Dr. Willis's practice of physick being the whole works of that renowned and famous physician wherein most of the diseases belonging to the body of man are treated of, with excellent methods and receipts for the cure of the same : fitted to the meanest capacity by an index for the explaining of all the hard and unusual words and terms of art derived from the Greek, Latine, or other languages for the benefit of the English reader : with forty copper plates.

The Thirteenth Table. (Book 13)

FIGURE I.

Shews the branchings forth of the Vertebral Artery reaching out on both sides in to the superiour part of the Spinal Marrow, and into the hinder Region of the oblong Marrow.

• A. A. The Region of the posterior oblong Marrow.
• B. The common passage made from both the Vertebral Arteries united together.
• C. The Rhomboidal Figure, which in Brutes a double coalition of the Vertebral Arteries describes.
• D. The first joyning together of the Vertebral Arteries above the Spinal Marrow, from which place the Spinal Artery descends.
• E. The Spinal Artery.
• F. F. Two Vertebral Arteries carried from the axillary branches.
• G. The Spinal Marrow.
• f. f. f. f. &c. Arterious shoots into the muscles of the Neck.
• g g· gg· Shoots sent in the Spinal Marrow which joyn together from either side in the Spinal Marrow nigh the several joynings of the Vertebrae.
• h. h. h. h. Arterious shoots, which following the chanels of the Bosoms, make the arterious Infolding, as it is de∣scribed in the third Figure.
• f. f. Two Arteries sent down from the Aorta into the Spine.

FIGURE II.

Shews the Vertebral Veins which are Companions to the abovesaid Arteries; also the upper portion of the Vertebral Bosom and the communications of either among themselves and lateral Bosoms of the Head, and between the Jugular Veins

• A. The third Bosom of the Head cut off, where it passes into its lateral Bosoms.
• B. B. The lateral Bosoms of the Head.
• C. C. The round Den where the lateral Bosom goes on both sides into the Jugular Vein.
• D. D. The Jugular Vein.
• E. The upper joynt of the Vertebral Bosoms.
• F. F. The Vertebral Bosom on either side within the Skull brought through, and there passing into the lateral Bosom.
• G. G. The Trunk of either Vertebral Vein brought from the Vena Cava, and there beginning.
• H. H. Either Trunk of the Vertebral Bosom there cut off, which lower is continued through the whole passage of the Spine.
• h. h. h. h. h. h. The joynings together on both sides within the Commissures of the Vertebrae between the Vertebral Vein and Vertebral Bosom.
• i. i. i. i. The Veinous passages, which reaching out before without the Vertebrae, are carried from the Vein of one side to its fellow of the other side.
• I. I. The communication of all the Bosoms and Veins in the top of the Spine.
• k. k. The Veinous passage from the concourse of the Bosoms and Veins on both sides into the Jugular Vein.
• l. l. l. l. &c. The joynings together of the Bosoms of either side near the Internodia of the Vertebrae.
• m. m. m. m. &c. The passages of the Veins carrying back the Blood from the Spinal Marrow into the Bosoms.
• n. n. n. n. &c. The Chanels of the Veins carrying back the Blood from the muscles of the Neck.

FIGURE III.

Shews the Spinal Artery which is produced within the bony Den nigh the more inward Superficies of the Marrow, from the hinder part of the Head to the Os Sacrum, in the shape of a Net-work purl.

• a. a. a. a. Arterious shoots sent towards the Spine from the Vertebral Artery ascending between the holes of the Spinal Processes.
• b. b. b. b. &c. Arterious shoots sent from the Aorta towards the Spine.
• c. c. c. c. &c. An Arterious shoot reaching out of every of the aforesaid shoots into the posterior Marrow.
• d. d. d. d. &c. Another shoot reaching out of every of the aforesaid shoots into the anterior Marrow.
• e. e. e. e. &c. Every the aforesaid Arterious shoots, as soon as carried into the bony v Den becoming forked, send forth a little branch into either part, which on both sides communicates with the next branch of the same side, and by the cross Process with the fellow-branch of the other side.
• f. f. f. f. The joynings together of the Arteries of either side by the cross shoot.
• g. g. The Arterious shoots going out of the Os Sacrum.
• h. h. Arterious shoots into the Mening•…•… of the hinder part of the Head.
• i. i. Arterious shoots going out of the Skull with the Nerves of the seventh pair.
• k. k. Shoots reaching out into the wonderful Net, which in their progress are ingraffed mutually among them∣selves, and also with the Arteries Carotides.

Tab. XIII.

[illustration]

Fig. III.

[illustration]

Fig. I.

[illustration]

Fig. II.

[illustration]

Fig. IV

[illustration]

Fig. V

PP. p. 156

FIGURE IV.

Shews the Branchings out of the Spinal Bosom in its whole passage.

• A. The uppermost joyning of the Bosoms of either.
• B. B. Chanels reaching out of either Vertebral Bosom into the Lateral Bosoms of the Head.
• C. C. Chanels brought from the common concourse of the Bosoms, and the Vertebral Veins into the Jugular Veins.
• D. D. The Vertebral Veins.
• e. e. A communication between the Spinal Bosom and the Vertebral Vein.
• f. f. f. f. The passages of the Veins from either Bosom into the Trunk of the Vertebral Vein.
• g. g. g. g. &c. •…•…he like Venous passages which are continued lower into the branches of the Vein Azygos, and lastly into the lumbary shoots of the Vena Cava.
• h. h. h. h. &c. The Pipes of the Veins, which receiving the blood from the Spinal Marrow carry it back into the Bosoms.
• i. i. i. i. &c. The commissures or joynings of the Bosoms of either side nigh the several joyntings of the Vertebrae.

FIGURE V.

Shews the Image of the Spinal Bosom in a Dog, which hath not joynings together in its whole passage, as it is in a Calf, Sheep, Hog, and many others, but only in the lowest and uppermost part, where it communicates with it self by three or four cross Processes.