs and ..................... | 6. | Speed up the movement of gases to and from the insect's tissues. |
| 9. | The respiratory system of insects is known as the ............... | 10. | Support filaments in fish. |
| | Down:1. | Combined action of the mouth and operculum. | 2. | Gaseous exchange mechanism of fish. | 4. | It is strong muscular walls and is always moving upwards and downwards to inhale and exhale air through nostril. |
| 5. | Finer tubes that branch from tracheae and in direct contact with insect's tissues and organs. | 7. | A series of opening located on both sides of the thorax and abdomen of insects. | 8. | Movement of the respiratory gases between the respiratory surface and the external environment. |
| |
© 2013
PuzzleFast.com, Noncommercial Use Only