Age determination by Dentition, Importance of Cornual nerve

Multiple-Choice Questions (MCQs)

1. At what age do deciduous teeth typically erupt in cattle?
   • A) 2 to 6 weeks
   • B) 6 to 12 weeks
   • C) 3 to 6 months
   • D) 1 to 2 years
     Answer: A) 2 to 6 weeks
2. Which permanent teeth erupt first in cattle?
   • A) Lateral incisors
   • B) Central incisors
   • C) Corner incisors
   • D) Medial incisors
     Answer: B) Central incisors
3. The cornual nerve is a branch of which nerve?
   • A) Facial nerve
   • B) Trigeminal nerve
   • C) Vagus nerve
   • D) Accessory nerve
     Answer: B) Trigeminal nerve
4. What is the primary purpose of a cornual nerve block during horn amputation?
   • A) To prevent bleeding
   • B) To provide anesthesia and reduce pain
   • C) To facilitate healing
   • D) To improve recovery time
     Answer: B) To provide anesthesia and reduce pain
5. What anatomical structure is associated with the superficial temporal artery?
   • A) Horns
   • B) Ears
   • C) Scalp and face
   • D) Neck
     Answer: C) Scalp and face
6. When do corner incisors typically erupt in cattle?
   • A) 1 to 1.5 years
   • B) 2 to 2.5 years
   • C) 3 to 3.5 years
   • D) 3.5 to 4 years
     Answer: D) 3.5 to 4 years
7. Which procedure is performed to manage excessive salivation or injuries to the parotid duct?
   • A) Esophagotomy
   • B) Tracheotomy
   • C) Ligation of Stenson’s duct
   • D) Cornual nerve block
     Answer: C) Ligation of Stenson’s duct
8. What happens if the superficial temporal artery is damaged during horn amputation?
   • A) Increased pain perception
   • B) Excessive bleeding
   • C) Reduced anesthesia effectiveness
   • D) No significant effect
     Answer: B) Excessive bleeding
9. The degree of wear on teeth can help estimate the __________ of cattle.
   • A) Weight
   • B) Breed
   • C) Age
   • D) Health status
     Answer: C) Age

True/False Statements

1. Deciduous teeth are also known as milk teeth. (True)
2. The first permanent teeth to erupt in cattle are corner incisors. (False)
3. The cornual nerve provides sensory innervation to the horn area. (True)
4. The superficial temporal artery supplies blood primarily to the legs. (False)
5. The dental formula for adult cattle includes canines. (False)
6. Cornual nerve blocks are not necessary during horn amputation procedures. (False)
7. The eruption of permanent teeth begins around six months of age in cattle. (True)
8. The wear on teeth increases with age due to grazing habits. (True)
9. Stenson’s duct is located near the first maxillary molar. (False)
10. Effective management of hemostasis is important during horn amputation procedures. (True)

Fill in the Blanks

1. Deciduous teeth typically erupt between __________ weeks of age.
   Answer: 2 to 6
2. The central incisors in cattle usually erupt at __________ years.
   Answer: 1.5 to 2
3. The __________ nerve is blocked during horn amputation for anesthesia.
   Answer: Cornual
4. The superficial temporal artery supplies blood to the __________ and face.
   Answer: Scalp
5. The dental formula for adult cattle is represented as 2 I 1/4 C 0/0 P 3/3 M 3/3)2 I 1/4 C 0/0 P 3/3 M 3/3) which indicates no __________.
   Answer: Canines
6. Corner incisors typically erupt between __________ years.
   Answer: 3.5 to 4
7. The degree of wear on a cow’s teeth can indicate its __________.
   Answer: Age
8. Stenson’s duct is located near the __________ maxillary molar.
   Answer: Second
9. Excessive bleeding can occur if the __________ artery is damaged during dehorning.
   Answer: Superficial temporal
10. Effective pain management during horn amputation improves animal __________.
    Answer: Welfare