Quiznetik

Physiological Psychology | Set 3

1. Which among the following is not a hormone secreted by thyroid gland?

Correct : B. Thyroidim

2. Which among the following is right?

Correct : C. Pineal gland ; melatonin

3. Which is not a part of the basal ganglia?

Correct : C. Basal nucleus

4. Lesions in the primary motor cortex produce ----------and lesions in the other areas involved in movement produce a variety------

Correct : B. Paralysis; Apraxia

5. Which motor pathways has been involved in non-voluntary movement?

Correct : A. The extrapyramidal system

6. Muscle weakness, lack of coordination, slurring of speech and ataxia are symptoms of damage to which part of the brain?

Correct : C. Cerebellum

7. A motor unit is a combination of -------------and ----------

Correct : A. Motor neuron and the subset of fibers

8. The neurochemical which has a major role in motor control is;

Correct : D. Acetylcholine

9. Withdrawal reflex is an example of ------------reflex;

Correct : B. Polysynaptic reflexes

10. Interneuron has a significant role in polysynaptic reflexes because;

Correct : C. It connect with several motor neurons

11. -----------muscles react slowly to stimulation, and produces mostly longerlasting changes

Correct : C. Smooth

12. Phenylthiocarbamide usually used to test;

Correct : B. Taste blindness

13. -------------provide the receptor surface for taste.

Correct : A. Microvilli

14. Among the following regions where does maximum number of taste buds locate?

Correct : C. Circumvallate papillae

15. When we apply some taste substance on tounge it leads ------------in the taste hairs;

Correct : B. Depolarization

16. Type of taste that will be perceived is primarily determined by;

Correct : A. Type of receptor protein in each taste villus

17. Certain smells can induce emotions and related memory due to the involvement of--------------

Correct : C. Limbic system

18. Free nerve endings respond to which sensation?

Correct : C. Pain

19. Aching pain, throbbing pain, nauseous pain, and chronic pain are examples of:

Correct : A. Slow pain

20. If we stimulate the periaqueductal gray area or in the raphe magnus nucleusin the brain, what changes will happen in pain sensitivity?

Correct : D. Pain decreases

21. The nerve endings which helps in the perception of deep continuous pressure and to stretch;

Correct : B. Organs of Ruffini

22. Which of the following is associated with the hypothalamus?

Correct : D. Homeostatic regulation

23. Proprioceptors; -------------------------, kinesthetic sense; ---------

Correct : C. Monitor our own movements; monitor position of the body parts

24. Sensory hair cells are an example of;

Correct : B. Proprioceptors

25. The optic nerve is composed of one axon fiber extending from each ___ cell in the retina.

Correct : A. Ganglion

26. Different groups of cone cells are specialized for absorption in all the following regions of the visible spectrum except

Correct : D. Yellow

27. Deep pressure on the skin is sensed by

Correct : C. Pacinian corpuscles

28. Of the four basic taste modalities, the one most limited to the tip of the tongue is

Correct : D. Sweet

29. Olfaction (smell) differs from other sensory modalities because it

Correct : B. Does not transmit to the cerebral cortex via the thalamus

30. Hair cells are involved in all of the following receptors except

Correct : C. Taste buds

31. The bone attached to the medial side of the tympanic membrane, is the

Correct : D. Malleus

32. Sound waves travel from the air to the tympanic membrane by way of the ;

Correct : C. external auditory meatus

33. The sensory hair cells of the cochlea organ of Corti are anchored on the

Correct : A. Basilar membrane

34. The optic nerve and blood vessels exits the eye, and arteries enter it, at the

Correct : D. optic disc

35. The ability of the eyes to keep an image focused on the retina despite changes in the distance to the object viewed is called

Correct : D. Accommodation

36. Which of the following does not belong with the rest?

Correct : A. Rod cells

37. ____________ are the basic units of communication in the nervous system.

Correct : B. Neurons

38. ______________ help neurons by providing nutrition, removing waste products, and enhancing the speed of communication between neurons.

