MMED revision quize 20 - Fundamental Neuroscience PDF

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Fundamental Neuroscience...

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What ion is necessary to cause the release of neurotransmitters from the synaptic vesicles? Select one: a. sodium b. potassium c. calcium d. magnesium C Identify the four major regions of the brain. Select one: a. brain stem, cerebrum, cerebellum and spinal cord b. brain stem, diencephalon, cerebrum and cerebellum c. brain stem, cerebellum meninges and spinal cord d. diencephalon, cerebrum, cerebellum and spinal cord B During many motor tasks, there are numerous possible solutions to perform a given task. This is referred to as: Select one: a. afferent discrimination b. freedom of motor expression c. degrees of freedom problem d. motor redundancy D All of the following nerve endings are found in the skin EXCEPT Select one: a. tactile discs b. proprioceptors c. pacinian corpuscles d. Ruffini's corpuscles B Exteroceptors provide information about Select one: a. the body's external environment b. the body's chemical composition, blood pH and blood pressure c. the body's internal environment d. body position, movement and the extent of stretch or force of muscular contraction. A Which of these combinations of general senses depends on mechanoreceptors? Select one: a. pressure and proprioception b. proprioception and temperature c. pressure and temperature d. touch and temperature A Sensory receptors that are stimulated by the position of the body or its parts are called Select one: a. interoreceptors b. exteroceptors

c. proprioceptors d. nociceptors C The two main kinds of stretch receptors or proprioceptors that transmit information to the spinal cord and brain about muscle tension and length are: Select one: a. muscle spindles and Golgi tendon organs b. pacinian corpuscles and Golgi tendon organs c. Meissner's corpuscles and Golgi tendon organs d. Meissner's corpuscles and pacinian corpuscles A Which of the following numbering refers to the most sensitive nerve ending that initiates a stretch reflex? Select one: a. Ia b. Ic c. IIa d. Ib A Which sensory system has the most dominant role in the control of movement? Select one: a. Nociceptors b. Visual system c. Proprioceptors d. Vestibular system B Human receptors are classified into the following types: Select one: a. central, peripheral and sympathetic receptors b. Pacinian, Meissner, and Ruffini receptors c. sensory and motor receptors d. photoreceptors, mechanoreceptors, chemoreceptors, and thermoreceptors D...