KIN 131 SL9 Flashcards

1
Q

Are there nerves in the CNS

A

No

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2
Q

In the CNS what is a group of axons travelling together called

A

tract, pacthway, commissure

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3
Q

In the CNS when cell bodies of neurons that have similar function cluster together what is this called

A

Nuclei

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4
Q

What is a ganglia

A

In the PNS when cell bodies of neurons that have similar functions cluster together what is this called, they also connect the preganglionic neuron to the post ganglionic neuron

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5
Q

what does the hind brain become

A

Pons, medulla oblongata and the cerebellum

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6
Q

What connects the left and right hemispheres of the cerebrum

A

Corpus callosum

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7
Q

Describe the 3 layers of brain matter from superficial to deep

A

1.Cerebral cortex: superficial grey matter comprised mostly of cell bodies
2.White matter: tracts of myelinated axons
3.Subcortical nuclei: grey matter that is deep to white matter

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8
Q

What part of the brain has the frontal, parietal, occipital and temporal lobe, what is its function

A

This is the cerebral cortex and it is responsible for complex integration of information

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9
Q

what does subcortical nuclei do

A

it is important for controlling movement, posture and complex aspects of behaviour

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10
Q

What system is responsible for learning, emotional experience, behaviour, visceral/endocrine function, what parts of the brain make up this system

A
  1. the limbic system
  2. frontal, temporal, thalmus, hypothalamus, the pathways that connect them
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11
Q

what does the thalmus do

A

integration center for the brain, controls arousal, focusing attending and filtering extraneous info

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12
Q

what part of the brain contains the pineal gland what does it do

A
  1. epithalamus
  2. responsible for control of our circadian rhythm
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13
Q

what is the master command center for neural endocrine coordination what is it connected to

A
  1. hypothalamus
  2. pituitary gland
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14
Q

what is the cerebellum comprised of and what is its function

A
  1. superficial grey matter
    2.movement coordination, posture and balance
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15
Q

What part of the brain is essential for breathing, heart rate, swelling refelx, what parts of the brain make this sexciton

A
  1. brainstem
  2. midbrain, pons, medulla oblongata, reticular formation
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16
Q

what does the brainstem do

A

it is essential for life and recipes input from the CNS and process it

17
Q

where cna meninges be found, what is its function

A

1.between soft neural tissue and bones in the skull/spine
2. protects the CNS and circulates/ absorbs CSF

18
Q

what space is filled with CSF

A

subarachnoid space

19
Q

what cells make CSF and where

A

ependymal cells make CSF and can be found in the choroid plexus

20
Q

what doe CSF use to circulate through the brains

A

ventricles

21
Q

what is the blood-brain barrier and what makes it so different compared to other organs

A
  1. this is where substance exchange between the blood and extracellular fluid of the CNS
  2. it is highly regulated
22
Q

what is the blood brian barier made of

A

astrocyes

23
Q

what is this called “protein complexes that restrict the movement of polar molecules into the CNS”

A

tight junction

24
Q

what can cross the blood-brain barrier, and what do substances that can not cross the blood-brain barrier use to cross it

A

lipid soluble solutes, substances that can’t cross rely on transport proteins

25
Q

where do afferent and efferent neurons come into and out of in the spinal cord

A

afferent neruons dorsal side
efferent neutrons ventral side

26
Q

what is the role of the PNS

A

transmit signals between the CNS and the effector organ

27
Q

how many pairs of nerves are there in the PNS

A

43

28
Q

what are the key aspets of the somatic nervous system, where are they found

A
  1. inervate skeletal musvles
  2. cell bodies found in the brainstem or ventral horn of spinal cord
  3. Large-diameter myelinated axons travel from the CNS to skeletal muscle without additional synapse
  4. excitatory only
29
Q

what are the key aspects of the autonomic nervous system

A
  1. efferent innervation of tissues other than skeletal muscle
  2. can be excitatory or inhibitory
  3. there are 2 neurons in series that connect the CNS to the effector organ (1st neuron in CNS, synapse between the preganglionic and post ganglionic is in the autonomic ganglion)
30
Q

What are the key aspects of the Sympathetic nervous system

A
  1. fight or flight
  2. typical effects are body wide
  3. neurons leave through the thoracic or lumbar regions
  4. Major NT between pre/post ganglionic is ACh
  5. Major NT post ganglionic is NE
31
Q

what are the key aspects of parasympathetic nervous system

A
  1. rest and digest
  2. neurons leave the spinal cord at brainstem nd sacral region of
  3. Major NT released pre/post ganglionic is ACh