Snap & Solve (Biology)

Chap 19 Transport System

 
Picture of 1M1S09a NAZURAH  BINTI HAMZAH PST - Modul I
Re: Chap 19 Transport System
by 1M1S09a NAZURAH BINTI HAMZAH PST - Modul I - Friday, 16 March 2018, 11:32 AM
 

'lub'

Atrioventricular valve close and produce 'lub' sound as the blood pressure in ventricle is higher than atria. 

'dup'

Semilunar valves close and produce 'dup' sound as the blood pressure in the aorta and pulmonary artery is also higher than blood pressure in ventricles.