Neurology
Overview
Lobes:
1. Frontal Lobe
Decision making, higher mental function aka
super ego.
2. Parietal Lobe
Integrating sensory information, manipulation of
objects and knowledge of numbers.
3. Occipital Lobe
Contains primary visual cortex
4. Temporal Lobe
Receives signals from cochlea, auditory.
5. Cerrebellum (below
temporal lobe) Provides the tactics of
muscle movement almost like an instruction set.
6. Medula Oblongata
conduct functions, ala transfer information.
Cranial nerves. Integrating function, pain
sensation, alertness, cardio vascular control.
7. Spinal Cord
Fissures:
Central Fissure (Central
sulcus or Rolandic fissure) Separates the
parietal lobe from the frontal lobe and the
primary motor cortex from the primary
somatosensory cortex.
Occipital Fissure (
Sylvian Fissure (Lateral
sulcus or lateral fissure) Divides the
frontal lobe and the parietal lobe on both
hemispheres of the brain. Develops very early,
around the fourteenth gestational week.
Exoccipital Fissure
Functions
Frontal Lobe
v
Overall function involved in
planning, organizing, problem solving, selective
attention, personality and variety of higher
cognitive functions involving behaviour and
emotions.
v
Pre-frontal Cortex Important
for higher cognitive functions and personality
determination.
v
Pre-motor area modify
movements/
v
Motor area Produce movements.
Symptoms of Issues:
v
Impairment of recent memory,
inattentiveness, inability to concentrate,
behaviour disorders, difficulty in learning new
information. Lack of inhibition (inappropriate
social and/or sexual behaviour). Emotional
lability. Flat affect.
v
Contralateral Plegia (paralysis)
paralysis of opposite side of body to where
the problem is.
v
Paresis (weakness) partial
loss of or impaired movement.
v
Expressive/motor aphasia
(Brocas aphasia, agrammatic aphasia)
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