Nervous%20System1 - Human Anatomy and Physiology 1110...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Human Anatomy and  Physiology 1110 Nervous System
Image of page 1

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

View Full Document Right Arrow Icon
1.Explain the structural and functional divisions of  the nervous system. 2.Define neuron, describe its important structural   components, and relate each to a functional role. 3.Explain the importance of the myelin sheath and  describe how it is formed in the central and  peripheral nervous system. 4.Define resting membrane potential and describe  its electrochemical basis. 5.Explain how action potentials are generated and  propagated along neurons.  Nervous System: Learning Objectives
Image of page 2
1. Sensory input.  Monitor internal and  external stimuli 2. Integration . Brain and spinal cord  process sensory input and initiate  responses 3. Control  of muscles and glands 4. Homeostasis . Regulate and coordinate  physiology 5. Mental activity . Consciousness,  thinking, memory, emotion Nervous System: Functions
Image of page 3

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

View Full Document Right Arrow Icon
Nervous System: Organization - CNS and PNS
Image of page 4
Nervous System: Organization
Image of page 5

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

View Full Document Right Arrow Icon
Sensory receptors : ending of neurons or  separate, specialized cells that detect such  things as temperature, pain, touch, pressure,  light, sound, odors Nerve : a bundle of axons and their sheaths that  connects CNS to sensory receptors, muscles,  and glands Cranial nerves : originate from the brain; 12 pairs Spinal nerves : originate from spinal cord; 31 pairs Ganglion : collection of neuron cell bodies  outside CNS Plexus : extensive network of axons, and  sometimes neuron cell bodies, located outside  CNS Nervous System: Peripheral Nervous System (PNS)
Image of page 6
Nervous System: Peripheral Nervous System (PNS)
Image of page 7

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

View Full Document Right Arrow Icon
Nervous System: Peripheral Nervous System (PNS)
Image of page 8
Nervous System: Peripheral Nervous System (PNS)
Image of page 9

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

View Full Document Right Arrow Icon
Neurons  or nerve cells  receive stimuli and  transmit action potentials Organization Cell body  or soma Dendrites : input Axons : output Glial cells  or neuroglia Support and protect  neurons Nervous System: Cells of the Nervous System
Image of page 10
Cell Body - nucleus, Nissl substance Nissl substance = chromatophilic  substance = rough E.R: primary  site of protein synthesis.
Image of page 11

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

View Full Document Right Arrow Icon
Image of page 12
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