GCSE Biology - The heart and blood vessels (Topic 2: Organisation)
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/7
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
8 Terms
How are the lungs adapted for gaseous exchange?
They have many alveoli which therefore increases the surface area
They also have a capillary network meaning they have a rich blood supply therefore a varied concentration gradient
The diffusion pathway is short due to the 1 cell layer between the alveoli and bloodsupply
(fix this one, crosschekc with bio notes in exercise book [the list that miss said THIS IS THE MARKSCHEME])
What is the heart?
An organ that pumps blood around the body (1) in a double circulatory system (1).
Right ventricle pumps blood to...
To the lungs through the pulmonary artery
Left ventricle pumps blood to...
around the rest of the body through the aorta
What blood does the aorta carry?
oxygenated away
What blood does the vena cava carry?
deoxygenated into
What blood does the pulmonary artery carry?
to the lungs, deoxygenated
Waht blood does the pulmonary vein carry?
into heart, oxygenated
Note 
Flashcards (36)