3.01 Remember the structures of the nervous system 3.02 Understand the functions and disorders of the nervous system - PowerPoint PPT Presentation

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3.01 Remember the structures of the nervous system 3.02 Understand the functions and disorders of the nervous system

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Title: 3.01 Remember the structures of the nervous system 3.02 Understand the functions and disorders of the nervous system


1
3.01 Remember the structures of the nervous
system3.02 Understand the functions and
disorders of the nervous system
2
3.01, 3.02 Essential Questions
  • What are the structures of the nervous system?
  • What are the functions of the nervous system?
  • What are some disorders of the nervous system?
  • How are nervous system disorders treated?
  • How does the nervous system relate to the bodys
    communication systems?

3.02 Understand the functions and disorders of
the nervous system
2
3
Introduction Structures of the nervous system
4
Cellular structures of the nervous system
  • Neuron- a nerve cell
  • Extensions of the neuron
  • Dendrites - many
  • Axon - one

5
Cellular structures of the nervous system
  • Neuron- a nerve cell
  • Myelin sheath - a special covering of the axon
  • Synapse the space between neurons

6
Functions of the nervous systemNeurons
  • What do they do?
  • How do these functions impact health?
  • Sensory
  • Motor
  • Associative

3.02 Understand the functions and disorders of
the nervous system
6
7
Structures of the nervous system
  • Central nervous system
  • Brain
  • Spinal cord

8
Structures of the nervous system
  • Peripheral nervous system
  • Nerves
  • Cranial nerves
  • Spinal nerves
  • Sensory receptors

9
Structures of the central nervous system BRAIN
10
Functions of the central nervous system Brain
  • Think about it
  • How do you use your brain?

3.02 Understand the functions and disorders of
the nervous system
10
11
Structures of the central nervous system BRAIN
  • Cerebrum
  • Divided into two hemispheres (right and left)
  • Frontal lobe
  • Occipital lobe
  • Parietal lobe
  • Temporal lobe

12
Functions of the central nervous system Brain
  • How do you use your Cerebrum?
  • Frontal lobe
  • Parietal lobe
  • Occipital lobe
  • Temporal lobe

12
13
Structures of the central nervous system BRAIN
  • Diencephalon
  • Located between the cerebrum and the midbrain
  • Structures
  • Thalamus
  • Hypothalamus
  • Pineal body
  • Pituitary gland

14
Structures of the central nervous system BRAIN
  • Diencephalon
  • Thalamus spherical mass of gray matter deep in
    the cerebral hemispheres
  • Hypothalamus lies below the thalamus part of
    the limbic system
  • Pineal body endocrine system gland
  • Pituitary gland endocrine system gland

15
Functions of the central nervous system BRAIN
  • Diencephalon
  • Located between the cerebrum and the midbrain
  • Structures
  • Thalamus
  • Hypothalamus
  • Pineal body
  • Pituitary gland

15
16
Functions of the central nervous system BRAIN
  • Diencephalon
  • Thalamus spherical mass of gray matter
  • Hypothalamus
  • Pineal body
  • Pituitary gland

16
17
Structures of the central nervous system BRAIN
  • Limbic system
  • Located in the center of the brain
  • Encircles the top of the brain stem.
  • Composed of the amygdala, hippocampus, cingulated
    gyrus, and other intricate structures.
    (Informational only for reference.)

18
Structures of the central nervous system BRAIN
  • Cerebellum

19
Functions of the central nervous system
BrainHow do you use your cerebellum?
  • Discuss the functions of the cerebellum
    illustrated in this gymnasts picture.

19
20
Structures of the central nervous system BRAIN
  • Brain stem
  • Midbrain
  • Pons
  • Medulla oblongata

21
Functions of the central nervous system Brain
  • How do you use your brain stem?
  • Midbrain
  • Pons
  • Medulla oblongata

21
22
Functions of the central nervous system Brain
  • Discuss the relevance of the
  • brain stem for these functions?

22
23
Structures of the central nervous system BRAIN
  • Meninges
  • Dura mater
  • Outermost layer
  • Arachnoid
  • Middle layer
  • Pia mater
  • Innermost layer

24
Structures of the central nervous system BRAIN
  • Ventricles - lined cavities deep within the brain
  • filled with cerebrospinal fluid
  • Choroid plexus rich network of blood vessels

25
Structures of the central nervous system
Spinal Cord
  • Surrounded by the vertebrae, meninges, and
    cerebrospinal fluid

26
Functions of the central nervous systemSpinal
Cord
  • Discuss the functions of the spinal cord.
  • What is the relevance to health?

