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Show -_/_,'_____ Book 11. # Of the Heart. 718 are car- Under this outward row of Fibres is feared other ranks, which The rarksof fl.ll‘.y l'l'Hrs ate tier‘. to cathother, +115. f. i. will itta Thtl'ibrts are null great in thrii Ollgllis. m‘akej iiiinilmmi ried in oblique and fpiral pofiurcs toward the Cone, and feé'tions, being interwoven with divers other ranks of fichiy hints. l , am \\ ith from thence are rcfleéted toward the outward Compage of the Heart, windinn Circumvolutions, and tranfverle Bandages 3 whereupon they fecm tohConPtitute the inward Columns, to which the Cords 'i- of the Tri- . ' Cufpidal Mitral Valves are aflixed. , as fly Origens their near large molt are The molt inward fielhy Fibres many Trunks adjoyning to the Tendons of the Auricles, and grow lefs and leis as they branch themfelves in oblique or fpiral Pofitions toward the Cone f The innard iiiiies or the Vcnrrrtlesare Hit it large, and the more ' c lilikNUF flelliy liihr " MC muti..ly tumor ntd by "long Alemln'ancs, Liga- a Heart. , ‘ , k1 1'.t. :. g g. L|gflmun5 haunting out o'the rtrtlnn of the 1th Aarnle. other by firong Membranes, Ligaments and Fibrous branches +,_ which of the right Auricle keep the various ranks of Fibres clofe to each other, asmutual Auxrharies; So that they cannot part when they are engaged in a )oynt action, produ- cing the Syl‘tole of the Heart. . . The Arm or Interftices lodged between the interfcaions of Helhy Fibres, are molt of them Rhomboids, and fome of them Oval, and others Paral~ lelograms ‘ln Many Ligaments do arife out of the Tendon (encircling fome part of the left Auriele near the Bale of the Heart) and pals down the Wall relating to the left Chamber, and end in fonte few larger Ligaments, Which are fometime faltned about the top of a [trong pyramidal Column, which I con- For the prefent, I will not treat of Arteries and Veins of the Heart, but refer them to a fubfequent difcourle. Nerve.- Thc upper and greater (,artliatkl'lcx procrcdttli Item the Par wgnm and Nerves ariling out ut‘lnttrcollal branch, attording to DIJVIIM. having peculiar Fibres, if not Blood-velltls, and Nerves, and :re Auxiliary 0 iiid after the fame manner the mol'c inward rank of Helhy Fibres leated in the infide of the Ventricles are greateft and molt ftrong, and the neighbouring [s airs, as they more and more approach the ambient parts become lefs and . lefs in dimenfions. The Carnous Fibres are placed on each tide of the Columns, and interfeet each other after themauner of Latife-Wotk, and are firmly tied to each ceive is made up of many flelhy Fibres, giving {trength to the Ventriele, in reference to Motion. The Fibres (,F [l]; Heartdelived from the i eturreut lle right and left \‘enti'icle oi the Heart are adorzittl with an Arni- " r as \\'l:ll two Appendages, and in truth are [110 etc, littlL‘l'lx‘Jl'I'S, as i Mufcles litbft'ti'it'iit to the greater Machine of the Heart, and are like two Servants waiting at the doors of the ('Iliantbn‘s, to convey the Blood more readily into the greater Cillerns 0r l :iltes of this rare Engine of Motion. The right Auricle is allixed to the right tide of the 'iafe of the Heart, and doth cover the termination of the 11711 (Item (and not its ()rigens, as Great I'lflZz/t'zm coneeiveth) which hath its length fouiewhat aulii‘ering that mums, and libruus Brain chts. if. 1:. F. I. I i i i. '1 In. d em," 5 mt . "Ln ' Pb‘ts. f 7'. 15. F. i. (7 iii A P. K V l. ()f in tit/er if t/JC flan-1‘. The Heart is inchafed in every Region, with various Nerves and Nervous Fibres, partly proceeding from the recurrent Nerve, which about the Nodes of [{efleélion tranlinit many branches into the Polterior and Anterior Compage of the Heart, as alfo into its Surface. This Auricle is endued with foniewhat of a P ‘raniidal iiiuure as fume 1' " (a ) will have it, becaule it har't an oblong Bafe ending into a more acute Cone, and is not far extended above the Baie of the Heart. The B: fe of this Auricle being diftended with Blood, hath a Longitude far exceeding its Lrititude, and its outward furface doth much vary according to its Rt'plctiOn, by reafon when the Auricle is dillended, it is endued with an equal Convex Surface, and when it is rendred lank, as being emptied by the contraé‘tion of its Fibres, the Surface is full of roughnefs , as e‘ndued with many wrinkles, and its Surface is outwardly bedewed with watry Liquor, in which it is akin to the ambient parts of the Heart. The inward furface of this Auricle, encircling its Cavity, holdeth great of Furrows, as confilhing of many implications of Carnous Fibres ; So that it fecmeth in form: fort to outdo the Ventricles in eminent Alpcrities, and the dimenlions of the Auricles are rendred greater or lefs, as dil'tended or emptied of Blood. And hath its Connexion after this manner, as I humbly conceive; The left fide of its Bafe is conjoyned to the Confines and extreme parts of the fubltance of the Heart, where the anterior Region of the Vena Cam; is lodg- \‘Vhereupon it is adorned with two eminent Plexes diftributed into it; ed in the right Sims, and the right lide of the Bafe is connected to the body to which the Auricle is [0 united in its Anterior Region, as it feemeth to make one body with it, and in all other parts the Auricle feemeth to be free from all Connexion, and is lodged as well as the body of the Heart with and dextrous hand in DilTeétion) denied} in thefe words 5 Cum propagine: nerve/21 a [010 051m parir Ncrwo in Car Imimnum infemmur. Theft: Cardiack Nerves have great Divaricarions through the numerous ranks of flelhy Fibres, beletting the whole fuchance of the Heart, and are inferred into the Walls relating to both Chambers, and into the outward MemErane, every where encompafling and guarding this excellent Mufcle of the cart. CHAP. it; Analogy with that relating to the Ventricles of the Heart, and is linooth only where the Ve/m Carat: doth terminate, and for the molt part is rough and full the upper and greater paileth between the Aorta and Pulmonary Artery, and taketh its rife from great branches derived in each fide from the rPar Vagum; And all?) many conliderable Nerves of the Heart do arife out of the Intercofial branch; as Learned Dr. Willir will have it; which molt Ingenious Dr. Lower, very Skilful in the difcovery of the Nerves (as having a curious Ligand uhcu lunlt him: The Connexis on of the right, Auritlc. of the Val" Cir-viz ( according to the length of its infertion into the Heart) in the Confines of the @ericardinm, to which it is no where affixed by the interpolition of any Membrane. ' The left Auricle of the Heart is in conjunction with the termination of Uncommon of the let: the Pulmonary Vein, and is adorned with a kind of Pyramidal, or rather Oval 1- Figure, whofe Cone is more acute than that of the right Auricle, and is not carried upward (as is the Cone of the other Auricle) but bendeth fomewhar fidewife toward the left. The left Auricle in perfons of more mature years, or rather in old age, groweth much lefs in dimenfions than the right Auricle and the Qrilice leafed Ventritk‘. ‘lT, 1;. F. 1; bt'. |
