accessorius

American  

[ak-suh-sawr-ee-uhs, -sohr-] / ˌæk səˈsɔr i əs, -ˈsoʊr- /

noun

plural

accessorii

1. Anatomy. any muscle, nerve, gland, etc., that reinforces the action of another.

---

accessorius British  

/ ˌæksɛsˈɔːrɪəs /

noun

1. anatomy a muscle or nerve that has an augmenting action

---

Etymology

Origin of accessorius

< New Latin, Medieval Latin: accessory

Example Sentences

The m. accessorius semitendinosi extends anteriorly from the above mentioned ligament to a fleshy insertion on the posterolateral surface of the femur immediately proximal to the condyles.

From Myology and Serology of the Avian Family Fringillidae A Taxonomic Study by Stallcup, William B.

The same muscle sometimes varies in many ways: thus Prof. Macalister describes145 no less than twenty distinct variations in the palmaris accessorius.

From The Descent of Man and Selection in Relation to Sex, Vol. I by Darwin, Charles

Macalister, Prof., on variations of the palmaris accessorius muscle; on muscular abnormalities in man; on the greater variability of the muscles in men than in women.

From The Descent of Man by Darwin, Charles