GAS EXCHANGE- HUMANS Flashcards
ALVEOLI CAARRY OUT (…)
GAS EXCHANGE IN THE BODY
THE LUNGS CONTAIN MILLIONS AND MILLIONS OF LITTLE AIR SACS CALLED (…) WHERE (…) HAPPENS
ALVEOLI/GAS EXCHANGE
THE BLOOD PASSING NEXT TO THE ALVEOLI HAS JUST TO THE LUNGS FROM THE REST OF THE BODY SO IT CONTAINS (…)
LOTS OF CARBON DIOXIDE AND VERY LITTLE OXYGEN
OXYGEN DIFFUSES OUT (…) (HIGH CONCENTRATION) INTO (…) (LOW CONCENTRATION)
OF THE ALVEOLUS/THE BLOOD
(…) DIFFUSES OUT OF THE BLOOD (HIGH CONCENTRATION) INTO THE (…) (LOW CONCETRATION) TO BE BREATHED OUT
CARBON DIOXIDE/ALVEOLUS
WHEN THE BLOOD REACHES BODY CELLS, OXYGEN IS RELEASED FROM THE (…) WHERE THERE IS A HIGH CONCENTRATION AND DIFFUSES INTO THE (…) WHERE THERE IS A LOW CONCENTRATION
RED BLOOD CELLS/BODY CELLS
(…) DIFFUSES OUT OF THE BODY CELLS (WHERE THERE IS A HIGH CONCENTRATION) INTO THE BLOOD (WHERE THERE IS A LOW CONCENTRATION) ITS THEN CARRIED BACK INTO THE LUNGS
CARBON DIOXIDE
SMOKING CAN SEVERLY AFFECT YOUR (…) AND (…)
LUNGS AND CIRCULATORY SYSTEM
SMOKING DAMAGES THE WALLS INSIDE THE ALVEOLI…
RECUCING THE SURFACE AREA FOR GAS EXCHANGE AND LEADING TO DISEASES LIKE EMPHYSEMA
THE TAR IN CIGARETTES DAMAGES THE CILIA (LITTLE HAIRS) IN YOUR LUNGS AND TRACHEA…
THESE HAIRS, ALONG WITH MUCUS, CATCH A LOAD OF DUST AND BACTERIA BEFORE THEY REACH THE LUNGS. CILIA ALSO HELP TO KEEP THE TRACHEA CLEAR BY SWEEPING MUCUS BACK TOWARDS THE MOUTH. WHEN THESE CILIA ARE DAMAGES, CHEST INFECTIONS ARE MORE LIKELY
TAR ALSO IRRITATES THE BRONCHI AND THE BRONCHIOLES ENCOURAGING…
MUCUS TO BE PRODUCED WHICH CANT BE CLEARED VERY WELL BY DAMAGES CILIA- THIS CAUSES SMOKER COUGH AND CHRONIC BRONCHITIS
THE CARBON MONOXIDE IN CIGARETTES SMOKE REDUCES…
THE AMOUNT OF OXYGEN THE BLOOD CAN CARRY SO HEART RATE INCREASES WHICH LEADS TO AN INCREASE IN BLOOD PRESSURE- HIGH BLOOD PRESSURE DAMAGES THE ARTERY WALLS, MAKING THE FORMATION OF BLOOD CLOTS AND THIS INCREASES THE RISK OF CORONARY HEART DISEASE
TOBACCO SMOKE ALSO CONTAINS…
CARCINOGENS- CHEMICALS THAT CAN LEAD TO CANCER
