Question

fill in the blank question the first pair of spinal nerves is purely
, while the rest are
, containing both motor and sensory fibers. need help? review these concept resources.

Explanation:

The first pair of spinal nerves (olfactory and optic, but in spinal context, the first spinal nerves' sensory - only nature: the first pair (actually, the first cervical? Wait, correction: The first pair of spinal nerves (actually, the olfactory and optic are cranial, but for spinal, the first spinal nerves' sensory - only: the first pair (cranial - wise, but spinal: the first spinal nerves (C1? No, the cranial nerves: olfactory (I) and optic (II) are sensory - only. But for spinal nerves, the first pair (actually, the spinal nerves: the first spinal nerve (C1) - no, the correct info: The first pair of spinal nerves? Wait, no, cranial nerves: I (olfactory) and II (optic) are sensory - only, and the rest (except some) are mixed. But if the question is about spinal nerves: Wait, spinal nerves: all spinal nerves except maybe? No, actually, the first pair of cranial nerves (I and II) are sensory - only, and the rest (cranial) are mixed (except some). But if the question is about spinal nerves: Wait, the user's question: "The first pair of spinal nerves is purely [sensory], while the rest are [mixed], containing both motor and sensory fibers." Wait, no, spinal nerves: all spinal nerves are mixed (containing both motor and sensory), except? No, correction: Cranial nerves: I (olfactory) and II (optic) are sensory - only (afferent), and the rest (most) are mixed (both afferent and efferent). But if the question is misphrased, and it's about cranial nerves, but the user wrote "spinal". Wait, maybe a typo. But in standard anatomy: The first pair of cranial nerves (I: olfactory, II: optic) are purely sensory, while the rest (cranial nerves) are mixed (containing both motor and sensory fibers) or some are motor - only. But if we go with the question as is (spinal nerves), but actually, all spinal nerves are mixed (they have dorsal (sensory) and ventral (motor) roots, so they are mixed. But maybe the question has a mistake, and it's cranial. Assuming the intended is cranial: first pair (I, II) are sensory, rest are mixed. So the blanks are "sensory" and "mixed".

Answer:

First blank: sensory
Second blank: mixed