Chap. 2. Of the ascend∣ent Trunk of the great Ar∣terie.
THe distribution of the Arteries which alwaies in a manner, accompany the Veins, wil be more easy and short; because the dessemination of the Veins is already understood from what has bin said before.
The Arteria magna or crassa, the great or thick Artery the mother of the other Arteries, comes out of the left Ventricle of the Heart with a gapeing Orifice or vvide mouth; where within the Pericardium or Heart-Bag, it breeds from it self the Arteria
Coronaria, compassing the Basis of the Heart sometimes single, sometimes double, afterward, going out of the Heart-bag, tis divided into the lesser Trunk ascending, and the greater Trunk descending.
The lesser and upper Trunk resting upon the Wesand, does provide for all parts quartered above the Heart: and is divided into the Subclavius Ramus dexter, which is higher and much the larger, and the sinister, rising more low and going obliquely to the Arm.
Afterward the whole Trunk sustained by the Thymus, divides it self into two Carotides or Sleep-arteries une∣qual, which go right upwards.
The Arteriae subclaviae before they go out of the Chest (for then they are termed Axillares when they are out) from their lower part, do produce the Intercostales superiores to the Intervals of three or four of the upper Ribs; from their upper part. 1. The Mammariae. 2. The Cervi∣cales. 3. The Musculae.
From the Axillaris before it comes to the Arm, in the lower part, doth arise the Thoracica superior, Thoracica in∣ferior, and Scapularis: in the upper part, the Humeraria. The remainder, goes from the Axillary on each side to the Arm.