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The biceps or biceps brachii (Latin: musculus biceps brachii, "two-headed muscle of the arm") is a large muscle that lies on the front of the upper arm between the shoulder and the elbow. Both heads of the muscle arise on the scapula and join to form a single muscle belly which is attached to the upper forearm.
Biceps reflex is a deep tendon reflex (DTR) test (also known as a muscle-stretch reflex test) [1] that examines the function of the C5 reflex arc and the C6 reflex arc. [2] The test is performed by using a tendon hammer to quickly depress the biceps brachii tendon [ 3 ] as it passes through the cubital fossa .
The VOR involves movement of the eyes while the head turns to remain fixated on a stationary image, and the VCR involves control of neck muscles for correction of the head's orientation. [11] During the VOR, the semicircular canals send information to the brain and correct eye movements in the direction opposite head movement by sending ...
The head rests on the top part of the vertebral column, with the skull joining at C1 (the first cervical vertebra known as the atlas). The skeletal section of the head and neck forms the top part of the axial skeleton and is made up of the skull, hyoid bone, auditory ossicles, and cervical spine. The skull can be further subdivided into:
Some may argue that the tension on muscle is most significant during the mid-range, practice bicep curl with a half range of motion to let muscle generate the most force. [4] The research found that the preacher curl targets the long head of the biceps significantly only when the arm was almost fully extended, and the range of motion was short.
The biceps femoris (/ ˈ b aɪ s ɛ p s ˈ f ɛ m ər ɪ s /) is a muscle of the thigh located to the posterior, or back. As its name implies, it consists of two heads; the long head is considered part of the hamstring muscle group, while the short head is sometimes excluded from this characterization, as it only causes knee flexion (but not hip extension) [1] and is activated by a separate ...
The brachial plexus innervates the upper extremity as well as some muscles in the neck and shoulder. [4] Damage to the brachial plexus can occur when the nerves are stretched too far from the head and neck; specifically the upper trunk of the plexus – nerve roots at the 5th and 6th cervical level – are primarily affected.
The cantilevered (poked forward) head position loads the spine up to several times more than erect posture, because of the increased moment arm. [31] So the posterior neck muscles (especially the upper fibres of trapezius) holding the head in its forward position, often sustained for many hours, can strain, producing individual myofibril and ...