Gas Exchange: Humans Flashcards
1
Q
What is the thorax?
A
–>the chest
2
Q
What are all the structures in the thorax?
A
- ->ribs
- ->Intercostal muscles
- -> Diaphragm
- ->Trachea
- ->Bronchi
- ->Bronchioles
- ->Alveoli
- ->Pleural membranes
3
Q
What are the ribs?
A
- ->bone struct.
- ->PROTECTS
- ->internal organs
(e.g: lungs)
4
Q
What are the intercostal muscles?
A
- -> Muscles between ribs
- ->which cont. their movement;
- -> leading to inhal. exhal.
5
Q
What is the diaphragm?
A
- ->SHEET of conn. tissu.
- ->+ muscle at bott. thorax
6
Q
What is the trachea?
A
- ->WINDPIPE
- ->connects mouth + tissue
- ->2 lungs
- -> carry air from enviro. 2 lungs
7
Q
What are the Bronchi?
A
- ->TWO LARGE tubes
- ->branching out from trach.
8
Q
What are the Bronchioles?
A
- -> SMALL tubes
- ->branching out from bronchi
N.B: think of a tree, with the trunk, branches, twigs and leaves
9
Q
What are the alveoli?
A
- ->tiny AIR SACS
- -> where gas exchange take place
10
Q
Where does gas exchange take place?
A
–> in the alveoli
11
Q
What are the pleural membranes?
A
–>thin,moist membranes around lungs
12
Q
What is the function of the Bronchi?
A
–>Carries air to lungs
13
Q
What is the function of the bronchioles?
A
–> Carry air to aveoli
14
Q
What is the function of the ribs?
A
- ->protect
- ->+ventilate lungs
15
Q
What is the function of the diaphragm?
A
- ->changes volume of thorax
- ->2 allow inhalation + exhalation
- ->sep. thorax from
- ->abdomen
