Horse

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Horse
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Classification
Kingdom Animalia
Phylum Chordata
Class Mammalia
Subclass Theria
Infraclass Eutheria
Order Perissodactyla
Family Equidae
Genus Equus
Species E. ferus
Subspecies E. f. caballus

• The Horse is a single-hooved (ungulate) mammal
  belonging to the taxonomic family Equidae. The
  horse has evolved over the past 45 to 55 million
  years from a small multi-toed creature into the
  large, single-toed animal of today. Horses in the
  subspecies caballus are domesticated, although
  some domesticated populations live in the wild as
  feral horses. These feral populations are not
  true wild horses, as this term is used to
  describe horses that have never been
  domesticated, such as the endangered Przewalskis
  Horse, a separate subspecies, and the only
  remaining true wild horse.

The horses' anatomy enables them to make use of
speed to escape predators and they have a
well-developed sense of balance and a strong
fight or flight instinct. Related to this need to
flee from predators in the wild is an unusual
trait horses are able to sleep both standing up
and lying down. gestation lasts for approximately
335340 days and usually results in one foal,
twins are rare in horses. Horses are a precocial
species, and foals are capable of standing and
running within a short time following birth.
Horses are herbivores with a digestive system
adapted to a forage diet of grasses and other
plant material, consumed steadily throughout the
day. Therefore they have a relatively small
stomach but very long intestines to facilitate a
steady flow of nutrients.
http//en.wikipedia.org/wiki/Horse
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Skeleton of pelvis and hindlimb
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1. Coxal tuber of ilium (point of haunch) 2. Wing
of ilium 3. Sacral tuber of ilium (point of
croup) 4. Ilium of pelvic bone 5. Greater
ischiatic notch in dorsal border of ilium of
pelvic bone (converted into a greater ischiatic
foramen by sacrosciatic ligament) 6. Ischiatic
spine 7. Lesser ischiatic notch in dorsal border
of ischium of pelvic bone (converted into a
lesser ischiatic foramen by sacrosciatic
ligament) 8. Ischium of pelvic bone 9. Ischiatic
tuber (point of buttock or seat bone) 10.
Obturator foramen (Normally blocked my obturaor
foramen) 11. Hip joint 12. Pecten of pubic
bone 13. Pubis of pelvic bone
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1. Supf. Inguinal ring 2. Wing of ilium 3.
Muscular lacuna 4. Greater ischial notch 5.
Ischial spine 6. Body of iscium 7. Ischial
tuber
8. Tabula of ischium 9. Pelvic symphysis 10.
Pecten 11. Groove for obturator n. and
vessles 12. Psoas minor tubercle 13. Arcuate line
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1. Coxal tuber
2. Iliac crest
3. Wing of ilium
4. Sacral tuber
5. Sacropelvic surface
6. Body of ilium and ventral caudl iliac spine

7. Psoas line 8. Arcuate line 9. Pelvic
symphysis 10. Body of ischium 11. Ischial
tuber 12. Ischial arch
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1. Tabula of ischium
2. Ischial tuber
3. Body of ischium
4. Coxal tuber
5. Wing of ilium
6. Sacropelvic surface
7. Aurciular surface
8. Acetabulum
9. Obturator foramen
10. Pelvic symphysis

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