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The iris of the eye has two fibers what are they?
Circular and Radius set of muscle fibers
Muscle sphincters are composed of what two types of muscle fibers?
Smooth Muscle Fiber
What are the two main muscule fiber types are called?
The two main muscle fiber types are slow-twitch (Type I) fibers and fast-twitch (Type II) fibers. Slow-twitch fibers are better for endurance activities as they are more resistant to fatigue, while fast-twitch fibers are better suited for explosive, powerful movements.
What is the innermost part of the muscle?
There are two types of muscle in the body. The Cardiac Muscle and the Skeletal Muscle. The skeletal muscle is made up of intrafusal and extrafusal fibers. The Muscle Belly is made up entirely of extrafusal fibers (even in the deepest parts). The intrafusal fibers are located throughout the muscle. The cardiac muscle is distinct from skeletal muscle, one of the main differences is the amount of mitochondria it has is increased, and so technically at the deepest part of cardiac muscle is mitochondria (but there are other components as well).
Why does the esophagus have two layers of muscle fibers?
for peristallysis
What is the role of slow muscle fibers and fast muscle fibers in the response of a muscle to different types of exercise?
There are two broad types of voluntary muscle fibers: slow twitch and fast twitch. Slow twitch fibers contract for long periods of time but with little force while fast twitch fibers contract quickly and powerfully but fatigue very rapidly.
How are muscle fibers arranged to form a muscle?
Muscle fibers can be arranged into two basic structural patterns, fusiform and pinnate. Most human muscles are fusiform, with the fibers largely arranged parallel along the muscle's longitudinal axis. In many of the larger muscles the fibers are inserted obliquely into the tendon, and this arrangement resembles a feather. The fibers in a pinnate (feather) muscle are shorter than those of a fusiform muscle. The arrangement of pinnate muscle fibers can be single or double, as in muscles of the forearm, or multipinnate, as in the gluteus maximus or deltoid.
What are the fibers that muscles are made of called?
Muscle fibers, or muscle cells, are made up of two kinds of fibers, or myofilaments. The thin ones are called actin, and the thick ones are called myosin.
What is a layer of the heart largely composed of cardiac muscle tissue?
This word can be broken down into two parts that will reveal the answer to your question. Myo is the medical term for muscle and cardio is the medical term for heart. Therefore, your answer would be the muscle that is the heart.
What are The two basic and opposite actions that account for all muscle movements?
CONTRACTION AND EXTINSION a.k.a True
How cardiac muscle fibers differ from the fibrs of skeletal muscle?
Both cardiac and skeletal muscle cells are striated and contract by the sliding filament mechanism. However, cardiac muscles cells are short, fat, branched, and interconnected unlike the long, cylindrical, multinucleate of skeletal muscle fibers.
Why are endurance athletes able to exercise longer than non-endurance athletes?
There are basically two types of muscle fibers in our bodies that we have voluntary control over. One is called "red" muscle, and the other is called "white". Red muscle fibers have the ability to perform work over longer periods of time without fatigue. White muscle fibers are able to work hard, but for a shorter period of time than red fibers. An endurance athlete will have exercised his or her red muscle fibers (through long exercise sessions), so that they grow stronger and bigger. This means that their body will have the ability to do work for much longer than a person who only exercises for shorter periods (and exercises their white muscle fibers).
