Muscle, cardiac
A type of muscle with unique features only found in the heart. The cardiac muscle is the muscle of the heart and medically is called the myocardium (“myo-” being the prefix denoting muscle).
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- Muscle, adductor
Any muscle that pulls a body part toward the midline of the body. For example, the adductor muscles of the legs pull the legs toward the midline of the body so the legs are closer together. The word “adductor” comes from the Latin prefix “ad” meaning “toward” + “ducere” meaning “to draw or lead” = […]
- Muscle, ciliary
A circular muscle that relaxes or tightens the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation.
- Muscle, central core disease of
One of the conditions that produces ‘floppy baby’ syndrome. Central core disease of muscle causes hypotonia (low muscle tone) in a newborn baby, slowly progressive muscle weakness, and muscle cramps after exercise. Muscle biopsy shows a key diagnostic finding of absent mitochondria in the center of many muscle fibers. It is caused by an abnormal […]
- Muscle, heart
A type of muscle with unique features only found in the heart. The heart or cardiac muscle is medically called the myocardium (“myo-” being the prefix denoting muscle).
- Muscle, infraspinatus
The infraspinatus muscle; The teres minor muscle, which (like the infraspinatus muscle) helps in the outward turning (external rotation) of the arm; The supraspinatus muscle, which is responsible for elevating the arm and moving it away from the body; and The subscapularis muscle, which moves the arm by turning it inward (internal rotation). Damage to […]