Correct : C. Glial cells

39. The three basic components of the neurons are ____________, ___________ and ____________.

Correct : D. Cell body, Axon and Dendrites

40. The _________________ is a white, fatty covering made up of glial cells that increases the rate at which neural messages are sent.

Correct : D. Myelin sheath

41. Within the neuron, information is communicated in the form of brief electrical messages called _______________.

Correct : C. Action potential

42. The _______________ is the minimum level of stimulation required to activate a particular neuron.

Correct : A. Stimulus threshold

43. The synaptic vesicles contain chemicals called _______________.

Correct : B. Neurotransmitter

44. ________________ is the process by which neurotransmitter molecules detach from a postsynaptic neuron and are reabsorbed by the presynaptic neuron so they can be recycled and used again.

Correct : D. Reuptake

45. Our ability to perceive, feel, think, move, act and react depends on the delicate balance of ___________________ in the nervous system.

Correct : A. Neurotransmitter

46. _______________ stimulates muscle contractions and is involved in memory functions.

Correct : A. Acetylcholine

47. ________________ is involved in a number of functions, including movement, attention and learning and abnormal levels are involved in some mental disorders.

Correct : C. Dopamine

48. _________________ is involved in sleep, moods and emotional states, including depression.

Correct : D. Serotonin

49. ________________ has been implicated in some mental disorders and is involved in activation of neurons throughout the brain and in the process of learning and memory retrieval.

Correct : B. Norepinephrine

50. _________________ usually communicates inhibitory messages to other neurons and helps balance and offset excitatory messages.

Correct : A. Gamma-aminobutyric acid (GABA)

51. ______________ are neurotransmitters that regulate pain perception and are involved in the positive emotions associated with aerobic exercise.

Correct : C. Endorphins

52. Prozac works by inhibiting the reuptake of __________________, increasing the availability of this neurotransmitter in the brain.

Correct : D. Serotonin

53. _______________ is a highly specialized cell that communicates information in electrical and chemical form.

Correct : A. Neuron

54. _______________ is the primary internal communication network of the body; divided into the central nervous system and the peripheral nervous system.

Correct : A. Nervous system

55. _______________ is a type of neuron that signals muscles to contract or relax.

Correct : C. Motor neurons

56. _______________ is the part of a neuron that contains the nucleus.

Correct : D. Cell body

57. ________________ is a brief electrical impulse by which information is transmitted along the axon of a neuron.

Correct : C. Action potential

58. _______________ is a chemical messenger manufactured by a neuron.

Correct : D. Neurotransmitter

59. ______________ is the long, fluid-filled tube that carries a neuron's messages to other body areas.

Correct : A. Axon

60. ________________ is the point of communication between two neurons.

Correct : B. Synapse

61. _________________ are the tiny pouches or sacs in the axon terminals that contain chemicals called neurotransmitters.

Correct : B. Synaptic vesicles

62. _________________ is a neurotransmitter that is involved in the regulation of bodily movements and thought processes.

Correct : C. Dopamine

63. ________________ is the neurotransmitter that inhibits brain activity.

Correct : A. Gamma-aminobutyric acid (GABA)

64. ______________neurons communicate information from one neuron to the next.

Correct : A. Interneurons

65. The ________________ is a tiny space between the axon terminal of one neuron and the dendrite of an adjoining neuron.

Correct : C. Synaptic gap

66. _____________ are made up of large bundles of neuron axons.

Correct : B. Nerves

67. ________________ refer to simple, automatic behaviors that are produced by the spinal cord and occur without involvement of the brain.

Correct : A. Spinal reflexes

68. ________________ is a chemical substance that inhibits the effect normally produced by a neurotransmitter at a receptor site.

Correct : B. Antagonist

69. Additional evidence indicates that ___________________ also serve to intensify positive sensations- for example, the "runner's high" many people experience after vigorous exercise.

