Answer
Verified
370.8k+ views
Hint: Frog belongs to class Amphibia of Kingdom Animalia. It has a three-chambered heart. It is a muscular organ situated in between the two lungs and is located in the anterior part of the body cavity.
Complete answer: In frogs, the truncus arteriosus is a tube-shaped structure that arises from the right side of the ventricle. The walls of these structures are muscular and thick. At the anterior end of these structures, there is a division into two trunks. Out of these, the elongated portion that remains undivided is the phylangium, whereas the end part of the divided trunk is known as the synangium. These structures are separated by a proximal row of semilunar valves. The truncus arteriosus is one of the two additional chambers present in the frog’s heart.
A. Spiral valves in amphibians are present within the truncus arteriosus. It functions differently for oxygenated and deoxygenated blood. It is not the point of separation of synangium and phylangium.
B. The distal row of semilunar valves is not involved in the separation of synangium and phylangium in amphibians.
D. The secondary septum is not the structure involved in the separation of synangium and phylangium. Therefore, the correct answer is option C.
Note: Other than the two atria and one ventricle and truncus arteriosus, the additional chamber in a frog’s heart is the sinus venosus. It is located on the dorsal heart surface. It is a wide chamber that opens to the right auricle.
Complete answer: In frogs, the truncus arteriosus is a tube-shaped structure that arises from the right side of the ventricle. The walls of these structures are muscular and thick. At the anterior end of these structures, there is a division into two trunks. Out of these, the elongated portion that remains undivided is the phylangium, whereas the end part of the divided trunk is known as the synangium. These structures are separated by a proximal row of semilunar valves. The truncus arteriosus is one of the two additional chambers present in the frog’s heart.
A. Spiral valves in amphibians are present within the truncus arteriosus. It functions differently for oxygenated and deoxygenated blood. It is not the point of separation of synangium and phylangium.
B. The distal row of semilunar valves is not involved in the separation of synangium and phylangium in amphibians.
D. The secondary septum is not the structure involved in the separation of synangium and phylangium. Therefore, the correct answer is option C.
Note: Other than the two atria and one ventricle and truncus arteriosus, the additional chamber in a frog’s heart is the sinus venosus. It is located on the dorsal heart surface. It is a wide chamber that opens to the right auricle.
Recently Updated Pages
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
What are the possible quantum number for the last outermost class 11 chemistry CBSE
Is C2 paramagnetic or diamagnetic class 11 chemistry CBSE
What happens when entropy reaches maximum class 11 chemistry JEE_Main
Calculate the volume occupied by 88 gram of CO2 at class 11 chemistry CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
What is BLO What is the full form of BLO class 8 social science CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Select the word that is correctly spelled a Twelveth class 10 english CBSE
How do you solve x2 11x + 28 0 using the quadratic class 10 maths CBSE
Fill the blanks with proper collective nouns 1 A of class 10 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE