Mikrokosmographia a description of the body of man. Together vvith the controuersies thereto belonging. Collected and translated out of all the best authors of anatomy, especially out of Gasper Bauhinus and Andreas Laurentius. By Helkiah Crooke Doctor of Physicke, physitian to His Maiestie, and his Highnesse professor in anatomy and chyrurgerie. Published by the Kings Maiesties especiall direction and warrant according to the first integrity, as it was originally written by the author.

IN THE INFANT.

To be Borne,	Already Borne,
Do Worke,	Are Idle.	Do Worke,	Are Idle.
1. The Chorion, the stomacke beeing idle.	1. The Stomacke, the Chorionwor∣king.	1. The Stomacke, the Chorion beeing I∣dle.	1. The Chorion, the Stomacke vvork∣ing.
2. The Vmbilicall vessels, the vessels of the Mesenterie being idle.	2. the vessels of the Mesentery, the vessels of the na∣uell working.	2. The vessels of the Mesenterie, the Nauell vessels be∣ing idle.	2. The Nauill ves∣sels, the vessels of the Mesenterie working.
3. The ••rachus, the Vreters being y∣dle.	3. The Vreters, the vrachos vvork∣ing.	3. The Vreters, the Vrachos beeing I∣dle.	3. The Vrachos, the Vreters work∣ing.
4. The Inoculations of the Heart, the Rough Artery or Weazon being i∣dle.	4. The weazon or Rough Artery, the Inoculations working.	4. The Rough Arte∣rie, the Inocula∣tions beeing I∣dle.	4. The Inoculations of the Heart, the rough artery wor∣king.

The Exposition of the Table.

Euen as the operation at certaine times, and the rest at others, of the three first, to wit, the Chorion, the Nauell vessels and the Vrachos is answerable to the other three set against them, to wit, the Stomacke, the Mesentery vessels and the vreters, each one respecting his consort or substitute in the administration of one and the same thing necessary to life: so likewise is there the same succession of operation and rest at different times betweene the fourth paire of Consorts, to wit, the inoculations of the heart and the rough Arterie or * 1.1 Weazon, in the administration of one and the same thing necessary to life.

For seeing there can be nothing found nor imagined in the whole bodye, which in the wombe, when the rough artery is at rest, should supply his office which is necessarie to life, vnlesse it be the inoculations of the vessels of the heart; which inoculations in the wombe do worke but cease their labour when the infant is borne, the rough Artery then vnderta∣king his incessant labour himselfe: it must needs follow that the vse of the inoculations in the wombe is the very same that there is of the rough artery after the infant is borne. Now all men acknowledge that the rough artery is ordained for the transuection or transporta∣tion of the externall and ambient aer to the Lunges of the infant which prepare it, for the heart standeth in neede of aer so altered. Wherefore the true vse and office of the in∣culations (which onely haue vse whilst the infant is in the wombe) is the transvection or transportation of aer (but that internall comming out of the Mothers womb through the Ch••rion and the vmbilicall vessels) to the same Lungs of the infant which are to prepare it for his heart.

The last limit is the eleauenth moneth, the times betweene are the ninth and the tenth.

* 1.2 This is Rossets opinion, wherein he laboureth to establish, that both the Anastomoses or inoculations are appoynted onely to leade ayre to the Lungs, and that by them the In∣fant doth respire and the Lungs are moued for the new generation of vitall spirits. But our * 1.3 opinion is, that the Infant doth not at al Respire but Transpire only, as we shal shew in the next question; neither yet doe we thinke that it was necessary there should haue bin made so notable inoculations if only the conueyance of ayre to the Lungs had bin necessary. For seeing in perfect creatures and those that haue most vse and strength of voyce, there is but one weazon or rough Artery ordayned, why should not one inoculation haue serued in the Infant whilest yet he maketh no vse of his Lungs for voice? It had bin more probable if he had said, that one of the Inoculations was made to leade ayre the other to lead bloud.

Moreouer if onely ayre be ledde by these inoculations to the vessels of the Lungs, why doth there appeare in the venall Artery so redde bloud, and in the arteriall veine arteriall bloud full of spirits? With what bloud shall the red and thicke Lungs of the Infant be nou∣rished? In a tender Infant that Transpiration which is made by the arteries & other blind passages is sufficient for the conseruation and refection of his weake heat.

We conclude therefore that both the inoculations were originally made to generate and nourish the Lungs, because whereas the Lungs of an Infant before birth do differ frō * 1.4 his lungs after birth, in colour, thicknesse and fastnes of flesh; they needed also another kind of bloud for their generation and nourishment before then they do after. And thus we are come to an end of that admirable worke of Nature in the inoculations of the vessels of the Infants Heart.

Notes

• * 1.1

  Rosse•• his de∣monstration.
• * 1.2

  The 11. mōth the last time.
• * 1.3

  Rossets opinion disproued.
• * 1.4

  The conclusi∣on.