Biol 373 Unit 3a Quiz
You have stepped on a tack with your bare left foot. What type of receptors would detect the
information related to pain you experience? - correct answer ✔✔Free nerve endings
You are snow-blowing your land lady's driveway in exchange for a rent reduction. The ________ are the
cutaneous sensory receptors that are most strongly stimulated by the vibration. - correct answer
✔✔Pacinian corpuscles
The cutaneous sensory receptors that would be used for reading *Braille would have _____ receptive
fields, and ascend to the brain via the ________. - correct answer ✔✔small, dorsal columns
Information detected by fine touch receptors in the right hand travel via the ___________ to the
______________. - correct answer ✔✔- dorsal columns
- somatosensory cortex
You are walking in your apartment and you accidentally step on a pin with your right foot. Choose the
option that best describes the pathway taken by the sensory information that will be ultimately
interpreted as pain.
Dorsal root ->
1. Dorsal columns
2. Dorsal horn gray matter
3. Synapse in medulla
4. Left somatosensory cortex
5. Right somatosensory cortex
6. Left spinothalamic tract
7. Right spinothalamic tract
8. Synapse in thalamus - correct answer ✔✔2, 6, 8, 4
You have stepped on a tack with your bare left foot. What type of receptors would detect the
information related to pain you experience? - correct answer ✔✔Free nerve endings
You are snow-blowing your land lady's driveway in exchange for a rent reduction. The ________ are the
cutaneous sensory receptors that are most strongly stimulated by the vibration. - correct answer
✔✔Pacinian corpuscles
The cutaneous sensory receptors that would be used for reading *Braille would have _____ receptive
fields, and ascend to the brain via the ________. - correct answer ✔✔small, dorsal columns
Information detected by fine touch receptors in the right hand travel via the ___________ to the
______________. - correct answer ✔✔- dorsal columns
- somatosensory cortex
You are walking in your apartment and you accidentally step on a pin with your right foot. Choose the
option that best describes the pathway taken by the sensory information that will be ultimately
interpreted as pain.
Dorsal root ->
1. Dorsal columns
2. Dorsal horn gray matter
3. Synapse in medulla
4. Left somatosensory cortex
5. Right somatosensory cortex
6. Left spinothalamic tract
7. Right spinothalamic tract
8. Synapse in thalamus - correct answer ✔✔2, 6, 8, 4