Correct : A. Endorphins

70. Degeneration of ___________________ producing neurons has been linked to Parkinson's disease.

Correct : C. Dopamine

71. When an action potential reaches the axon terminal, synaptic vesicles move toward the _____________________.

Correct : B. Cell membrane

72. Within the axons of the neuron are _________________, which are held in storage-like vesicles until they are released when the neuron is stimulated.

Correct : A. Neurotransmitters

73. The ______________ is the most basic signal in the nervous system which consists of a rapidly moving wave of depolarization that travels along the membrane of the individual neuron.

Correct : C. Action potential

74. _________________ are the small gaps in the myelin sheath surrounding the axons of many neurons.

Correct : C. Nodes of Ranvier

75. _________________ carry information toward the cell body.

Correct : D. Dendrites

76. _________________ carry information away from the cell body.

Correct : C. Axons

77. In many neurons the axon is covered by a sheath of fatty material known as _____________.

Correct : A. Myelin

78. _______________ help form a barrier that prevents certain substances in the bloodstream from reaching the brain.

Correct : C. Glial cells

79. Speeds along myelinated axons can reach ____________ miles per hour.

Correct : B. 270

80. Stimulation, either directly or by chemical messages from other neurons, produces ___________________, a basic type of signal within neurons.

Correct : B. Graded potentials

81. Damage to the ___________________ surrounding axons can seriously affect synaptic transmission.

Correct : D. Myelin sheath

82. In diseases such as multiple sclerosis (MS), progressive deterioration of the _______________ leads to jerky, uncoordinated movements in the affected person.

Correct : A. Myelin sheath

83. The best-known imaging technique, and the first one developed for wide spread use, is an x-ray scanning procedure called ________________.

Correct : C. CT scan

84. The pseudoscience associated with the study of the skull and personality became known as ___________.

Correct : D. Phrenology

85. The __________ of an organism is the full sequence of genes found on the chromosomes with the associated DNA.

Correct : C. Genome

86. Researchers in the field of human behavior genetics unite __________ and psychology to explore the causal link between inheritance and behavior.

Correct : D. Genetics

87. Researchers in the field of __________________ provide evolutionary explanations for the social behavior and social systems of humans and other animal species.

Correct : A. Sociobiology

88. The reticular formation has long tracts of fibers that run to the ____________, which channels incoming sensory information to the appropriate area of the cerebral cortex, where that information is processed.

Correct : D. Thalamus

89. The __________, which is the largest of the limbic system structures, plays an important role in the acquisition of memories.

Correct : A. Hippocampus

90. The area where the axon connects to the soma is ______________.

Correct : A. Axon hillock

91. When the ___________________is too large to be jumped by the neural impulse, the signal/information must be passed using chemicals as neurotransmitters instead of electrical currents.

Correct : D. Synaptic cleft

92. ______________ is the DNA segments that serve as the key functional units in hereditary transmission.

Correct : D. Gene

93. _______________ is the expression of your genetic makeup (eye color, height, hair color, etc).

Correct : C. Phenotype

94. _____________ are the thread-like strands of DNA molecules that form the DNA segments.

Correct : A. Chromosomes

95. In the brain and spinal cord, areas that are mostly axons are called ___________ which is possible to differentiate pathways or tracts of these axons.

Correct : A. White matter

96. Areas that include large number of cell bodies are called __________________.

Correct : B. Gray matter

97. When the action potential reaches the axon ending, it causes tiny bubbles of chemicals called ____________________ to release their contents into the synaptic gap.

Correct : C. Synaptic vesicles

98. The surface of the axon contains hundreds of thousands of miniscule mechanisms called _______________.

Correct : B. Ion channels

99. The actions of the body’s voluntary muscles are controlled by the ______________, located just in front of the central sulcus in the frontal lobes.

Correct : B. Motor cortex

100. The hypothalamus maintains the body’s internal equilibrium, or ____________.

Correct : C. Homeostasis