8B Brain flashcards.doc

The hypothalamus 24what is the main visceral control

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The hypothalamus 24.What is the main visceral control center of the brain? hypothalamus.
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Brain Flashcards 25.What does the hypothalamus control? Temperature, autonomic nervous reflexes, glucose and hormone levels, and the visceral reflexes (digestion, sweating, hunger, thirst, and sleep). It does NOT control blood pressure directly. 26. What are the three parts of the brain stem? Brain stem: PONS, MIDBRAIN, and MEDULLA OBLONGATA 27. What part of the brain controls automatic behaviors, such as fight-or-flight? MIDBRAIN 28. What part of the brain controls visual and 29. audio REFLEXES? The CORPORA QUADRAGEMINI They send the information to the MIDBRAIN for processing 30. What part of the brain is involved in addictions and in initiating body movement? Where is it located? The SUBSTANTIA NIGRA, which is in the MIDBRAIN 31. What neurotransmitter does it secrete? Substatia nigra secretes DOPAMINE 32. Damage to the substantia nigra causes PARKINSON’S DISEASE 33. What are two symptoms of Parkinson’s Disease? Trouble starting movements Pill-rolling tremor at rest 34. What part of the brain relays sensory information between the cerebellum and cerebrum? PONS 35. What part of the brain controls autonomic functions such as breathing, blood pressure, and heart rate? MEDULLA OBLONGATA (note: it does NOT control hunger and sleep) 36. What part of the brain plays a role in rousing and maintaining consciousness? Where is it located? RETICULAR FORMATION. It is located throughout the brainstem 37. What does melatonin do in humans? Allows circadian rhythms (sleep cycles; what time of day you feel like sleeping or waking) 38. What part of the brain makes melatonin? Pineal gland (pineal body) 39. What part of the brain is the BIOLOGICAL CLOCK and is responsible for jet lag? PINEAL GLAND (pineal body) 40. What is the second largest portion of the brain? What’s its function? The CEREBELLUM is the second largest portion of the brain, and is responsible for being able to balance. 41. The PRIMARY MOTOR CORTEX contains what type of neurons? PRIMARY MOTOR CORTEX : UPPER MOTOR NEURONS 42. What does the PRIMARY MOTOR ASSOCIATION AREA do? Leaned motor skills and Planning movement 43. What area of the brain contains the motor homunculus? PRECENTRAL GYRUS 44. What is the motor homunculus? A drawing of a man that represents how many neuron cell bodies we have that innervate each region of our body. 45. Are all body parts equally represented by cell density in the motor area in proportion to their size in the body? No. For instance, the lips and hands are drawn large to represent the many cells in the motor area that innervate those regions. 46. What area of the brain receives signals for touch, temperature, pressure, and pain? PRIMARY SOMATOSENSORY CORTEX
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Brain Flashcards 47. What area of the brain interprets signals for touch, temperature, pressure, and pain?
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  • Fall '08
  • Harrison,C

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