Search results

contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as when holding something...

agonists during shortening. This term typically describes the function of skeletal muscles. Antagonist muscles are simply the muscles that produce an...

skeletal muscle than women. Most muscles occur in bilaterally-placed pairs to serve both sides of the body. Muscles are often classed as groups of muscles that...

muscle, and iris sphincter muscle are types of smooth muscles. The iris dilator and sphincter muscles are contained in the iris and contract in order to...

attempts to align the eyes by shortening, lengthening, or changing the position of one or more of the extraocular eye muscles. The procedure can typically...

using less uniform muscles rather than subtly changing the shape of the lens itself using circularly arranged muscles. Varying forms of direct experimental...

as do cartilaginous fish, the muscles involved are not similar in either type of animal. In frogs, there are two muscles, one above and one below the lens...

cessation of stimuli, and maximal shortening velocity. These muscles are rarely found in mammals (only in the muscles moving the eye and in the middle ear), but...

one or more joint contractures have abnormal fibrosis of the muscle tissue causing muscle shortening, and therefore are unable to perform active extension...

controlled by ciliary muscles inside the eye. Changes in contraction of the ciliary muscles alter the focal distance of the eye, causing nearer or farther...

intercostals are a set of muscles sandwiched among the ribs. They interconnect ribs, and are therefore the primary respiratory skeletal muscles. They are divided...

prolonged period of muscle contraction. Any of these mechanisms can result in a shortening or excessive contraction of the sternocleidomastoid muscle, which curtails...

paralyzes injected muscles. Paralysis is temporary, and it might seem that injections would always need to be repeated, except that muscles adapt to the lengths...

improving eyesight. Eye-care physician William Horatio Bates (1860–1931) held the erroneous belief that the extraocular muscles effected changes in focus...

them leverage and multiplies the muscle force. It provides attachment points for the following muscles: As much of the fibula can be removed without...

in early literature aimed at shortening the length of the eyeball by resecting a ring of sclera from the equator of the eye. Later procedures focused on...

development of weakness of the respiratory muscles, with the loss of ability to cough and to breathe without support, that is ultimately life-shortening in ALS...

the corresponding mimetic muscles lose their ability to contract. This may lead to several symptoms such as incomplete eye closure with or without exposure...

muscles of the face, those that position the scapula, and those overlying the humerus bone of the upper arm. These areas can be spared, and muscles of...

muscle tone which can delay walking due to being weak, also paralysis of eye muscles and intellectual disability which affects an individual's way of...