Biology, asked by misterx55, 1 year ago

). Number of aortic arches in cartilaginous fishes are:​

Answers

Answered by Anonymous
1

Answer:

There are six aortic arches in cartilaginous fishes.

Explanation:

➡️ The 1st branchial arch is innervated by the trigeminal nerve (V).

➡️ The 2nd branchial arch is innervated by the facial nerve (VII).

➡️ The 3rd branchial arch is innervated by the glossopharyngeal nerve (IX).

➡️ The 4th branchial arch is innervated by the vagus nerve (X).

➡️ The 6th branchial arch is innervated by the vagus nerve (X).

especial point to remember ⤵️

✴️✴️ In cartilaginous fish, six branchial arches develop and form the beginnings of the gills and the viscero-cranium. In mammals, there are five numbered branchial arches denoted 1, 2, 3, 4 and 6. The fifth arch does not develop. ✴️✴️.

___hope it help

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