

Sistem respirasi
Presentation
•
•
Practice Problem
•
Hard
Julia Astutik
FREE Resource
10 Slides • 0 Questions
1
SLIDESMANIA.COMSLIDESMANIA.COM
ORGAN PERNAFASAN
MANUSIA
2
SLIDESMANIA.COM
ORGAN PERNAFASAN & FUNGSINYA
• Menyaring debu dari udara
• Menyesuaikan suhu dan kelembaban
udara
Hidung
• Penghubung antara hidung dan paru-paru
• Menyaring udara yang masuk ke paru-
paru
Tenggorokan
3
SLIDESMANIA.COMSLIDESMANIA.COM
Proses pernafasan manusia
4
SLIDESMANIA.COM
• Percabangan dari trakea yang menuju paru-
paru kiri dan kanan
Bronkus
• Cabang-cabang dari bronkus
Bronkiolus
• Ujung bronkiolus sebagai tempat pertukaran
oksigen (O2) dan Karbondioksida (CO2)
Alveolus
PARU-PARU
ORGAN PERNAFASAN & FUNGSINYA
Alveolus
5
SLIDESMANIA.COMSLIDESMANIA.COM
Bagaimana proses saat
menghirup udara?
Proses Menghirup Udara
1. Udara masuk melalui hidung.
2. Udara disaring oleh lendir
dan rambut hidung.
3. Paru-paru mengembang dan
rongga dada membesar.
4. Gas oksigen diserap oleh
alveolus.
Udara masuk
melalui hidung
Paru-paru
mengembang
Rongga dada
membesar
6
SLIDESMANIA.COMSLIDESMANIA.COM
Bagaimana proses saat
menghembuskan udara?
Proses Menghembuskan
Udara
1. Paru-paru mengempis dan
rongga dada kembali ke
ukuran semula.
2. Udara keluar melalui saluran
pernapasan.
3. Udara yang dikeluarkan
mengandung gas karbon
dioksida dan uap air.
Udara keluar melalui
hidung
Paru-paru mengempis
kembali ke ukuran
semula
Rongga dada
kembali ke ukuran
semula
7
SLIDESMANIA.COMSLIDESMANIA.COM
8
SLIDESMANIA.COMSLIDESMANIA.COM
PERNAFASAN DADA
&
PERNAFASAN PERUT
9
Menghirup nafas pada
pernafasan dada
Menghembuskan nafas
pada pernafasan dada
Menghembuskan nafas
pada pernafasan perut
Menghirup nafas pada
pernafasan perut
Perhatikan
ilustrasi berikut
10
SLIDESMANIA.COMSLIDESMANIA.COM
SLIDESMANIA.COMSLIDESMANIA.COM
ORGAN PERNAFASAN
MANUSIA
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