{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 5 08 - NERVOUS SYSTEM 4 Chapters 13 14 Dr Phelps...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 NERVOUS SYSTEM 4 Dr. Phelps Chapters 13 & 14 Lecture 5 I. General brainstem functions & Reticular Activating System II. Cerebellum: Connections and function III. Spinal cord organization IV. Ascending and descending tracts to illustrate neural processing in the CNS V. Organization of the PNS somatic division: receptors and segmental spinal nerves I. Introduction to the brainstem General functions of brainstem: 1. Connects diencephalon to spinal cord 2. Contains neuronal centers critical for survival, e.g. respiratory center 3. Contains 10 out of 12 cranial nerves Reticular Activating System (RAS) - Fig. 13.29 1. Neurons composing the reticular formation dispersed in core of brainstem 2. Neurons of the reticular activating system project diffusely throughout the cerebral cortex, thalamus, and spinal cord. 3. Incoming sensory axons synapse on RAS neurons 4. Function: arousal and consciousness II. Cerebellum: Connections and function Fig. 13.15 A. Originates from metencephalon but forms a cortical structure with gray matter on the outside, white matter on the inside, & deep cerebellar nuclei See 4 th ventricle between the pons and the cerebellum Mid-sagittal view of cerebellum & brainstem B. Function of cerebellum = to coordinate body movements
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 C. Cellular structure of a folium - 3 layered cortex: I: Molecular layer II: Purkinje layer III. Granular layer Neurons of cerebellar cortex: 1. Purkinje cells (only neurons that project to the deep cerebellar nuclei) 2. Granule cells form parallel fibers 3. Deep cerebellar nuclei only cells that project out of the cerebellum D.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

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