Which cells contain sarcoplasm?

Which cells contain sarcoplasm?

Sarcoplasm is the cytoplasm of a muscle cell. It is comparable to the cytoplasm of other cells, but it contains unusually large amounts of glycogen (a polymer of glucose), myoglobin, a red-colored protein necessary for binding oxygen molecules that diffuse into muscle fibers, and mitochondria.

Where is sarcolemma found?

skeletal muscle fibers
Complete step by step answer:Sarcolemma is the membrane found over skeletal muscle fibers. In the striated muscle fiber cell, the cell membrane is known as the sarcolemma.

What cells contain myofibrils?

Cardiac muscle like skeletal muscle is also striated and the cells contain myofibrils, myofilaments, and sarcomeres as the skeletal muscle cell. The cell membrane is anchored to the cell’s cytoskeleton by anchor fibers that are approximately 10 nm wide.

What type of muscle contains myofibrils?

striated muscle
A myofibril (also known as a muscle fibril or sarcostyle) is a basic rod-like organelle of a muscle cell. Muscles are composed of tubular cells called myocytes, known as muscle fibres in striated muscle, and these cells in turn contain many chains of myofibrils.

How are muscle fibers covered by the sarcoplasm?

Each muscle bundle contains a number of muscle fibers [4,5]. Each muscle fiber is covered by plasma membrane called sarcolemma enclosing the sarcoplasm. Muscle fiber is syncitium due to presence of many nuclei in sarcoplasm. The sarcoplasmic reticulum of the muscle fibers stores calcium ions.

How are the filaments of the sarcoplasmic reticulum arranged?

Muscle fiber is syncitium due to presence of many nuclei in sarcoplasm. The sarcoplasmic reticulum of the muscle fibers stores calcium ions. Myofilaments or myofibrils are parallelly arranged filaments present in the sarcoplasm having alternate dark and light bands.

How are myofibrils arranged in a sarcoplasm?

Myofilaments or myofibrils are parallelly arranged filaments present in the sarcoplasm having alternate dark and light bands. Myofibrils have striated appearance due to the distribution of two important proteins – Actin and Myosin.

Is the sarcolemma filled with interstitial fluid?

The sarcolemma, or transverse (T) tubules, is filled with interstitial fluid to ensure that an action potential excites all parts of the muscle fiber at the same time. Within the sarcolemma is the sarcoplasm, the cytoplasm of a muscle fiber. Sarcoplasm includes a substantial amount of glycogen, a polymer of glucose.