Equine Internal Organs

What is the structure of the horses mouth

• incisors for biting, molars for grinding 36-44 teeth

• flat pad and teeth for chewing

• 20-25 teeth with important canines for tearing food

• horse grabs grass with the tongue

How much saliva is produced by the horse daily

• constant saliva produced around 30litres per day

• saliva is produced when the horse chews so depends on diet - approx 10-12 litres per day

• very little saliva produced

• no saliva produced

How can the oesophagous be described

• a muscular tube of approx 1 metre that carries food from the mouth to the stomach via PERISTALSIS

• A tube carrying air into the lungs

• a tube of about 30 metres in the small intestine

• part of the liver

How big is the stomach in an average horse?

• tennis ball sized

• basketball sized

• golf ball sized

• rugby ball sized

Identify the most accurate description of the horses' liver

• small round organ near the heart

• large flat lobed triangle shaped organ approx 5Kg within the ribcage

• 1kg square shaped organ near the large intestines

• large rectangular organ at 20Kg

food moves through the equine stomach in approximately what time?

• 5 minutes

• 20 minutes

• 45 minutes

• 5 hours

The small intestine is how long approximately in the horse?

• 1 metre

• 9=10 metres

• 22-25 metres

• 50-60 metres

which best describes the structure of the caecum

• a flat lobed organ producing hormones

• a muscular tube connecting the mouth to the stomach 1 metre in length

• a rugby ball sized structure in the small intestine holding 9-15 litres containing lots of digestive enzymes

• A blind ended, muscular fermentation sac in the large intestine around 1.2 metres in length that holds up to 36 litres of material and a large microorganism population

the large colon is approximately how long in the horse?

• 1 metre

• 3 metres

• 5 metres

• 10 metres

the small colon is the main site of water re-absorption in the digestive system. What is the diameter of the small colon in the horse

• 1 cm

• 5cm

• 10 cm

• 20 cm