Table of Contents
How do parallel elastic components work?
The parallel elastic component (PEC), provided by the muscle membranes, supplies resistance when a muscle is passively stretched. The series elastic component (SEC), residing in the tendons, acts as a spring to store elastic energy when a tensed muscle is stretched.
What are elastic components?
1) extensibility: ability to be stretched or to increase.
What are some examples of parallel muscles?
Parallel Muscles They are normally long muscles which cause large movements, are not very strong but have good endurance. Examples include Sartorius and Sternocleidomastoid. Some textbooks include Fusiform muscles in the parallel group.
What are parallel muscles?
Parallel muscles are characterized by fascicles that run parallel to one another, and contraction of these muscle groups acts as an extension of the contraction of a single muscle fiber. The biceps brachii is an example of a fusiform parallel muscle, and is responsible for flexing the forearm.
What is series elastic element?
A non-contractile component of muscle that lies in series with muscle fibres. Series elastic components store energy when stretched and make a major contribution to the elastic of the human skeleton.
What is epimysium and what is its function?
Epimysium (plural epimysia) (Greek epi- for on, upon, or above + Greek mys for muscle) is the fibrous tissue envelope that surrounds skeletal muscle. It is a layer of dense irregular connective tissue which ensheaths the entire muscle and protects muscles from friction against other muscles and bones.
Which component of the 3 component model is represented by the tendon?
The series element represents the tendon and the intrinsic elasticity of the myofilaments.
Which of the following groups are considered to be parts of the series elastic components of muscle?
Muscles contract when stimulated. Which of the following groups are considered to be parts of the series-elastic components of muscle? Endomysium, perimysium, epimysium, fascia, and tendons.
Which of the following is a parallel elastic component of the muscle?
The parallel elastic component is suggested to consist of the membranes surrounding the contractile components which includes the sarcolemma, sarcoplasmic retinaculum, the perimysium and the epimysium, while the series elastic components reside in the tendons and aponeuroses.
What muscles have parallel fiber arrangement?
Fusiform muscles are those in which all the muscle belly fibers are arranged parallel to each other. An example of the fusiform muscle is m. biceps brachii.
Which muscle is an example of a parallel arrangement of muscle fascicles?
biceps
Some parallel muscles are flat sheets that expand at the ends to make broad attachments such as the sartorius (see Figure 11.2. 2). Other parallel muscles have a larger central region called a muscle belly tapering to tendons on each end. This arrangement is called fusiform such as the biceps brachii (see Figure 11.2.
What is parallel elastic component of skeletal muscle?