Ventricle of heart in frog. Opens in to Portal artery Sinuse venosusConus arteriosus Systemic Aorta
Question
Ventricle of heart in frog. Opens in to Portal artery Sinuse venosusConus arteriosus Systemic Aorta
Solution
The ventricle of the heart in a frog is connected to several important structures. Let's break it down step by step:
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The ventricle opens into the portal artery. This artery is responsible for carrying oxygenated blood to the various organs and tissues of the frog's body.
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From the portal artery, the blood flows into the sinuse venosus. This structure acts as a collecting chamber for deoxygenated blood returning from the body before it enters the heart.
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Next, the blood passes through the conus arteriosus. This is a muscular tube that helps regulate blood flow and directs it towards the systemic aorta.
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Finally, the blood is pumped into the systemic aorta. The systemic aorta is the main artery that carries oxygenated blood to the rest of the frog's body, supplying it with the necessary nutrients and oxygen.
In summary, the ventricle of the frog's heart opens into the portal artery, which leads to the sinuse venosus. From there, the blood passes through the conus arteriosus and is pumped into the systemic aorta, supplying oxygenated blood to the body.
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Chambers of the heart RIGHT ATRIUM • general features: thin-walled chamber that lies superior to the right ventricle; receives blood from the systemic blood circuit; • orifice of the superior vena cava: located in the superior region of the right atrium; • orifice of the inferior vena cava: located in the inferior region of the right atrium; backflow of blood is prevented by the presence of the Eustachian valve; • auricle of the right atrium: ear-shaped pouch/extension of the right atrium; projects to the left from the root of the superior vena cava; • pectinate muscles: also called musculi pectinati; parallel muscular ridges on the internal wall of the majority of the right atrium and the right auricle; • interatrial septum: partition between the ___________________________ and the ________________________________; • fossa ovalis: shallow depression in the interatrial septum; remnant of the foetal _________________________________; • coronary sinus opening: located internally in the wall of the right atrium; lies between the orifice of the inferior vena cava and the right atrioventricular opening; receives all blood draining from the heart itself; protected by a semilunar fold of the endothelium of the heart called the coronary valve
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