2. Which type of nerve fiber is responsible for conducting warm signals from the skin?
A. (A) Aα nerve fiber
B. (B) Aβ nerve fiber
C. (C) Aδ nerve fiber
D. (D) C nerve fiber
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3. What would happen in the cortical representation when the use of a finger is increased?
A. (A) the cortical representation decreases
B. (B) the cortical representation enlarges
C. (C) no influence in the cortical representation
D. (D) the cortical representation disappears
2. How does the phantom limb develop after amputation?
A. (A) rearrangement of the cortical somatosensory map
B. (B) brain area responsible for the amputated limb is over active
C. (C) injured limb regenerates
D. (D) brain area responsible for the amputated limb dies
1. Which part of body is most represented in the human somatosensory cortex?
A. (A) teeth
B. (B) foot
C. (C) fingers
D. (D) jaw
3. Which is correct about the fingerprint structure?
A. (A) the fingerprints are formed by a regular array of parallel ridges in the epidermis
B. (B) the fingerprints have limiting ridge and papillary ridge
C. (C) the fingerprint structure enhances touch sensitivity in the hand
D. (D) all of above
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