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What else can I help you with?
What the meaning of polynucleated?
Polynucleated (if the word really exists which I see no reason why it shouldnt) refers to a cell having the property of many nucleas's within it. An example of a polynucleated cell would be skeletal muscle as opposed to cardiac and smooth muscle which are uninucleates.
What carries blood myocardium?
Conduction myofibers
How can rigor mortis be avoided in animals?
Rigor mortis is a natural and normal process that occurs in the carcass of all dead animals with developed muscular systems. It is caused by the continued activation of myofibers that eventually become "stuck" in the contracted phase. When all the myofibers are contracted and remain that way, the overall carcass becomes stiff and is said to be in rigor mortis. After a while, the myofibers start to break down under bacterial digestion and the rigor mortis will eventually collapse. There is no way to avoid rigor mortis to the best of my knowledge.
What are the key differences between a myotube and a myofiber in muscle physiology?
A myotube is an immature muscle cell that forms during muscle development, while a myofiber is a mature muscle cell that is fully developed and functional. Myotubes eventually fuse together to form myofibers, which are the main contractile units of skeletal muscle. Myofibers are larger and more specialized than myotubes, with multiple nuclei and a well-defined structure for efficient muscle contraction.
The perimysium is a collagenous connective tissue layer that groups several muscle fibers together into bundles called what?
Epimysium surrounds the muscle Perimysium sorrounds fascicles Endomysium surrounds myofibers
What are facts about a skeletal muscle cell?
Skeletal muscle cells are long, barrel shaped, and striated cells that are answerable for development. They are comprised of heaps of muscle strands called myofibers, and are appended to bones by ligaments
What are three types of fascia and their differences?
Fascia-the sheets of fibrous connective tissue that holds muscle fibres together.Epimysium is on the outer layer of the whole muscle (made up of bundles).Fascicles is the name for those bundles of muscles, which is surrounded by perimysium.Individual muscle fibers are surrounded by myofibers.
What are the organization levels of muscle?
From biggest to smallest you can have:the whole muscle (surrounded by the epimysium)then bundles- or fascicles if you prefer (these are surrounded by an perimysium)cells-which are also known as muscle fibers, or myofibers (surrounded by endomysium)myofibrilssarcomeresfilaments (both thin and thick)molecules (proteins actually, like actin, tropomyosin, troponin, and myosin)
What can be found in every skeletal muscle?
Mycocytes, muscle cells sometimes called muscle fibers, are individual components that make up skeletal muscle cells. They are formed from the fusion of myoblasts known as myogenesis. They are long, cylindrical, multinucleate cells called myofibers. They are held together by connective tissue. The muscle is attached to tendons and bones,
How are the striations of a skeletal muscle produced?
Striations in skeletal muscle are produced by the repeating arrangement of protein filaments called actin and myosin. These filaments overlap in a specific pattern, forming alternating light and dark bands known as striations. When muscles contract, the actin and myosin filaments slide past each other, resulting in the shortening of the muscle and the appearance of the striations.
What is the definition of a Skeletal muscle cell?
A skeletal muscle cell is a type of cell that is long, cylindrical, and striated in appearance. These cells are responsible for voluntary movement and are attached to bones by tendons. Skeletal muscle cells contract to generate force and movement in the body.
What structure produces the heart's electochemical impullses?
Cardiac Conduction System (CCS)There are specialized areas of cardiac muscle tissue in the heart that beat on their own.These specialized areas together coordinate the events of the cardiac cycle, which makes the heart an effective pump.Components of CCS:1. Sinoatrial Node (S-A Node) located in right uppermost atrial wall and the primary pacemaker(rhythmically and repeatedly [60-100 per minute] initiates cardiac impulses)2. Atrioventricular Node (A-V Node): located in interatrial septum;serves as a delay signal that allows for ventricular filling. A back up pace maker.3. Atrioventricular (AV) Bundle (Bundle of His): only electrical connection between the atria and ventricles; located in the superior interventricular septum;4. Right and left bundle branches head downward through interventricular septum toward apex, and impulse finally reaches.5. Purkinje Fibers (Conduction Myofibers) large diameter conduction myofibers; located within the papillary muscles of the ventricles and conduct the impulse into the mass of ventricular muscle tissue.
