The rod was threaded directly to the top of the exciter and to the base of the reference force transducer, making difficult orientation, tedious alignment and customization of stinger lengths a part of every test. The through-hole armature design eliminates these problems.
The nasalis is a sphincter-like muscle of the nose whose function is to compress the nasal cartilages. It is the muscle responsible for flaring of the nostrils. Some people can use it to close the nostrils to prevent entry of water when underwater. It consists of two parts, transverse and alar :
The sternothyroid muscle, also called the sternothyroideus, is in the neck area. The muscle goes from the sternum, or breastbone, to the edge of the thyroid cartilage. It starts in the manubrium sterni, the uppermost part of the breastbone, and inserts into the lamina, or thin layers, of thyroid cartilage, which is located inferior to (behind) the hyoid. It works to depress the larynx, or voice box, which helps create sound.