
10.3 Mekanisme Denyutan Jantung
Quiz
•
Biology
•
10th Grade
•
Easy

Muhammad Nor
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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apakah jenis otot yang terdapat pada jantung?
Otot licin
Otot rangka
Otot kardium
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Apakah sifat otot kardium?
Miogenik
Elastik
Memendak
Memanjang
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apakah maksud jantung bersifat miogenik?
jantung mengecut tanpa perlu menerima isyarat impuls daripada sistem saraf
jantung mengecut dan mengendur tanpa perlu menerima isyarat impuls daripada sistem saraf
jantung mengendur tanpa perlu menerima isyarat impuls daripada sistem saraf
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Antara berikut yang manakah perentak jantung utama?
gentian Purkinje
nodus atrioventrikel
berkas His
nodus sinoatrium
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apakah urutan penegcutan otot jantung yang betul?
W-Impuls elektrik merebak dari bahagian apeks jantung ke seluruh dinding ventrikel. Akibatnya, ventrikel mengecut untuk mengepam darah keluar ke peparu dan badan
X-Nodus sinoatrium (nodus SA) menjana impuls elektrik.
Y-Impuls elektrik sampai ke nodus atrioventrikel. Impuls elektrik merebak melalui berkas His, dan gentian Purkinje sehinggalah ke apeks jantung
Z-Impuls elektrik merebak dengan cepat dalam kedua-dua atrium, menyebabkan atrium mengecut secara serentak. Pengecutan atrium membantu mengepam darah ke dalam ventrikel.
X,Z,Y,W
W,X,Y,Z
Z,Y,X,W
W,Y,Z,X
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Apakah bunyi yang dihasilkan apabila penutupan injap berlaku?
lab-dab
lub-dub
dub-lub
dab-lab
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bagaimanakah darah mengalir menentang graviti?
Secara semula jadi
Pengecutan otot rangka di sekeliling vena
Pengenduran otot rangka di sekeliling vena
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