First branchial arch: Overview

"The First arch IMPACTS!"
Most of the aspects associated with the first arch begin with the letter 'M' and the rest with I, P, A, C, T or S!
1. Name

• It is also known as the Mandibular arch.

2. Muscles

• Muscles of  Mastication (Masseter, Temporalis, medial & lateral Pterygoids), Mylohyoid, Anterior belly of digastric, Tensor tympani and Tensor palati are derived from the first arch.

3. Cartilage of first arch is called the  Meckel's cartilage

• It gives rise to Malleus & Incus, Sphenomandibular ligament & Anterior ligament of Malleus

4. Innervation.

• Mandibular nerve, Chorda tympani