Posterior cord syndrome affects sensation related to which of the following?

Posterior cord syndrome primarily impacts the sensory pathways that are responsible for touch and proprioception. This syndrome is characterized by damage to the dorsal columns of the spinal cord, which carry information related to fine touch, vibration, and proprioceptive awareness from the body to the brain. Individuals with posterior cord syndrome typically experience loss of these modalities, leading to difficulties in perceiving where their limbs are in space and alterations in their ability to feel textures or vibrations.

Other sensory modalities, such as pain and temperature, are primarily transmitted via the spinothalamic tract, which remains intact in cases of posterior cord syndrome. Therefore, while individuals may retain the ability to detect pain and temperature changes, they struggle with touch and proprioception, making option B the correct choice. Understanding this specific pathway allows paramedics and healthcare providers to better assess and manage the neurologic deficits presented by patients with this condition.