Skeletal Muscle Structure

提供:一歩一歩
2019年5月26日 (日) 21:54時点におけるSHolroydAtWeilCornellMedQatar (トーク | 投稿記録)による版
ナビゲーションに移動 検索に移動


Skeletal muscle structure

A whole skeletal muscle (such as the biceps) is made up of a number of fascicles. A fascicle is made up of a group of muscle fibers (cells) with associated blood vessels and nerves. Within each muscle fiber are a number of myofibrils that run the entire length of the fiber.

Skeletal muscle gross structure 1.jpg

Download for free at http://cnx.org/contents/7c42370b-c3ad-48ac-9620-d15367b882c6@19.

Muscle fibers are long cylindrical multinucleated cells that run the whole length of the muscle. Note the alternating light and dark bands that run along each fiber, this is why skeletal muscle is said to be striated.

Skeletal Muscle Gross Structure 1A.jpg