Lecture+17+Central+Nervous+System

All inputs ascending to the cerebral cortex pass

This preview shows page 35 - 44 out of 44 pages.

All inputs ascending to the cerebral cortex pass through the thalamus. Mediates sensation, motor activities, cortical arousal, learning, and memory. 35 Sunday, June 12, 2011
Image of page 35

Subscribe to view the full document.

Hypothalamic Function Regulates blood pressure, rate and force of heartbeat, digestive tract motility, rate and depth of breathing, and many other visceral activities. Mediates perception of pleasure, fear, and rage. Maintains normal body temperature. Regulates feelings of hunger and satiety. Regulates sleep and the sleep cycle. 36 Sunday, June 12, 2011
Image of page 36
37 Sunday, June 12, 2011
Image of page 37

Subscribe to view the full document.

38 Sunday, June 12, 2011
Image of page 38
39 Sunday, June 12, 2011
Image of page 39

Subscribe to view the full document.

Brain Waves Normal brain function involves continuous electrical-chemical activity. An electroencephalogram (EEG) records this activity. Patterns of neuronal electrical activity recorded are called brain waves. Each person’s brain waves are uniquely patterned. Continuous train of peaks and troughs. Wave frequency is expressed in Hertz (Hz). 40 Sunday, June 12, 2011
Image of page 40
Types of Brain Waves Alpha waves – regular and rhythmic, low-amplitude, slow, synchronous waves indicating an “idling” brain. Beta waves – rhythmic, more irregular waves occurring during the awake and mentally alert state. Theta waves – more irregular than alpha waves; common in children but abnormal in adults. Delta waves – high-amplitude waves seen in deep sleep and when reticular activating system is damped. 41 Sunday, June 12, 2011
Image of page 41

Subscribe to view the full document.

42 Sunday, June 12, 2011
Image of page 42
Degenerative Brain Disorders Alzheimer’s disease – a progressive degenerative disease of the brain that results in dementia. Parkinson’s disease – degeneration of the dopamine-releasing neurons of the substantia nigra. Huntington’s disease – a fatal hereditary disorder caused by accumulation of the protein huntingtin that leads to degeneration of the basal nuclei. 43 Sunday, June 12, 2011
Image of page 43

Subscribe to view the full document.

The End 44 Sunday, June 12, 2011
Image of page 44

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern