Equine Thorax

Question 1

Number of thoracic vertebrae in the horse

Answer 1

18

Question 2

___ pairs of ribs

Answer 2

18

Question 3

Borders of lung ascultation

Answer 3

Dorsally: line connecting tuber coxae w/ caudal border of triceps along epaxial muscles

Ventrally: line connecting tuber coxae and olecranon process; from 6th, 11th, and 16th intercostal spaces

Cranially: line from epaxial muscles along long head of the triceps m.

Question 4

Lung biopsy parameters

Answer 4

• both sides
• 7th/8th intercostal space, 3 inches dorsal to line from olecranon to tuber coxae

Question 5

Liver biopsy parameters

Answer 5

• right side
• 12th to 14th intercostal spaces between line from tuber coxae to olecranon process & tuber coxae to point of shoulder

Question 6

Location of heart

Answer 6

Mostly on left side of thorax at 2nd-6th intercostal spaces

Question 7

Basal border of lungs

Answer 7

6th, 11th, 16th intercostal spaces

(Lungs end here)

Question 8

Diaphragmatic hernias

Answer 8

• caused by rupture of diaphragm (foaling, running, etc)
• occurs mostly on L side in horses
• causes colic

Question 9

Costodiaphragmatic recess

Answer 9

Space between diaphragmatic pleura and costal pleura

Question 10

Line of pleural reflection

Answer 10

• from 9th intercostal space to 17th intercostal space
• separates thoracic and abdominal cavity

Question 11

How to perform thoracocentesis

Answer 11

Place needle 2 in cranial to line of pleural reflection in the 6th or 7th int. space on R side & 7th or 8th space on L side