ORIGIN, ANATOMY AND POINTS OF SHEEP. 



1003 



2— The 

 id also out of danofer. 



The Hind Leg.— 1 — The thigh bone. 2 — The stifle joint and its bone, 

 the patella. 3^The tibia, or bone of the upper part of the leg. 4 — 

 The point of the hock. 5 — The other bones of the hock. 6 — The 

 metatarsal bone, or bone of the hind leg. 7 — Rudiment of the small 

 metatarsal. 8 — A sessamoid bone. 9 — The two nrst nones of the foot, 

 the pasterns. 10 — The proper bone of the foot. 



It will be seen that the general anatomy of the sheep corresponds to 

 that of the ox. In the limbs we find the number of jonits the same in 

 the horse, ox and sheep. Beneath the fetlock, however, the four bones 

 are doubled in the sheep. 



IV. Top and Vertical Views of Skull. 



The first illustration shows the skull of a polled sheep as seen from 

 the top. 



Explanation. — 1 — Occipital bone, depressed out of danger, 

 parietal bones, the suture having disappeared, 

 3 — The squamous portions of the temporal 

 bone — the buttress of the arch of the skull. 

 4 — The meatus auditorius, or bony opening 

 into the ear. 5 — The frontal bones. 6 — The 

 openings through which blood-vessels pass, to 

 supply the forehead. 7 — The bony orbits of 

 the eye. 8 — The zygomatic or mokr bones, 

 very much developed. 9, 10 — The bones of 



the nose. 1 1 — The upper jaw bone. 1 2 — The foramen, through which the 

 '-erve and blood-vessels pass, to supply the lower part of the face. 13 — 

 The nasal processes of the intermaxillary bones. 14 — The palatine 

 processes. 15 — The intermaxillary bone, supporting the cartilaginous 

 pad, instead of containing teeth. 



Next we give a vertical section of the head with its appropriate expla- 

 nation. 



Explanation.— 1— Nasal bone. 2— Upper jaw boi 3 — Intermaxil- 

 lary bone supporting the pad, supplies the place of upper front teeth. 4, 

 4 — The frontal sinus. 5 — Cavity or 

 sinus of the horn, communicating 

 with the frontai sinus. It is here 

 shown by removal of a section of 

 the base of the horn. 7 — The fron- 

 tal bone. 8 — Vertical section of the 

 brain. 9 — Vertical section of the 

 cerebellum, a — The cineritious por- 

 tion of *he brain, b — The medul- 

 lary portion of the brain. 10 — ^The ethmoid bone. 11 — The cribif oral 



SKULL OV A POLLED SHEEP. 



HEAD OF SHEEP— VERTICAL SECTION. 



