Study Combined Science notes on Gaseous exchange and respiration for Secondary. Useful for revision, homework, and exam preparation in Zimbabwe.
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This is the Combined Science notes. It is a free notes for revision.
Combined science: Gaseous exchange and respiration The human respiratory system Parts of the respiratory system STRUCTURE | DESCRIPTION RIBS | BONE STRUCTURE THAT PROTECTS INTERNAL ORGANS SUCH AS THE LUNGS INTERCOSTAL MUSCLE | MUSCLES BETWEEN THE RIBS WHICH CONTROL THEIR MOVEMENT CAUSING INHALATION AND EXHALATION DIAPHRAGM | SHEET OF CONNECTIVE TISSUE AND MUSCLE AT THE BOTTOM OF THE THORAX THAT HELPS CHANGE THE VOLUME OF THE THORAX TO ALLOW INHALATION AND EXHALATION TRACHEA | WINDPIPE THAT CONNECTS THE MOUTH AND NOSE TO THE LUNGS LARYNX | ALSO KNOWN AS THE VOICE BOX, WHEN AIR PASSES ACROSS HERE WE ARE ABLE TO MAKE SOUNDS