Ecorche Brachium

Here's where we are so far with the life sized Ecorche. Presently we're examining the mechanisms inherant in and around the Brachium.... the arm and shoulder apparatus as it attaches to the torso.

Rhomboid and Serratus Posterior

From today's class.... Rhomboid and Serratus Posterior Superior.

Half Skeleton Muscle Demo Prop

I've been using this armature I made from an articulated plastic skeleton to demonstrate muscle origin and insertion. It's a old somso cast I believe, so the detailing is better than a Bucky. After extensive use, it started to fall apart so I tweaked the armature using 3/8" galvanized pipe and a 1/2" conversion coupling to 1/2" nipple and phlange.so now it's ready to go.

This time I'm going to use the kleen klay unsulpherated terra cotta color.... it's more life like.

Comparative Anatomy- The forelimb

Here I have superimposed the actual bone on a demo drawing to illustrate how the radius has evolved/devolved based on survival imperative.I've laid out the human dog, and horse brachia to illustrate this.Most obvious is the lack of clavicles in the dog and horse and the gradual restricted movement of the radius in the dog to total fusion of the ulna with the radius in the horse into permanent pronation.

Muscles of the Neck- Anterior

Here's a survey of the Anterior Neck muscles for the Ecorche.

The Hyoid and deep neck muscles

Before we drape the outer muscles of the neck onto the cervical column , there are a few muscles that the artistic anatomist might like to consider including.on their Ecorche.

These are the muscles that either insert and originate on the Hyoid bone.

The Omohyoid muscle, interestingly enough, can be readily seen on a model with low body fat - a strap like muscle that originates on the Coracoid processof the Scapula and like a fountain travels up the nexk to the Hyoid.

The Disarticulated Skull

The Disarticulated Skull