The PNS

Descripción

(Nervous System) Haematology and Anatomy Test sobre The PNS, creado por gina_evans0312 el 14/11/2013.
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Test por gina_evans0312, actualizado hace más de 1 año
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Resumen del Recurso

Pregunta 1

Pregunta
What is contained in the grey matter of the vertebra?
Respuesta
  • Cell bodies
  • Nerve cell processes
  • CSF

Pregunta 2

Pregunta
What's found in the white matter of the vertebra?
Respuesta
  • Nerve cell processes
  • Cell bodies
  • CSF

Pregunta 3

Pregunta
What is the role of the nerve cell processes in the vertebra?
Respuesta
  • Carry information to the brain/other parts of the spinal cord
  • Attach nerve cells to vertebra
  • Generation of cerebro spinal fluid

Pregunta 4

Pregunta
Define a nerve fibre
Respuesta
  • Axon and neurilemma
  • Axon and cell body
  • Dendrites and cell body

Pregunta 5

Pregunta
Define the neurilemma
Respuesta
  • Thin sheath around an axon
  • This sheath around the dendrite
  • Multinucleated cell body

Pregunta 6

Pregunta
What is the role of the epineureum?
Respuesta
  • To hold the fascicles together to form a nerve fibre
  • To hold the fascicles together to form a nerve
  • To hold the fascicles together to form a peripheral nerve

Pregunta 7

Pregunta
What are held together in the fascicle of a nerve?
Respuesta
  • Nerve fibers
  • Peripheral nerves
  • Axons

Pregunta 8

Pregunta
What holds together the nerve fascicle?
Respuesta
  • Epineurium
  • Perineurium
  • Endoneurium

Pregunta 9

Pregunta
What's the difference between an efferent and an afferent nerve?
Respuesta
  • Afferent nerves carry signals from the target organ to the CNS Efferent nerves carry signals away from the CSN to the target organ
  • Efferent nerves carry signals from the target organ to the CNS Afferent nerves carry signals away from the CSN to the target organ

Pregunta 10

Pregunta
What is particular about the cranial nerve?
Respuesta
  • They carry signals from the brain to the head
  • They are only found in the midbrain of the brain stem
  • They allow conscious control of brain function

Pregunta 11

Pregunta
Where do spinal nerves carry signals to?
Respuesta
  • From the CNS to the rest of body
  • Up and down the spinal cord
  • From the body to the spine

Pregunta 12

Pregunta
What is the role of the posterior rootlet?
Respuesta
  • They carry sensory nerves to the CNS from the target organ
  • They carry motor neurons from the target organ to the CNS
  • They supply the back of the body with motor nerves

Pregunta 13

Pregunta
What is the role of the anterior rootlet?
Respuesta
  • Carry motor neurons from the CNS to the target organ
  • Carry motor neurons from the target organ to the CNS

Pregunta 14

Pregunta
Posterior ramus- what does it do?
Respuesta
  • Supplies posterior trunk with nerves
  • Supplies posterior trunk with motor neurons
  • Supplies posterior trunk sensory nerves

Pregunta 15

Pregunta
What is the role of the anterior ramus?
Respuesta
  • Supplies anterior trunk with nerves
  • Supplies upper limbs with motor nerves
  • Supplies limbs with nerves
  • Supplies lower limbs with motor nerves

Pregunta 16

Pregunta
What is a myotome?
Respuesta
  • A type of food
  • Spanish for toast
  • Unilateral area of muscle mass innervated a single spinal nerve

Pregunta 17

Pregunta
What is a dermatome? -_-
Respuesta
  • Unilateral area of skin innervated by a single spinal nerve
  • Act in limbs as they don't have a posterior ramus
  • Act in limbs as they don't have an anterior ramus

Pregunta 18

Pregunta
A collection of anterior rami for a limb is called...?
Respuesta
  • A plexus
  • A spinal nerve
  • A spinoud

Pregunta 19

Pregunta
What defines a general visceral fibre as opposed to a spinal nerve?
Respuesta
  • They're from the autonomic system
  • They form multiple ganglia before reaching the target organ
  • They decussate multiple times (more than necessary)

Pregunta 20

Pregunta
General visceral afferent fibres are..
Respuesta
  • Sensory
  • Motor
  • Both

Pregunta 21

Pregunta
Where are parasympathetic fibres found in the CNS?
Respuesta
  • Brain stem- Cell bodies III, VII, IX and X
  • Brain stem- Cell bodies III, VII, and X
  • Brain stem- Cell bodies VII and X
  • S2-S4
  • S3-S5

Pregunta 22

Pregunta
Where are sympathetic fibres found on the CNS?
Respuesta
  • T1-L2
  • C5-T3
  • T3-L2
  • L3-C1

Pregunta 23

Pregunta
What tends to happen to the autonomic visceral fibres?
Respuesta
  • They tend to join the spinal nerve
  • They tend to dissercate with the spinal nerve
  • They branch rapidly inside the limbs

Pregunta 24

Pregunta
What is the difference between pre- and post- ganglionic neurons?
Respuesta
  • Pre are myelinated, post are not
  • Post are myelinated, pre are not

Pregunta 25

Pregunta
Where are sympathetic ganglia found?
Respuesta
  • Close to the spinal cord
  • Close to the target organ
  • Usually above/below the thoracic region
  • Rarely above/below the thoracic region

Pregunta 26

Pregunta
Where are parasympathetic ganglia found?
Respuesta
  • Away from the spinal cord
  • Towards the spinal cord
  • Not always part of the spinal nerve
  • Always part of the spinal nerve
  • Nuclei are found in the cranosacral region

Pregunta 27

Pregunta
Which have a sharper pain sensation?
Respuesta
  • Visceral afferent fibres
  • Sensory somatic neurons

Pregunta 28

Pregunta
Pain is triggered along a somatic nerve- describe the sensation
Respuesta
  • Sharp
  • Dull
  • Ill-defined
  • Well localised pain

Pregunta 29

Pregunta
What is the cause of referred pain in visceral afferent fibres?
Respuesta
  • Visceral fibres reference back to the spinal cord, and the nerve bodies can become confused as they serve separate areas
  • Visceral fibres reference back to the spinal cord, and the nerve fibres can become confused as they serve separate areas
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