8. Sequence the following events correctly. tter diffuses across 2. Calcium indu

Question

8. Sequence the following events correctly. tter diffuses across 2. Calcium induces exocytosis of neurotransmitter postsynaptic membrane altered Permeability of 4. Ion channels open. eurotransmitter binds to receptor. 2, 3, 5, 4 b, 1.4, 3, 2, 5 c, 2, I, 5, 4, 3 9. The nucleus of a neuron is housed a. Axon axon hillock collaterals 20. The normal sequence of structures activated for signal transmission and response in the body a. Effector afferent neuron interneuron efferent neuron receptor b. Effector efferent neuron interneuron afferent neuron receptor c. Receptor fferent neuron interneuron efferent neuron effector d. Receptor efferent neuron interneuron afferent neuron effector 21. The most abundant type of neuron in the body is (are) the a. Motor neuron b. Efferent neuron c. Afferent neuron d. Interneuron 22. The sense of body position is Somatosensory b. Integrated in the frontal lobe c. Proprioception d. Integrated in the occipital lobe 23. The primary motor cortex is located a. Posterior to the central sulcus b. Anterior to the central sulcus c. In the temporal lobe d. In the parietal lobe 24. Select the incorrect association: a. Chemoreceptor/oxygen concentration b. ptorskeletal muscle stretch Mechanorece c. Nociceptor/solute concentration d. Photoreceptor/light 25. The retina a. Is the middle layer of the eye b. Contains the photoreceptors Becomes specialized anteriorly to form the d. Secretes the aqueous humor 26. Sour taste represents stimuli caused b a. Acids b. Salts Part the somatic nervous system b. The involuntary branch of the peripheral nervous system's efferent division 27. The c. Part of the central nervous system nerv d. Part of the afferent division of the 28. The overall functioning of the ANS to a. Conservation of energy resources when are stress reserves when stress b. Mobilization of energy c. Sul are high activities when of non-vital levels are d. Homeostasis All of the above heart rate and lation 29. Sympathetic the motility in the digestive tract a. Does not affect: decreases decreases b. Decreases: 30. The striated appearance of skeletal muscle is due a. Orderly nt of the T tubules o b. Orderly arrangement of the lateral sacs the sarcoplasmic reticulum c. arrangement of the thick and thi filaments into A and I bands d. Orderly arrangement of the motor units ts fro 31. Order the following muscle cel larger to smaller Troponin 2. Myofibril Sarcomere 4, Thin filament 5. Muscle fiber a. 3, 4, 1,5,2 b. 1, 2, 3, 5,4 c. 5, 4,3, 1,2 d. 5, 2, 3, 4, 1 32. Sequence the following events involved in m cell contraction I. Sodium channels open and sodium flows 2. Impulse reaches the axon's teminal. 3. ACh binds to receptors on the muscle ce 4. Synaptic vesicles fuse with neuron's me and release ACh via exocytosis. 5. If enough sodium moves in to the mus impulse (action potential) develops. a. 1, 2, 3, 4, 5 b. 2, 1,3, 4, 5 c. 2, 4, 3, 1,5 d. 3, 4, 5, 1, 2

Explanation / Answer

18. D

19. c present in cell body as it contains the genetic material.

20. c

21. d because they are abundant in the central nervous system.

22.

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