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What is a rhythmic contraction?
A rhythmic contraction refers to a repeated pattern of muscle contractions at regular intervals. This can occur in various muscles in the body, including the heart muscle during the cardiac cycle. Rhythmic contractions are important for fundamental physiological processes such as pumping blood or generating movement.
The point of contact between the nerve and the muscle fibers it stimulates is called a?
The point of contact between the nerve and the muscle fibers it stimulates is called a neuromuscular junction. This junction allows for communication between the nervous system and the muscular system, facilitating muscle contraction in response to nerve impulses.
A maximal sustained muscle contraction is called a?
tetanic contraction.
What is the instrument used to record muscular contractions?
The instrument used to record muscular contractions is called an electromyograph (EMG). It measures the electrical activity produced by skeletal muscles during contraction and relaxation. By placing electrodes on the skin or inserting them into the muscle, EMG provides valuable data for diagnosing neuromuscular disorders and studying muscle function.
What kind of rock breaks apart into flat planar sections?
The type of rock that breaks apart into flat planar sections is called a sedimentary rock, specifically those that exhibit layering, such as shale. Shale is composed of fine particles and clay minerals that align in such a way that it can split easily along these layers. This characteristic is due to the processes of sedimentation and compaction, which create distinct planes of weakness in the rock. Other types of rocks, like schist or gneiss, also exhibit foliation and can break in flat sections but are metamorphic in nature.
What is a painful and muscular contraction called?
a cramp or spasm.
What is the muscular contraction called that moves food through the stomach?
peristalsis
Contraction of a muscle resulting in its shortening?
A muscular contraction that causes a muscle to shorten is called a concentric contraction. A concentric contraction is a type of isotonic contraction.
Application of muscular force with movement is called?
The application of muscular force with movement is called muscle contraction. This occurs when muscles generate tension and shorten in length to produce movement such as lifting a weight or running.
How does the muscular system coordinate the contraction of the whole muscle?
The muscular system coordinates the contraction of the whole muscle through a process called excitation-contraction coupling. When a signal from the nervous system reaches a muscle fiber, it triggers the release of calcium ions, which bind to proteins in the muscle cells and initiate the contraction process. This coordinated effort allows the entire muscle to contract in a synchronized manner, enabling movement and strength.
A muscular contraction that causes a muscle to shorten as it develops tension is called?
A cramp is a sudden over-shortening of a muscle. Cramps are involuntary and, often, severe. They can be extremely painful.
What is the state of slight contraction present in healthy muscles?
The continuous partial contraction of muscle is called muscle tone
Application of muscular force without movement is called?
isometric- Application of muscular force without movement
What is the muscular portion of the cardiac wall?
The muscular portion of the cardiac wall is called the myocardium. It is responsible for contracting and pumping blood throughout the body. The myocardium is made up of cardiac muscle cells that are interconnected to allow for coordinated contraction of the heart.
What is a rhythmic contraction?
A rhythmic contraction refers to a repeated pattern of muscle contractions at regular intervals. This can occur in various muscles in the body, including the heart muscle during the cardiac cycle. Rhythmic contractions are important for fundamental physiological processes such as pumping blood or generating movement.
The point of contact between the nerve and the muscle fibers it stimulates is called a?
The point of contact between the nerve and the muscle fibers it stimulates is called a neuromuscular junction. This junction allows for communication between the nervous system and the muscular system, facilitating muscle contraction in response to nerve impulses.
What part of the muscle applies to the midsection of the muscle between the two attached sections?
The part of the muscle that applies to the midsection between the two attached sections is called the belly or gaster. This is the fleshy, central portion of the muscle that is typically responsible for contraction. The ends of the muscle, which attach to bones, are known as the origin and insertion, while the belly is the main area that generates force during muscle contraction.