Brain
Body Structures
26
27
Structures of the peripheral nervous system
Anterior View
  • Peripheral nervous system
  • 12 cranial nerves
  • 31 pairs of nervous

Posterior view
27
28
Structures of the peripheral nervous system
  • I. Olfactory
  • II. Optic
  • III. Oculomotor
  • IV. Trochlear
  • V. Trigeminal
  • VI. Abducens
  • VII. Facial
  • VIII. Vestibulocochlear
  • IX. Glossopharyngeal
  • X. Vagus
  • XI. Accessory
  • XII. Hypoglossal

Cranial nerves
29
Structures of the peripheral nervous system
  • Peripheral nervous system
  • 31 pairs of spinal nerves

30
Structures of the peripheral nervous system
  • Motor system
  • Autonomic nervous system
  • Sympathetic nervous system
  • Parasympathetic nervous system
  • Somatic nervous system

31
Autonomic nervous system
  • Sympathetic nervous system
  • Extends from the base of the brain, along both
    sides of the spinal column
  • These nerves connect to all internal organs
  • Parasympathetic nervous system
  • The vagus nerve connects the medulla with organs
    of the upper body
  • The pelvic nerve emerges from the spinal cord and
    connects with the organs of the lower body

32
Somatic nervous system
  • These nerves are located along the spinal cord.
  • Connect skeleton, muscles and joints to the brain.

33
Functions of the Peripheral nervous system
Also called sensory-somatic nervous system
  • Cranial
  • Spinal
  • What do the peripheral nerves do?
  • What is their relevance to health?

33
34
Structures of the central and peripheral nervous
systems
Check your knowledge
35
Structures of the nervous system
Remember this!
36
Functions of the nervous system
  • Discuss the relevance of the nervous system to
    the bodys communication systems.

36
37
Disorders of the nervous system and their
treatments
  • Alzheimers disease
  • Who is at the greatest risk of developing
    Alzheimers disease?
  • What are the symptoms?
  • How is it treated?
  • How is it prevented?

37
38
Disorders of the nervous system and their
treatments
Multiple Causes
cause
cause
cause
  • Cerebral palsy
  • What is cerebral palsy?
  • How is it treated?
  • Which healthcare team members will take care of
    the patient with cerebral palsy?

cause
cause
38
39
Disorders of the nervous system and their
treatments
  • Epilepsy
  • What is epilepsy?
  • What are the symptoms?
  • How is it treated?

Should a person with epilepsy be allowed to drive?
39
40
Disorders of the nervous system and their
treatments
  • Hydrocephalus
  • Hydro- cephal -us
  • Define the terms. Do the meanings of the parts
    represent the whole?
  • Who is most likely to develop hydrocephalus?
  • How is it treated?

40
41
Disorders of the nervous system and their
treatments
  • Meningitis
  • What causes of meningitis?
  • What are the symptoms?
  • How is it treated?

41
42
Disorders of the nervous system and their
treatments
  • Multiple sclerosis
  • What are the symptoms?
  • Who is most likely to develop it?
  • How is it treated?
  • What is the prognosis?

42
43
Disorders of the nervous system and their
treatments
  • Neuritis
  • neur- -itis
  • Discuss the terms.
  • Discuss the pattern of symptoms presented and
    why.
  • How is neuritis prevented?

43
44
Disorders of the nervous system and their
treatments
  • Paralysis
  • disabling of a nerve
  • How does this quote relate to paralysis?
  • What are the symptoms?
  • What is the prognosis?

44
45
Disorders of the nervous system and their
treatments
  • Parkinsons disease
  • What are the symptoms of Parkinsons disease?
  • Who is most likely to have this disorder?
  • How is it treated?

45
46
Disorders of the nervous system and their
treatments
  • Poliomyelitis
  • What is the impact of this disorder?
  • How can it be prevented?
  • How is it treated?
  • What is the prognosis?

46
47
Disorders of the nervous system and their
treatments
  • Spinal cord injury
  • What are the symptoms?
  • What determines a patients symptoms?
  • How is it treated?
  • What are the risk factors for teens?

47
48
Disorders of the nervous system and their
treatments
  • West Nile Virus
  • Where is the greatest incidence of West Nile
    virus?
  • What are the risk factors?
  • How is it prevented?
  • How is it treated?

48
49
Disorders of the nervous system and their
treatments
  • What are some common symptoms of neurological
    disorders?
  • What are some common prognoses?
  • Why do these commonalities exist?

49
50
3.02 Essential Questions
  • What are the structures of the nervous system?
  • What are the functions of the nervous system?
  • What are some disorders of the nervous system?
  • How are nervous system disorders treated?
  • How does the nervous system relate to the bodys
    communication systems?

50
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