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used to correct abnormal electrical activity of the heart like when terminating a fibrillation: Vascular stents: used to mechanically open up a coronary artery occlusion, generally due to atherosclerosis: Pacemaker: used to correct the hearts rate and rhythm
Cellular cardiomyoplasty is a method which augments myocardial function and cardiac output by directly growing new muscle cells in the damaged myocardium (heart muscle). ). Tissue engineering, which is now being categorized as a form of regenerative medicine, can be defined as biomedical engineering to reconstruct, repair, and improve biological tis
used in mastoid surgeries to retract overlying tissues Staecke's guide and protector: used in mastoid surgeries Chisel: removing parts of bones Mastoid gouge: removing parts of mastoid bones MacEwen's cell seeker with curette: used to curette within the mastoid Lempert's curette or scoop: removing parts of the nasal septum: Killian's nasal bone ...
ACTC1 encodes cardiac muscle alpha actin. [ 5 ] [ 6 ] This isoform differs from the alpha actin that is expressed in skeletal muscle, ACTA1 . Alpha cardiac actin is the major protein of the thin filament in cardiac sarcomeres, which are responsible for muscle contraction and generation of force to support the pump function of the heart.
It employs pacemaker cells that produce electrical impulses, known as cardiac action potentials, which control the rate of contraction of the cardiac muscle, that is, the heart rate. In most humans, these cells are concentrated in the sinoatrial (SA) node , the primary pacemaker, which regulates the heart’s sinus rhythm .
T-tubules (transverse tubules) are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells.With membranes that contain large concentrations of ion channels, transporters, and pumps, T-tubules permit rapid transmission of the action potential into the cell, and also play an important role in regulating cellular calcium concentration.
These are known as transverse-tubules (t-tubules), which are also found in skeletal muscle cells and allow for the action potential to travel into the centre of the cell. [7] Special proteins called L-type calcium channels (also known as dihydropyridine receptors (DHPR)) are located on the t-tubule membrane and are activated by the action ...
Access instrument. Used to create an opening into a space without opening the abdominal cavity. A camera is inserted through one to view the interior while instruments are inserted through the others to manipulate the organs. Ultrasonic energy device Surgical device typically used to dissect tissue, but also seals small vessels and tissue bundles