nerve terms

Card Set Information

Author:
codyrayh
ID:
141073
Filename:
nerve terms
Updated:
2012-03-11 21:37:23
Tags:
animal
Folders:

Description:
animal a and p
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user codyrayh on FreezingBlue Flashcards. What would you like to do?


  1. Action potential
    Momentary change in electrical potential on the surface of a cell, especially of a nerve or muscle cell, that results in the transmission of an electrical impulse
  2. Arachnoid mater
    Middle layer of meninges that has spider web appearance and covers larger blood vessels
  3. Autonomic nervous system
    Group of motor neurons that connect CNS to smooth muscles, cardiac muscles, and endocrine glands and is associated with involuntary control of body functions
  4. Axon
    Cytoplasmic extension of neuron that acts to transmit impulse away from the cell
  5. Axon hillock
    Area where axon where it emerges from the soma and is the area where nerve impulse is initiated
  6. Axon terminal
    Terminal end of axon containing a presynaptic membrane that releases a neurotransmitter to elicit a response on another neuron or other tissue
  7. Blood brain barrier
    Biological structure that restricts the passage of various substances and microscopic objects between the bloodstream and the CNS, while still allowing the passage of substances essential to metabolic function
  8. Brain
    Organ of CNS that serves as the primary center for the regulation and control of bodily activities
  9. Central nervous system
    Section of vertebrate nervous system that includes the brain and spinal cord which is involved in receiving sensory information, integrating or interpreting information and generating response
  10. Cerebrospinal fluid
    Fluid that surrounds brain and spinal cord
  11. CNS
    Section of vertebrate nervous system that includes the brain and spinal cord which is involved in receiving sensory information, integrating or interpreting information and generating response
  12. CSF
    Fluid that surrounds brain and spinal cord
  13. Dendrite
    Cytoplasmic extensions of neuron that act as receptors to external stimuli or other neurons
  14. Dura mater
    Tough inflexible outer layer of meninges that restricts movement
  15. Exteroceptors
    Sensory neurons that respond to external stimuli or stimuli outside the body
  16. Gap junction Protein structures found between neurons at the synapse that allow communication
  17. Interoceptors
    Sensory neurons that monitor visceral organ and their function
  18. Meninges
    Group of membranes that surround CNS & serves to protect it from the environment
  19. Motor neuron
    Neurons that carry impulses from brain to skeletal, smooth, and cardiac muscles and endocrine glands in the body to elicit a response
  20. Myelin sheath
    Phospholipids layer located on axon that increase the speed of impulse in providing insulation to electrical current
  21. Nervous system
    System that functions by allowing animal to interact with internal and external environments
  22. Neuron
    Specialized, electrically excitable cell that processes and transmits information by electrical and chemical signaling
  23. Nodes of Ranvier
    Area between myelin sheath in which the axon has no protection
  24. Parasympathetic neuron
    Group of autonomic neurons that are involved in energy conservation and digestive tract control and tends to inhibit stress responses
  25. Peripheral nervous system
    All nervous tissue except the brain and spinal cord and includes sensory neurons responsible for collecting sensory information and motor neurons responsible for eliciting responses from brain
  26. Pia mater
    • Inter layer of meninges that is very thin fibrous covering that is essentially
    • attached to brain/spinal cord
  27. PNS
    All nervous tissue except the brain and spinal cord and includes sensory neurons responsible for collecting sensory information and motor neurons responsible for eliciting responses from brain
  28. Proprioceptors
    Sensory neurons that monitor muscles and joints
  29. Sensosry neuron
    Neurons that collect information from internal and external environment and sends this information to CNS for processing
  30. Soma
    Cell body of neuron that nucleus, ribsomes, smooth and rough endoplasmic reticulum, mitochondria and golgi apparatus
  31. Somatic nervous system
    Group of motor neurons that is associated with voluntary control of body movements via skeletal muscles
  32. Spinal cord
    Nervous tissue that extends from brain through vertebral canal
  33. Sympathetic neuron
    Group of autonomic neurons that are involved in fight or flight or emergency situations and mediates increases in alertness, heart rate, blood pressure, sweating & energy mobilization
  34. Synapse
    Junction between two neurons that the impulse crosses either a chemical reactions or an electrical channel

What would you like to do?

Home > Flashcards > Print Preview