The fifth. 
A. 5. 
( t * 8 ) 
T he fifth Vertebra is of the fame Dimenfions with the other 
two, and differs in nothing from them but by its Spinal Procefs, 
which from \ Inch in the former arifes to 1 \ in this, being j 
Inch broad, and thin at the Extremity. 
Thefixth. The fixth Vertebra differs from all the reft in its tranfverfe 
A. 6. Procefs, which is as far forward as the reft, and fends out ano- 
ther Procefs, which runs a' backward ; fo that from the Extre- 
mity at the fore-part to that at the back-part, ’tis ; Inches. It 
Fig • 3. alio leads another Protuberance obliquely outward 1 \ Inch (i i.) 
At this Procefs the Cervical Artery pafles out from the tranfverfe 
Procefs of the Vertebra , and Only fend a Twig to the 
TUfevcnih. Seventh Vertebra y or laft of the Neck, which differs from all 
the reft, ift. In the length of its Spinal Procefs, which is aug- 
mented from 7 Inches in the former to 5 in this (g.g.) 2. In 
the fmallnefs of the Hole for the Cervical Artery id. d.) this be- 
ing the laft perforated tranfverfe Procels, as is faid. 3. In a Smut. 
on each fide of its Body behind (i. i.) whereinto it receives part 
of the firft Rib. 
The Thorax, ^he Thorax is divided into the Vertebra, Ribs, and Sternum : 
u 11 There are 39 Vertebra, correfpondent to fo many Pair of Ribs ; 
they differ nothing from the former, except that their Body is. 
more Protuberant, that their Spinal Proceffes are augmented and 
dimiihed in their length, acco ding to their Situation, and that 
they have a Sinus in each fide, both before and behind, for Re- 
ception of their reipecTive Ribs: For the Weight and Dimenfi- 
ons of their Spinal Procefies fee the following Table. 
Rihs. The Rjijg are divided into the true ( which are articulated 
with the Sternum) and falfe ones, with ; and without Cartilages. 
There are 8 fair of true Ribs, 8 Pair falfe with, and without 
Cartilages. The Cartilages here are foft, as in Human Subjects, 
and not boney, as in Oxen, Harts, &c. The length of the 
Ribs both from the one Extremity to the ether, and aiong their 
inner Surface, that you may the better know how much they 
are bended, with their breadth at the Fxtremity and Weight of 
each Pair, (hall be given in the following Table. 
Sternum- The Sternum confifa of four Bones 3 they are plac’d edgewife, 
being two Inches thick above, and (harp below : From the fore- 
part to the Point of the Cartilage Enfifovmis ’tis 25 Inches • where- 
of the firft is 88 Inches long, and 4 i Inches broad at theArticula- 
tion of the firft Rib ; the fecond 4 f Inches long, and 3 Inches 
broad 3 the third 3. f laches long, and 3. Inches broad j the 4th 
4 la- 
