ae 
Is. ‘The art east ; the vems 
y themselves. pit and chest veins; the nerves are 
ne The lymphatics empty themse! 
€, to suckle new born infants. 
PLEURA. 
mbrane lining the internal surface of the chest, and covering 
t It forms a great process called the middle division of 
- arising from its doubling, which separates the chest per- — 
-pendicularly into two cavities. Itis connected with the ribs, muscles, — 
breast bone, bodies of the back joints Covering of the heart, a 
i n nce, ou cular. Its use, is to di 
ities, and Surface moist by the va-_ 
and to give a membrane to the lungs and heart. 
eee 
= DIAPHRAGM, OR MIDRIFF. 
Its upper surface 
ing membrane of — 
ures are, the right hole, thro 
1c right auricle of the 
¥ into the Single y 
a f th 
