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Why are multipennate muscles more likely to generate muscle contraction forces than fusiform muscles?
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How do muscles generate heat?
When your muscles use energy to power muscle contraction 3 quarters turns into heat.
Produces quick muscle contractions to make heat?
Shivering is the rapid contraction and relaxation of muscles to generate heat.
Which muscles with fibers run at an angle to the long axis of the body?
Fusiform.
Are the two contractile proteins in muscles myosin and actin?
Yes the contractile proteins generate force during contraction and are actin and myosin
A contraction in which a skeletal muscle does not shorten but its tension increases is called isometric?
An isometric contraction is the name given to a skeletal muscle that does not shorten, but increases tension. The muscles generate force to protect themselves.
What are some examples of multipennate muscles?
Unipennate lumbricals; Extensor digitorum longus..The triangular deltoid muscle of the shoulder is onethe deltoid muscle is a multipennate not a unipennate, an example of a unipennate is Extensor digitorum longus.
Are muscles are bundles of muscle fibers d together by connective tissue?
muscles are made up of cells
What is the muscles main functions?
The main function of any muscle is to contract. Some other functions of muscles and the muscular system are that they: maintain the body's posture stabilize joints produce movement generate heat
What requires acetylcholine for contraction?
Anerobic contraction of muscles.
What the opposite of Contraction?
The general opposite of contraction is expansion, or possibly inflation. For muscles, the opposite of contraction is relaxation.
What is Thompson's disease?
A hereditary disease of the muscles characterized by prolonged contraction of the muscles whenever voluntary motion is attempted, contraction and relaxation being slow and the muscles stiff.
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.
