Respiration Flashcards
1
Q
Earthworms
A
- Breath through their skin
- gas exchange happens on the skin surface
2
Q
Insects (grasshopper)
A
- Breathe through holes called spiracles
3
Q
Fish
A
- Have gills
- Gas exchange happens in gill filaments
4
Q
Frogs
A
Breathe using
- lungs
- skin
- glottis (membrane in cheeks)
5
Q
Birds
A
- Have lungs and air sacs
6
Q
Mammals
A
- Have lungs and trachea
7
Q
Nasal passages
A
Filters air and humidifies it by adding moisture from its mucous lining
8
Q
Oral Cavity
A
- Mostly for food and liquid intake
- Can be used for breathing if necessary
9
Q
Nasopharynx
A
Space connecting nasal and oral cavities
10
Q
Epiglottis
A
Covers the trachea while swallowing food or liquid
11
Q
Larynx
A
- Surrounds trachea to channel air
- Creates noise (contains vocal chords)
12
Q
Trachea
A
Channels air to the lungs
13
Q
Bronchus
(plural: bronchi)
A
- One of two branches leading to the lungs
- Channels air
14
Q
Bronchiole
A
Tiny branches that lead air into the alveoli
15
Q
Alveoli
(singular: Alveolus)
A
Provides a thin but wide surface area for gas exchange with surrounding blood vessels
16
Q
Diaphragm
A
Contracts and relaxes to allow air to move through the lungs
17
Q
Medulla Oblongata
A
Controls breathing, heart rate and digestion
18
Q
Inhalation/inspiration
A
- Rib cage moves down
- diaphragm contracts
- pressure in lungs goes down
- volume of thoracic cavity goes up
19
Q
exhalation/expiration
A
- Rib cage moves up
- diaphragm relaxes
- pressure in lungs goes up
- volume of thoracic cavity goes down
