Fish Hearr

Question 1

What is the heart like in a fish

Answer 1

It looks like the early stages of a mammalian heart development embryologivally

Question 2

What are the five zones of the primitive tube

Answer 2

Arterial trunk/truncus arteriosus

Bulbus cordis

Ventricle – B and V – primitive ventricle

Atrium

Sinus venosus

Question 3

How does the blood circulation of a fish work

Answer 3

Atrium (force muscle contraction)
Ventricle
Artieries
Sinuous vein

Question 4

How are Anurans (frogs) hearts different to fish

Answer 4

Two atria