Equine Head Regional Anaesthesia

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Questions and Answers

Which nerve branch should be blocked if you want to anesthetize the premolars and molars of a horse?

  • Supraorbital branch
  • Infraorbital branch
  • Mandibular branch
  • Maxillary branch (correct)

What is the location of the maxillary foramen in relation to the horse's eye?

  • Inside the horse's eye
  • Behind the horse's eye
  • Above the horse's eye
  • Beneath the horse's eye (correct)

How can the proximal site of the mandibular foramen be determined?

  • By measuring the distance between the incisors
  • By examining the occlusal surface of the teeth
  • By drawing a cross on the side of the horse's face (correct)
  • By palpating the mental foramen

Which nerve branch enters the mandibular foramen and comes out at the mental foramen?

<p>Mandibular branch (A)</p> Signup and view all the answers

Where is the infraorbital foramen located?

<p>Beneath the horse's eye (A)</p> Signup and view all the answers

What is the purpose of blocking the maxillary nerve at the maxillary foramen?

<p>To block the premolars and molars (D)</p> Signup and view all the answers

What is the method for entering the back of the horse's eye through the supraorbital fossa?

<p>Using a straight spinal needle (D)</p> Signup and view all the answers

What is the potential problem with pushing through an area that might have neoplasia or infection?

<p>It could cause cellular debris to move to the back of the eye (D)</p> Signup and view all the answers

Which nerve is responsible for sensory innervation of the periorbital region in horses?

<p>Opthalmic nerve (C)</p> Signup and view all the answers

Which nerve block is performed to desensitize the ciliary body and inner part of the eye in horses?

<p>Retrobulbar nerve block (C)</p> Signup and view all the answers

Which nerve block is performed to desensitize the skin over the zygomatic bone in horses?

<p>Zygomatic nerve block (D)</p> Signup and view all the answers

Which nerve block is performed to desensitize the area adjacent to the lateral canthus of the eye in horses?

<p>Lacrimal nerve block (D)</p> Signup and view all the answers

Which nerve block is performed to desensitize the medial campus in horses?

<p>Infratrochlear nerve block (B)</p> Signup and view all the answers

Which nerve block is performed to desensitize the supraorbital region in horses?

<p>Supraorbital nerve block (D)</p> Signup and view all the answers

Which nerve block is performed by curving a spinal needle around the back of the eye in horses?

<p>Retrobulbar nerve block (B)</p> Signup and view all the answers

Which nerve block is performed to desensitize the periorbital region in horses?

<p>Supraorbital nerve block (B)</p> Signup and view all the answers

Which nerve block is performed to desensitize the skin over the zygomatic bone in horses?

<p>Zygomatic nerve block (A)</p> Signup and view all the answers

Which nerve block is performed to desensitize the area adjacent to the lateral canthus of the eye in horses?

<p>Lacrimal nerve block (B)</p> Signup and view all the answers

Which nerve block is performed to desensitize the ciliary body and inner part of the eye in horses?

<p>Retrobulbar nerve block (C)</p> Signup and view all the answers

Which nerve block is performed by curving a spinal needle around the back of the eye in horses?

<p>Retrobulbar nerve block (D)</p> Signup and view all the answers

Which nerve block is performed to desensitize the inside of the eye and the motor function as well in horses?

<p>Retrobulbar nerve block (A)</p> Signup and view all the answers

Which nerve block is performed to desensitize the frontal nerve in horses?

<p>Supraorbital nerve block (C)</p> Signup and view all the answers

Which nerve block is performed to desensitize the infraorbital region in horses?

<p>Maxillary nerve block (C)</p> Signup and view all the answers

What is the purpose of blocking the mental nerve at the mental foramen in horses?

<p>To desensitize the medial campus (A)</p> Signup and view all the answers

What is the potential problem with pushing through an area that might have neoplasia or infection?

<p>Moving cellular debris to the back of the eye (C)</p> Signup and view all the answers

Which nerve block is performed by entering through the supraorbital fossa and using a straight spinal needle to reach the back of the horse's eye?

<p>Supraorbital nerve block (C)</p> Signup and view all the answers

Which nerve branch should be blocked if you want to anesthetize the premolars and molars of a horse?

<p>Maxillary nerve branch (C)</p> Signup and view all the answers

What is the location of the maxillary foramen in relation to the horse's eye?

<p>Just beneath the horse's eye (C)</p> Signup and view all the answers

Which nerve block is performed to desensitize the skin over the zygomatic bone in horses?

<p>Supraorbital nerve block (D)</p> Signup and view all the answers

Which nerve block is performed to desensitize the ciliary body and inner part of the eye in horses?

<p>Maxillary nerve block (A)</p> Signup and view all the answers

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