Which is released from the sarcoplasmic reticulum during muscle contraction?
A. (A) potassium
B. (B) sodium
C. (C) chloride
D. (D) calcium
查看答案
Which two brain areas are important in adaptation of posture?
A. (A) medulla and nucleus ambiguus
B. (B) hippocampus and basal ganglia
C. (C) prefrontal cortex and thalamus
D. (D) basal ganglia and cerebellum
Which is the function of postural orientation?
A. (A) anticipates disturbances to balance
B. (B) interprets sensations
C. (C) optimizes execution of tasks
D. (D) all of the above
Which is not a required action for upright stance?
A. (A) maintaining support against gravity
B. (B) maintaining balance
C. (C) maintaining orientation
D. (D) none of the above
Why does high salt concentration induce aversive behaviors in mice?
A. (A) because epithelial sodium channels are activated
B. (B) because bitter and sour receptors are activated
C. (C) because bitter and umami receptors are activated
D. (D) because umami and sour receptors are activated
微信支付 
支付宝支付