Question

For a distal paravertebral block in cattle, which spinal nerves are targeted to desensitize the flank? A) T3, T4, T5 B) L3, L4, L5 C) C1, C2, C3 D) T13, L1, L2

Answer 1

A distal paravertebral block in cattle to desensitize the flank area targets the spinal nerves T13, L1, L2. These nerves are part of the somatic nervous system, important for sensory innervation to the flank.

Step-by-step explanation:

When performing a distal paravertebral block in cattle to desensitize the flank area, the targeted spinal nerves are T13, L1, L2. The distal paravertebral block involves the administration of an anesthetic agent near the spinal nerves that provide sensory innervation to the flank, specifically at the exit points of the spinal cord. These nerves are responsible for transmitting sensory information, including pain, from the flank back to the spinal cord and the somatic nervous system.

It is important to accurately target these nerves to provide effective analgesia for procedures like surgery or treatment of injuries in the flank area. The thoracic nerve T13 and the lumbar nerves L1 and L2 emerge from the respective intervertebral foramina and are thus anesthetized to achieve the desired level of sedation and pain relief.

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