Pharyngeal Branchial Arches Derivatives Mneomonic

This blog post is going to help you with pharyngeal or branchial arches mnemonics, don't forget to share the help with others.

Derivatives of Pharyngeal or Branchial Arches:-

Pharyngeal arches branchial derviatives mnemonic

First Pharyngeal Arch





Derivative of 1st Branchial Arch are a compilation of M and T:-

M-T

Muscles 

2M4T

Mastication muscles (Temporalis,Masseter,Pterygoid)
Mylohyoid
Tensor tympani
Tensor veli palatini
Tongue- anterior two third
digasTric muscle- anterior belly

Skeletal

4M2T

Maxilla
Malleus + incus
Meckel cartilage
sphenoMandibular ligament
Temporal bone- squamous part
zygomaTic

Nerve

MT

Mandibular division of Trigeminal nerve

Artery


Maxillary artery


Second Pharyngeal Arch


Derivative of 2nd Branchial Arch can be learnt as S and as:-

S

Muscles


Stapedius
Stylohyoid
Smile- muscles of facial expression
BAPP as-
Buccinator
Auricular muscles
Platysma
Posterior belly of digastric muscle

Skeletal


Stapes
Styloid process
Stylohyoid ligament
lesser cornua and upper half of body of hyoid
reichert's cartilage

Nerve


Seventh nerve (facial nerve)

Artery


Stapedial artery
hyoid artery


Third Pharyngeal Arch


Derivatives of 3rd Branchial Arch are like GlossoPharyngeus, that is, GP:-

GP

Muscles


styloPharyngeus

Skeletal


Greater cornea and lower half of hyoid

Nerve


GlossoPharyngeal nerve

Arteries


common carotid artery and internal carotid artery


Fourth Pharyngeal Arch


Derivatives of 4th Branchial Arch can be traced back to Thyroid:-

Muscle


cricoThyroid
pharyngeal constrictors
levator veli palatini

Skeletal


Thyroid cartilage
epiglottic cartilage

Nerve


superior laryngeal nerve

Artery


4th left- Aortic arch
4th right- Subclavian arch


Sixth Pharyngeal Arch


Derivative of 6th Branchial Arch can be traced back to Larynx as:-

Muscles


Larynx- all intrinsic muscles except cricothyroid

Skeletal


Larynx- all cartilages except thyroid (cricoid,corniculate,cuneiform and arytenoid)

Nerve


Laryngeal nerve- recurrent

Artery


6th left- Pulmonary artery and Ductus arteriosus
6th right- Pulmonary artery

This is a way to learn the derivatives of pharyngeal arches. But it's always better to understand things than to mug up.
-Learning nerve supply followed by derivatives is highly recommended because that will make your basics further strong.

Labels: , ,