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As unilateral exercises emphasise muscle use in a different way to bilateral exercises, and thereby alter the ratio in which different muscles are engaged, they can be selected in order to focus on training particular muscles. For example, a one-legged squat activates the gluteus medius more than a rear foot elevated split squat. [4]
The neurogenic type is the most common and presents with pain, weakness, paraesthesia, and occasionally loss of muscle at the base of the thumb. [1] [2] The venous type results in swelling, pain, and possibly a bluish coloration of the arm. [2] The arterial type results in pain, coldness, and pallor of the arm. [2]
The levator palpebrae superioris receives motor innervation from the superior division of the oculomotor nerve. [1] [2] [3] The smooth muscle that originates from its undersurface, called the superior tarsal muscle is innervated by postganglionic sympathetic axons from the superior cervical ganglion.
Delayed onset muscle soreness (DOMS) is the pain and stiffness felt in muscles after unaccustomed or strenuous exercise. The soreness is felt most strongly 24 to 72 hours after the exercise. The soreness is felt most strongly 24 to 72 hours after the exercise.
Manual lifting of the eyelid often resolves the problem and the lid is able to stay open. ALO was first clearly described as a distinct entity in 1965 as "a nonparalytic motor abnormality characterized by the patient's difficulty in initiating the act of lid elevation present only momentarily at the start of lid opening."
Horner's syndrome, also known as oculosympathetic paresis, [1] is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk is damaged. The signs and symptoms occur on the same side (ipsilateral) as it is a lesion of the sympathetic trunk.
The stimulated two intorters (right eye) and the two extorters (left eye) have opposite vertical actions i.e., one is an elevator and the other is a depressor. The opposite vertical actions nearly cancel each other and therefore only a small vertical deviation occurs, whereas their identical torsional actions are additive.
The extraocular muscles rotate the eyeball around vertical, horizontal and antero-posterior axes. Extraocular muscles other than the medial rectus and lateral rectus have more than one action due to the angle they make with the optical axis of the eye while inserting into the eyeball. The superior and inferior oblique muscles make an angle of ...