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Slavatičė

Slavatičė

Slavatičė – kaimas Lenkijos rytuose, Slavatičės valsčiuje, Palenkės Bialos apskrityje, Liublino vaivadijoje. Kaimas yra apie 44 km į pietryčius nuo Palenkės Bialos ir apie 88 km į šiaurės rytus nuo vaivadijos centro Liublino. Kaimas įsikūręs kairiajame Vakarinio Bugo upės krante, Kodenio lygumoje. Šalia kaimo yra Slavatičės-Domačevo pasienio punktas.

Groß Quenstedt

Groß Quenstedt

Groß Quenstedt är en kommun och ort i Landkreis Harz i förbundslandet Sachsen-Anhalt i Tyskland. Kommunen ingår i förvaltningsgemenskapen Vorharz tillsammans med kommunerna Ditfurt, Harsleben, Hedersleben, Schwanebeck, Selke-Aue och Wegeleben.

四趾岩象鼩

四趾岩象鼩

四趾岩象鼩也稱四趾岩跳鼩,是象鼩科岩象鼩屬中現存唯一的一種,廣泛分布於非洲中部和東部的叢林及農田地帶,捕食無脊椎動物。

Skeletal muscle

Skeletal muscle

Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth muscle. It is a form of striated muscle tissue, which is under the voluntary control of the somatic nervous system. Most skeletal muscles are attached to bones by bundles of collagen fibers known as tendons. A skeletal muscle refers to multiple bundles of cells joined together called muscle fibers. The fibers and muscles are surrounded by connective tissue layers called fasciae. Muscle fibers, or muscle cells, are formed from the fusion of developmental myoblasts in a process known as myogenesis. Muscle fibers are cylindrical and have more than one nucleus. They also have multiple mitochondria to meet energy needs. Muscle fibers are in turn composed of myofibrils. The myofibrils are composed of actin and myosin filaments, repeated in units called sarcomeres, which are the basic functional units of the muscle fiber. The sarcomere is responsible for the striated appearance of skeletal muscle and forms the basic machinery necessary for muscle contraction.

Released under the MIT License.

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