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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. Are postsynaptic potentials that are found in the dendrites and vary in their intensity






2. Is used as an anaesthetic for children and animals but causes psychosis in adults






3. Colored part of the eye






4. 'Roof'






5. A drug that facilitates the effects of a particular neurotransmitter on the postsynaptic cell






6. Opening in the iris; dilates and contracts allowing different levels of light in






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






8. Produce drowsiness and sleepiness






9. Attaches to a binding site on receptor and interferes with the action of the receptor without affecting the binding site for the principal ligand (noncompetitive binding)






10. Viscous substance between cornea and lens; transparent substance between lens and retina






11. A BEHAVIOR; insistent urge of sleepiness forces us to seek sleep/a bad






12. AKA the striate cortex - located at the back of the brain - and contains the visual cortex






13. 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






14. Maintains balance/posture and coordinates body movements






15. Occurs when their is damage to the septal area and results in unchecked aggressive and vicious behavior






16. 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






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






18. Forebrain -band of nerve fibers connecting the two cerebral hemispheres






19. A single - unfertilized cell created during conception; the combined egg + sperm






20. Midbrain - medulla and the pons






21. Irregular electrical activity of 13-30 Hz - state of arousal - attentive






22. An axon of a neuron in one region of the brain whose terminals form synapses with neurons in another region






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






24. Fluid filled cavities in the middle of the brain - linking to the spinal canal that runs down the middle of the spinal cord; this fluid is cerebrospinal fluid






25. ...






26. The scientific study of animal behavior; documentation of species-specific instinctual behaviors






27. Stimulates bone growth and produces the hormones: somatotropin - prolactin - thyroid-stimulating - adrenocorticotropic (ACTH) - follicle-stimulating - luteinnizing






28. Neurotransmitter in CNS - hormone in peripheral vascular system; deficiencies > depression - ADD; noradrenergic nuclei = locus coeruleus






29. Actually are two kinds: monochorionic and dichorionic (blastocyst splis into two before day 4)






30. Made from within - natural






31. 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






32. Trochlear Nerve - moves eye






33. Part of a glial cell that wraps around the axon of a neuron - providing insulation that facilitates speed of propagation of action potential






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






35. 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)






36. A large network of neural tissue located in the central region of the brain stem - from the medulla to the diencephalon






37. Governs eating/drinking (lateral and ventromedial hypothalami) and sexual activity (anterior portion






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






39. Motor neurons found in the Somatic (voluntary) and Autonomic (involuntary) Nervous Systems






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






41. Functions in metabolism (carbohydrate - protein - lipid) and in the endocrine system'S salt/water balance - produces the hormones cortisol and aldosterone






42. Is found at the base of the brain - underneath the thalamus (**remember hypo-below)






43. Cornea - aqueous humor - pupil - lens - vitreous humor - retina






44. Physiologically different from the other four stages of sleep (i.e. the similarity between the summed electrical activity of neurons measured on the scalp (EEG) during REM sleep and during wakefulness






45. Bunch of dopaminergic neurons starting in the ventral tegmental area and ending in the nucleus accumbens - amygdala and hippocampus






46. A sensory organ that detects the presence of certain chemicals - especially when a liquid is actively sniffed; mediates the effects of some pheromones






47. Occurs intermittently during early stages of slow-wave sleep and REM sleep 3.5-7.5 Hz






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






49. The slowing and eventual cessation of estrous cycles in groups of female animals that are housed together; caused by a pheromone in the animals urine and first observed in mice






50. Occurs when an external stimulation - regardless of intensity - will not trigger a new action potential






Can you answer 50 questions in 15 minutes?



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