anatomy: nervous system 1

anatomy: nervous system 1

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1. which is false of the ventral horn of the spinal cord

  • Large ventral horn in L2-S4
  • is mixed sensory and motor nerve fibres
  • made up of cell bodies of lower motor neurons
  • the ventral horn of cord segments C3-C5 innervate the diaphragm
  • large ventral horn in C5-T1
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2. in regards to grey matter of the spinal cord which is true

  • made up of ventral,dorsal and posterior horns
  • the dorsal horns deal with motor responses
  • lateral horns are only present in the cervical and thorcaic regions
  • contains the cell bodies of pre-ganglionic sympathetic neurons
  • contains cell bodies of the motor neurons of the para-sympathetic nervous system

3. The dorsal rootlets connect with the dorsal ganglion which are sensory

  • True
  • False

4. in regards to white matter which is false

  • axons are mainly enclosed in a whit fatty substance called mylein sheaths
  • the dorsal median sulcus divides the ventral and lateral columns
  • mainly made up of axons
  • consists of ascending and descending fibres
  • surrounds the grey matter of the spinal cord

5. which is false of spinal nerves

  • C7 spinal nerve exits above the C7 vertebrae
  • the spinal nerve arises from the dorsal and ventral root ganglion
  • there are 31 pairs of spinal nerves exiting the vertebral canal via the intervertebral foramina
  • spinal nerves are mixed
  • spinal nerves are always paired
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Comments

Liz Harris

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Brilliant, great work. thanks Liz

Ruth Cave

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Hmmm! Clever clogs but very helpful. Ruth

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