GENERAL ANATOMY
MUSCLE ANATOMY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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neuron
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reticulum
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Z line
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sarcomere
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Detailed explanation-1: -Sarcomeres. A sarcomere is the functional unit (contractile unit) of a muscle fiber. As illustrated in Figure 2-5, each sarcomere contains two types of myofilaments: thick filaments, composed primarily of the contractile protein myosin, and thin filaments, composed primarily of the contractile protein actin.
Detailed explanation-2: -Sarcomere is the structural & functional unit of muscle.
Detailed explanation-3: -A sarcomere is the basic contractile unit of a myocyte (muscle fibre). A sarcomere is composed of two main protein filaments (thin actin and thick myosin filaments) which are the active structures responsible for muscular contraction.
Detailed explanation-4: -Answer and Explanation: The functional unit of a muscle myofibril is called a sarcomere. The sarcomere is composed of overlapping actin and myosin filaments that form a cross bridge with each other and slide past each other resulting in the shortening of the sarcomere.
Detailed explanation-5: -The fundamental repeat unit within muscle that is responsible for contraction is the sarcomere. The sarcomere consists of a bundle of myosin-containing thick filaments flanked and interdigitated with bundles of actin-containing thin filaments (Fig.