Keith, Sir Arthur

(redirected from Sir Arthur Keith)
Also found in: Dictionary, Thesaurus, Encyclopedia.

Keith,

Sir Arthur, Scottish anatomist, 1866-1955.
Keith bundle - modified cardiac muscle fibers. Synonym(s): atrioventricular bundle
Keith and Flack node - the mass of specialized cardiac muscle fibers that normally acts as the pacemaker of the cardiac conduction system. Synonym(s): Flack node; Keith node; sinuatrial node
Keith node - Synonym(s): Keith and Flack node