The normal sequence of structures activated for signal transmission and response in the body is
a. effector--afferent neuron--interneuron--efferent neuron-receptor.
b. effector--efferent neuron--interneuron--afferent neuron-receptor.
c. receptor--afferent neuron--interneuron--efferent neuron-effector.
d. receptor--efferent neuron--interneuron--afferent neuron-effector.
C
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Where are the chemoreceptors located that are sensitive to low oxygen or high acid levels in the blood?
a. medulla in the brain stem b. right atrium c. carotid and aortic arteries d. apex of the heart e. vena cava
Which brain area and function are NOT correctly paired?
a. cerebellum: skilled voluntary activity b. brain stem: sense of fear c. thalamic region: crude awareness of sensation d. cerebral cortex: personality traits e. amygdala: emotional memories
Why do you think most of the male coquís in the population emerge from their daytime retreats on dry nights? Only female coquís that are seeking a mate are active on these nights; the remaining females remain in their shelters
Why don't males do that as well?
Which of the following statements concerning sutures is false?
A. They may become completely immovable in adults. B. The opposing bones in the joint interdigitate for stability. C. The tissue between the bones is hyaline cartilage. D. The periosteum of adjacent bones is continuous over the joint. E. Membranes, called fontanels, are present in some sutures at birth.