It is stored as GLYCOGEN, not glucose.
The tension in a muscle spindle is maintained by intrafusal muscle fibers, which are specialized muscle fibers within the spindle that are innervated by sensory nerve fibers. These sensory fibers detect changes in muscle length and transmit signals to the central nervous system to regulate muscle tone and coordination.
The outer covering of the muscle is called the epimysium. It surrounds the entire muscle and helps protect and support the muscle fibers within.
Muscle fibers that contain many bundles of cylindrical structures are called myofibrils. Myofibrils are the contractile units within muscle fibers that are composed of repeating units called sarcomeres. Sarcomeres are responsible for muscle contractions by sliding past each other during the contraction process.
After electricity reaches the muscles, it triggers the release of calcium ions within the muscle fibers. This causes the muscle fibers to contract and generate force, allowing movement to occur.
Insulation by the endomysium is important for protecting the individual muscle fibers from damage caused by friction or rubbing against each other. It also helps in maintaining the electrical conductivity within the muscle fiber, allowing for proper muscle function and coordination.
fascicle
Endomysium is the delicate connective tissue that surrounds individual muscle fibers (cells) within a muscle. It provides support and protection to the muscle fibers.
The tension in a muscle spindle is maintained by intrafusal muscle fibers, which are specialized muscle fibers within the spindle that are innervated by sensory nerve fibers. These sensory fibers detect changes in muscle length and transmit signals to the central nervous system to regulate muscle tone and coordination.
When a muscle contracts, the physiological process occurring within the body is the shortening of muscle fibers, which results in the generation of force and movement.
The outer sheath of a bundle of muscle fibers is called the perimysium. It is a connective tissue that encases groups of muscle fibers, known as fascicles, providing support and structure. The perimysium contains blood vessels and nerves that supply the muscle fibers within the fascicle.
Perimysium is the connective tissue that surrounds bundles of muscle fibers within a muscle. It helps to provide structural support and protection to the muscle fibers, as well as aiding in the transmission of force generated during muscle contraction.
The smallest unit among myofibrils, myofilaments, muscle fibers, and fascicles is the myofilament. Myofilaments are the microscopic protein filaments (actin and myosin) within myofibrils that are responsible for muscle contraction. Myofibrils are bundles of myofilaments, muscle fibers are composed of many myofibrils, and fascicles are groups of muscle fibers.
When a single neuron sends a strong enough impulse to a muscle, it can cause multiple muscle fibers within that muscle to contract. The specific number of muscle fibers that contract will depend on factors like the size of the motor unit and the intensity of the signal from the neuron.
A discrete bundle of skeletal muscle cells, known as a fascicle, is a group of muscle fibers encased in a connective tissue sheath called the perimysium. Muscle fibers within a fascicle are long, cylindrical cells that contract to produce movement. Fascicles are organized within a skeletal muscle, which is surrounded by another layer of connective tissue called the epimysium. This organization allows for coordinated contraction and efficient force generation during muscle activity.
Yes, when you push on a table, the muscle fibers in your arm contract, which causes them to shorten. This contraction generates the force needed to exert pressure on the table. The process involves the sliding filament mechanism, where actin and myosin filaments within the muscle fibers interact, leading to the shortening of the muscle.
A muscle belly is surrounded by epimysium and contains bundles of muscle fibers called fascicles. The epimysium is the connective tissue sheath that surrounds the entire muscle, while the fascicles are smaller units within the muscle that contain individual muscle fibers.
The striations in muscle fibers are caused by the arrangement of contractile proteins within the fibers. These proteins, primarily actin and myosin, overlap and interlock in a regular pattern, giving the muscle fibers a striped appearance when viewed under a microscope.