Which deep tendon reflex is associated with the biceps and triceps?

The deep tendon reflex associated with the biceps and triceps is linked to the spinal nerves C6 and C7. This is because these nerves innervate the muscles responsible for these reflex actions. When assessing the biceps reflex, the contraction of the biceps muscle indicates an intact C5 and C6 spinal nerve pathway. The triceps reflex primarily assesses the C7 spinal nerve but can also be influenced by C6.

C6 and C7 are crucial for motor control and reflex actions in the upper extremities, as they provide the necessary neural connections to trigger these reflexes. A properly functioning biceps or triceps reflex signifies that these nerve roots are intact and able to transmit the necessary signals for muscle contraction in response to a stimulus.

Other options are related to different areas of reflex activity. For instance, the lumbar region influences leg movements, while the S1 nerve primarily deals with the Achilles reflex in the ankle area. Focusing on the C6 and C7 regions emphasizes the upper body reflexes, specifically those involving the biceps and triceps.