Tomato juice has a pH of 4; therefore, it is considered a(n) ____________________
Fill in the blank(s) with correct word
acid
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During muscle contraction, myosin heads attach to actin and thereby form connections called ________.
Fill in the blank(s) with the appropriate word(s).
The nuclear envelope is a double-layered membrane, like the plasma membrane.
Answer the following statement true (T) or false (F)
What are clusters of sensory neuron somas found outside of the CNS called?
A. Posterior horns B. Anterior horns C. Anterior root swellings D. Nuclei E. Ganglia
Which of the following statements is TRUE with regard to the motor control hierarchy?
A. The local level of the motor control hierarchy includes the premotor and primary motor regions of the cerebral cortex, as well as the alpha motor neurons and muscle fibers themselves. B. The highest level of the hierarchy of motor control includes the frontal lobe cortex, the primary motor cortex, muscle sensory receptors, and the basal nuclei. C. Reflexes that include local-level receptors and muscle fibers cannot occur without input from the higher centers of the motor control hierarchy. D. The highest level of the hierarchy of motor control is composed entirely of areas of cerebral cortex, and its main purpose is to create a conscious plan to move that depends on the initial position of the parts of the body in space. E. Neurons of the middle level of the hierarchy integrate afferent information with signals from higher center command neurons to create a motor program-a pattern of neural activity required to properly perform a desired movement.