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Gre Psychology: Experimental/natural Science Biology

Subjects : gre, psychology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Two different presynaptic neurons/inputs to a post-synaptic cell






2. Contains receptors to detect when the body needs food or fluids; the hunger center; lesions lead to aphagia






3. Reduces anxiety - released with NE in amygdala - hippocampus - basal ganglia - periaqueductal gray region - locus coeruleus and PFS; NPY is diminished in persons with PTSD/CPTSD and those exposed to chronic stress






4. Accessory Nerve - moves the head






5. Skin senses that register the sensations of pressure - warmth and cold






6. ...






7. A patient who had intact intelligence but an inability to learn/remember anything new (severe anterograde amnesia)






8. Lens changes initiated by the ciliary muscles to change the shape of the lens in order to focus image on the retina






9. Convoluted of hills (gyri) and valleys (sulci) divided into two hemispheres (left and right) which are further divided into four lobes (occipital - parietal - temporal and frontal)






10. Hypoglossal Nerve - moves the tongue






11. Areas in the brain receiving incoming sensory information or sending out motor-impulse commands






12. These cells perform a variety of functions but do not transmit information; one type forms the myelin sheath






13. Found in the ventricles and spinal canal






14. Is found in PTSD/CPTSD patients and persons exposed to chronic stress






15. Begins where spinal cord ends - 3 structures: the medulla - the pons - the cerebellum






16. In the CNS - is an amino acid that stabilizes neural activity






17. Includes the thalamus and hypothalamus; region of forebrain surrounding the 3rd ventricle






18. When a neuron reaches its excitation threshold - the neuron will produce an action potential of FIXED amplitude regardless of the magnitude of the stimulation






19. 'Roof'






20. Midbrain - medulla and the pons






21. Affect multiple receptors; highly preferential to which type of receptor they affect






22. Adenine - Guanine - Thymine - Cytosine






23. SCN = controls circadian rhythms - located directly above the optic chasm in the anterior portion of the hypothalamus - receives input from the eyes which is why light exposure affects our sleep-wake cycles






24. Moving forward






25. Glandular system control center - produces the hormones oxytocin and antidiuretic; functions in both the nervous system and endocrine sytem - In the forebrain - regulates motivated behaviors (eating - drinking - aggression - sexual behavior






26. Refers to both the somatosensory cortex and motor cortex (they are a little different but very interrelated)






27. Precursor to the catecholamine neurotransmitters (DA + NE)






28. Hormone secreted during the night by the pineal body; role in circadian and seasonal rhythms






29. Is everything anterior to the central sulcus






30. Are found in the diencephalon






31. Include tolerance (possible withdrawal) and sensitivity






32. Optic Nerve - sight






33. Associated with defensive and aggressive behavior; lesions produce docility and hypersexual states (Kluver & Bucy)






34. Links the nervous system and endocrine system; comprised of involuntary efferent neurons and divided into the Sympathetic and Parasympathetic branches: Sympathetic Nervous System is involved in the 'fight or flight' response and the Parasympathetic N






35. Has a calcium-related role and produces the hormone parathyroid






36. Trochlear Nerve - moves eye






37. A drug that opposes/inhibits the effects of a particular neurotransmitter on the postsynaptic cell






38. Produce drowsiness and sleepiness






39. Cells that integrate information across the retina; rather than sending signals toward the brain - amacrine cells link bipolar cells to other bipolar cells and ganglion cells to other ganglion cells






40. Includes comparative (evolution/genetics/animal behavior/ethology) and behavioral regulation






41. Found in the hypothalamus - function to maintain the water balance in the body






42. Transparent substance between lens and retina






43. Is a peptide neurotransmitter and a natural painkiller and antianxiety






44. Similarity of alleles for a trait in an organism (i.e. heterozygous or homozygous)






45. Has neurons for reflexes






46. Has a major role in metabolism - stimulation/maintenance - produces the hormones thyroxin and calcitonin






47. Sits just above the hindbrain - contains cranial nerves - parts of the reticular formation -important relay stations for sensory information and the substantia nigra






48. Short bursts of waves 12-14 Hz that occur 2-5 times a minute during stages 1-4 of sleep; most characteristic of sleep Stage II; some believe sleep spindles are involved in keeping one asleep (decline in older people)






49. Choroid Plexus > Ventricle 1 & 2 > Foramen of Monro > Ventricle 3 > Aqueduct of Sylvius > Ventricle 4 > Foramen of Magendie lateral aperture) > Foramina of Luschka (lateral aperture) - subarachnoid space (outside of brain) and spinal cord > re-absorp






50. A 90-minute activity cycle occurs throughout the day as well as throughout sleep (in humans) waxing and waning alertness controlled by a biological clock in the caudal brainstem that also controls cycles of REM and slow-wave sleep