Capitol Tech U Doctoral Presentation - April 2024.pptx
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DOC-20230617-WA0003..pptx
1. The Nervous system is:
• A physically connected network of cells,
tissues and organs that allow us to
communicate with and react to the
environment and perform life activities.
11. Neuroglia vs. Neurons
• Neuroglia divide.
• Neurons do not.
• Most brain tumors are “gliomas.”
• Most brain tumors involve the neuroglia
cells, not the neurons.
• Consider the role of cell division in cancer!
19. Application
• In Multiple Scleroses the myelin sheath is
destroyed.
• The myelin sheath hardens to a tissue called
the scleroses.
• This is considered an autoimmune disease.
• Why does MS appear to affect the muscles?
44. Frontal Lobe
• Pre Central Cortex
– Primary Motor Area (4- Movement + &-)
– Premotor Area
• 6 – Movement coordination (Patterned Movements)
• 8 – Eye ball Movement & Frontal Eye Field
• Brocas Area (44&45) - Speech
– Supplementary Motor Area – Skilled Movements
• Pre Frontal Cortex
– 9 -14,23,24,29 &32 – Emotion, Learning, Memory,
Behaviour & Intelligence
45. Applied Physiology
– Hemeplegia - A4
– Grasping Reflexes - A6
– Aphasia – Brocas Area A44&A46
– Emotional Instability & Loss of Memory ( PFA)
– ( Parkinsonisons & Huntingtons Chorea)
– Hyperphagia,
– Urinary & Rectal Incontinence,
– Tremor,
– Disorientation – Speech, Movement Etc.
46. Parietal Lobe
• Somaesthetic Area 1(Sensory Area)
– 1 – Cutaneous & Kinesthetic Sensations
– 2 &3 – Integrate C&K, Commands Motor
• Somaesthetic Area 2
– Perceives C&K Sensations
• Somaesthetic Association Area
– 5 &7 – Combined Sensations
– Contralateral Disturbance in C&K Sensation,
Tactile Discrimination
47. Temporal Lobe
• Primary Auditory Area
– 41&42 – Percieve Auditory Sensation
– Werniks Area – Interprets Auditory Sensation
• Secondary Auditory Area
– 22 – Interprets Auditory Sensation
• Area for Equilibrium
• Kluver – Bucy Syndrome – Aphasia,
Tinnitus,Halucination, Smell & Taste disturbance
48. Occipital Lobe
• Primary Visual Area
– 17 – Perceives Visual Sensation
• Secondary Visual Area
– 18 – Interprets Visual Sensation
• Occipital Eye Field
– 19 – Eyeball Reflex & Movement
– Hemianopia & Blindness
71. Major Functions
Brain component
1. Sensory perception
2. Voluntary control of movement
3. Language
4. Personality traits
5. Sophisticated mental events, such as thinking memory,
decision making, creativity, and self-consciousness
1. Inhibition of muscle tone
2. Coordination of slow, sustained movements
3. Suppression of useless patterns of movements
1. Relay station for all synaptic input
2. Crude awareness of sensation
3. Some degree of consciousness
4. Role in motor control
1. Regulation of many homeostatic functions, such as temperature
control, thirst, urine output, and food intake
2. Important link between nervous and endocrine systems
3. Extensive involvement with emotion and basic behavioral patterns
1. Maintenance of balance
2. Enhancement of muscle tone
3. Coordination and planning of skilled voluntary muscle activity
1. Origin of majority of peripheral cranial nerves
2. Cardiovascular, respiratory, and digestive control centers
3. Regulation of muscle reflexes involved with equilibrium and posture
4. Reception and integration of all synaptic input from spinal cord;
arousal and activation of cerebral cortex
5. Role in sleep-wake cycle
Cerebral cortex
Basal nuclei
Thalamus
Hypothalamus
Cerebellum
Brain stem
(midbrain, pons,
and medulla)
81. • Cerebral edema
– Swelling from the inflammatory response
– May compress and kill brain tissue
• Subdural hematoma
– Collection of blood below the dura
• Standards for these conditions were revised
in 2004. Please check out TBIs at
Mayoclinic.com for more current
information on diagnostic terminology.