What is a fascicle of a skeletal muscle quizlet?
connective tissue fibers that divide the skeletal muscle into a series of compartments, each containing a bundle of muscle fibers called a fascicle.
What encapsulates individual skeletal muscles quizlet?
Individual skeletal muscle fibers are surrounded by a layer of aerolar connective tissue. Skeletal muscle fibers are grouped into bundles that are surrounded by a layer of dense regular connective tissue.
How do blood vessels penetrate into the inner structures of the bone quizlet?
How do blood vessels penetrate into the inner structures of the bone? The outer layer of the periosteum contains blood vessels and nerves, some of which penetrate to the inner structures of the bone through channels called Volkmann canals. Canaliculi are small channels or canals.
What term is used to identify the component’s of the bone matrix that gives bone tensile strength?
While calcium, phosphate, and magnesium all play a role in bone formation, collagen is the component of bone matrix that gives bone tensile strength.
What is another name for skeletal muscle?
Skeletal muscle, also called voluntary muscle, in vertebrates, most common of the three types of muscle in the body. Skeletal muscles are attached to bones by tendons, and they produce all the movements of body parts in relation to each other.
What is a fascicle of a skeletal muscle?
Skeletal muscle is enclosed in connective tissue scaffolding at three levels. When a group of muscle fibers is “bundled” as a unit within the whole muscle it is called a fascicle. Fascicles are covered by a layer of connective tissue called perimysium (see Figure 10.3).
What encapsulates individual skeletal muscles?
An individual skeletal muscle may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in a connective tissue covering. Each muscle is surrounded by a connective tissue sheath called the epimysium. Fascia, connective tissue outside the epimysium, surrounds and separates the muscles.
What is the smallest layer of skeletal muscle?
The smallest contractile unit of skeletal muscle is the muscle fiber or myofiber, which is a long cylindrical cell that contains many nuclei, mitochondria, and sarcomeres (Figure 1) . Each muscle fiber is surrounded by a thin layer of connective tissue called the endomysium.
What is the main energy source of fuel for skeletal muscle contraction quizlet?
What is the main energy source or fuel for skeletal muscle contraction? Skeletal muscle requires a constant supply of ATP and phosphocreatine. These substances are necessary to fuel the complex processes of muscle contraction.
What are the steps of bone repair quizlet?
Terms in this set (4)
- blood forms a hematoma.
- spongy bone forms close to developing blood vessels and fibrocartilage forms in more distant regions.
- bony callus replaces cartilage.
- osteoclasts remove excess bony tissue restoring new bone structure to original form.
What makes up the fibrous layer of skeletal muscle?
fibrous layer that divides the skeletal muscle into a series of compartments, collagen fibers and elastic fibers, contains blood vessels and nerves that maintain blood flow/innervate (supply) the muscle fibers w/in the fascicles. Endomysium.
How are collagen fibers connected to skeletal muscle tissue?
Epimysium dense layer of collagen fibers, surrounding the entire muscle, separates the muscle from surrounding tissues/organs, connected to the deep fascia (a dense CT layer), supporting CT Perimysium
Which is the 3rd connective tissue layer of the muscle?
Skeletal Muscle Definition. Fascicles are the 3rd connective tissue layer. Endomysium separates and electrically insulates the muscle cells from each other. All 3 connective tissue layers bind the muscle cells together, providing strength and support othe entire muscle. They merge at the ends of the muscles and are continuous with the tendons.
What are the functions of skeletal muscle cells?
Tissues of the body characterized by widely spaced cells with large amounts of intracellular matrix. The functions of these tissues vary considerably; generally, they serve to support, bind, insulate, transport and provide storage. Stripes; in the case of skeletal muscle cells, the stripes are created by a repeating series of dark and light bands.