The basic way the nervous system works is() A: receptor B: sensory nerve C: effector D: nerve center E: reflex
The basic way the nervous system works is() A: receptor B: sensory nerve C: effector D: nerve center E: reflex
未被特异性抗原激活的成熟T细胞称为 A: memory T cell B: naïve T cell C: cytotoxic T lymphocyte D: effector T cell
未被特异性抗原激活的成熟T细胞称为 A: memory T cell B: naïve T cell C: cytotoxic T lymphocyte D: effector T cell
How a cell reacts to a signal depends on the set of intracellular signaling molecules each cell-surface receptor produces and how these molecules alter the activity of effector proteins, which have a direct effect on the behavior of the target cell.
How a cell reacts to a signal depends on the set of intracellular signaling molecules each cell-surface receptor produces and how these molecules alter the activity of effector proteins, which have a direct effect on the behavior of the target cell.
Which of the following statements about tendon reflexes is wrong? A: single synaptic reflex B: The receptor is tendinous organ. C: Stretch reflex occurs when the tendon is pulled rapidly. D: The effector is the muscle fiber of the same muscle.
Which of the following statements about tendon reflexes is wrong? A: single synaptic reflex B: The receptor is tendinous organ. C: Stretch reflex occurs when the tendon is pulled rapidly. D: The effector is the muscle fiber of the same muscle.
In the nerve reflex, the latency from the stimulation to the response is mainly dependent on A: the action potential conduction velocity at the afferent and efferent nerve fiber B: the strength and property of stimulation. C: the number of synapses in the central nervous system. D: the sensitivity of the sensory receptors. E: the sensitivity of the effector.
In the nerve reflex, the latency from the stimulation to the response is mainly dependent on A: the action potential conduction velocity at the afferent and efferent nerve fiber B: the strength and property of stimulation. C: the number of synapses in the central nervous system. D: the sensitivity of the sensory receptors. E: the sensitivity of the effector.