The muscles of facial expression can be divided into four major groups. These are:
Orbital
Nasal
Oral
Scalp
As you add muscles to the face, try to make your facial muscles function as the added muscle.
The orbital group consists of the following:
The orbicularis oculi has two components. These are
The orbicularis oculi palpebral component which closes the eye gently. This muscle is not indexed on our cadaver
The nasal group consists of the following:
The nasalis alar. The nasalis alar is the part of the nasalis that opens the nostril. This muscle is not indexed on our cadaver
The oral group consists of the following:
Now add the following muscles:
Add the levator labii superiorus alaque nasi which raises the upper lip and opens the nostril
Add the levator anguli oris which raises the corner of the mouth and helps to form a nasolabial furrow
Normally there is a buccal fat pad between the buccinator and the other muscle layers of the face and jaw
Using the Rotate and Skin tools, rotate the skull and add skin to appreciate the addition of the fat pad to the shape of the face of the cadaver
The scalp is composed of only one muscle that has two bellies and is mostly connective tissue
Begin with the occipitofrontalis frontal belly, which wrinkles the forehead and raises the eyebrows
Unfortunately, this cadaver cannot wiggle his ears by using the anterior, posterior or superior auricular muscles, because they are not listed in the index
VH Dissector steps modified for Drexel Dissector by Dr. Haviva Goldman from original website activity created by Jeffrey Fahl, MD, Kyle Petersen, PhD, Richard Drake, PhD, Alesha Petitt, MA, Claira Ralston, MS and Kim Price, MA and modified by Jeffrey Fahl, MD, Michael Smith, PhD, Albany Medical College.