A mechanical essay upon the heart, in three anatomical lectures. Wherein I. The heart is demonstrated to be a compleat epitome of myology ... II. The origin and nature of the blood ... III. The praeternatural state of that fluid / By William Wood.

Wood, William, 1688-

Date:: 1729

Credit: A mechanical essay upon the heart, in three anatomical lectures. Wherein I. The heart is demonstrated to be a compleat epitome of myology ... II. The origin and nature of the blood ... III. The praeternatural state of that fluid / By William Wood. Source: Wellcome Collection.

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$THIS I am going to exemplify in the Myological De~ fcription of this wonderful Machine. And as the Attempt is intirely new (to the belt of my Knowledge) fo I hope, lhould I not exactly fucceed, I am in a great meafure excufable upon that account. I proceed thus: ali Prif- THE firft of thele eight Species is a Range of flelhy 'dire^i-Fibres inform of are&angular Prilm, and are accordingly call'd Mufculi Rrifmatici dire fti. \See Plate 2. Fig. 2.] THUS that Plan of Fibres, which is the firft and outmoft, and by much the fineft of all, runs at right Angles from their Origin in the Tendon of the right Ventricle, and from the fide of the Pulmonary Artery in ftraight Lines, and terminate on the Point of the Heart, which exaftly agree with this firft Species. [SeePlate 2. Fig. 7.] (li THE fecond Species is from Fibres running obliquely from boi_ their Rife, and form an oblique-angled Prifm, and are com¬ monly call'd Mufculi Rhomboidales. This Species is evidently feen lying immediately under the ftraight Fibres of the Heart juft mention’d. They have their Origin from the Tendons en¬ circling the Aorta and left Ventricle, winding obliquely to the right fide downwards to the Apex, when they alcend again by feveral fpiral Circumvolutions upon the left Ventricle, till they reach the Bafis of the Heart, where they are inferted. [See Plate 2. Fig. 7, 3-j iSpi_ THESE Windings form likewife the third Species of bicu- Mulcles, which are call'd Mufculi Sfir ales Orbiculares. £See Plate 2. Fig. 2, 3,4,6, ££7.]$