Ava was running barefoot across the lawn when she stepped on a jagged small bran
ID: 3514399 • Letter: A
Question
Ava was running barefoot across the lawn when she stepped on a jagged small branch that penetrated the dermal layer of skin on the bottom of her right foot. She experienced immediate pain via a neurological reflex that began with (__1__) within the skin layers. This triggered a signal via the (__2__) up the length of her right limb and into the (__3__) which then connected with the spinal cord. Communication throughout the nervous system went in several directions to different locations instantaneously. An (__4__) sent signals away from the spinal cord to the lower limb muscles to allow Ava to hop on her left foot and leg to get help from her parents. Signals toward the brain were carried up the (__5__) of the spinal cord, through the brainstem to a region of the midbrain known as the (__6__), which is know to connect signals directly to the posterior part of the brain known as the (__7__). This allowed Ava to maintain balance and coordination while she hopped along on one leg. Other signals went superior into the diencephalon to a switching station known as the (__8__) and to sensory and motor regions of the (__9__). Yet, other signals from the switching station went to the (__10__), where the information of this incident is stored as memory and as a learning experience, so maybe Ava will think twice when she decides to run through the yard without proper footwear.
Word Bank:
-dorsal root ganglion
-nociceptors
-afferent sensory pathway
-efferent motor neuron
-limbic system
-cerebellum
-lateral spinothalmic tract
-pons
-cerebrum
-thalamus
Explanation / Answer
1 nociceptors
2 afferent sensory pathway
3 dorsal root ganglia
4 efferent motot pathway
5 lateral spinothalamic tract
6 thalamus
7 cerebellum
8 pons
9 cerebrum
10 limbic system
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