Ch#14| Lec #20| VERTEBRATE BLOOD CIRCULATORY SYSTEM(Heart Of Amphibians)(FSc Bio part 1)@riffatjahan

Ch#14| Lec #20| VERTEBRATE BLOOD CIRCULATORY SYSTEM(Heart Of Amphibians)(FSc Bio part 1)‪@riffatjahan‬
Heart of Amphibians:
In amphians the heart is three chambered with regard to auricles and ventricles.
There are two auricles and one ventricle. In addition sinus venosus and truncus arteriosus are also present.
Sinus venosus receives de-oxygenated blood from two superior vena ose inferior vena cava from different parts of the body.
This blood passes to the right auricle.
The oxygenated blood from lungs is poured via pulmonary veins
into left auricle.
Both auricles contract simultaneously and blood is passed onto
the ventricle.
There is a complete mixing of oxygenated and deoxygenated blood
in the ventricle, when ventricle, wher ventricle contracts.
It pushes blood via truncus arteriosus, to tow carotids, two systemic, and two pulmocutaneous arches.
And If you like the video. Please like, share and subscribe channel. Thank you for watching my video. @riffatjahan
channel Link...
/ @rffatjahan

[@ChShaaz]

Mam next lecture kb upload ho ga?

[@ChShaaz]

Good to see you mam ❤

[@riffatjahan]

So Nice Of You Thanks Dear Stay Blessed😊