Respiratory System Flashcards
1
Q
Passage of Air
A
Nose and Mouth → Pharnyx → Trachea “windpipe” → Bronchi and Bronchioles → Lungs and Alveoli → Bronchi and Bronchioles → …
2
Q
Nasal Cavity
A
- Brings air into respiratory system
- Hairs in nostril help filter air we breathe
- Moistens and warms air that comes into lungs
3
Q
Larynx “voice box”
A
- Air passes through larynx
- Vocal cords vibrate, creating sound of voice
4
Q
Vocal cord nodules
A
Growths on the vocal cords (from constant straining of voices
5
Q
Trachea “windpipe”
A
Tube connecting pharynx with lungs
6
Q
Cilia (found in Trachea)
A
Use beating motion (moving back and forth) to push mucus and particles out of respiratory system (exhaled or digested).
7
Q
Bronchi and Bronchioles
A
- Branches of trachea bringing air deeper into lungs
- Left and right bronchi → bronchioles are smaller branches
8
Q
Alveoli
A
Spherical hollow cavities increasing surface area for gas exchange
9
Q
Lungs
A
- Made of tiny air sacs called alveoli
- Location where oxygen exchanged w/ carbon dioxide
10
Q
Capillaries
A
Tiny blood vessels that line alveoli to make gas exchange possible
11
Q
Diaphragm
A
Dome-shaped muscle under ribs helping inhale and exhale
12
Q
Inhaling
A
- Diaphragm is flattened(contracted)
- Volume increases
13
Q
Gas exchange
A
- Carbon dioxide moves out of red blood cell into alveoli
- Oxygen moves into red blood cell from alveoli
14
Q
Exhaling
A
- Diaphragm is dome-shaped (relaxed)
- Volume decreases
15
Q
Larger lung volumes
A
- Males
- Taller people
- Non-smokers
- Athletes
