The Brain

1
The Brain
2
Sensory neurons that travel to the brain are?

1. Efferent
2. Somatic
3. Peripheral
4. Afferent

3
Cerebral Hemisphere

• Halves of the brain
• Gyri- Ridges of tissue on hemispheres
• Sulci- shallow grooves
• Fissures- deep grooves

4
Lobes

• Parietal lobe- somatic sensory area
• Occipital lobe- visual area
• Temporal lobe- auditory area
• Frontal lobe- motor area

5
Someone that has a vision problem may have
injured their

1. Occipital
2. Frontal
3. Occipital
4. Temporal

6
Gray matter vs White matter

• Gray matter- the outermost layers of the lobes
• White matter- deeper tissue made of nerve bundles

7
Corpus Callosum

• Connects the two halves of the brain

8
Interbrain

• Thalamus- directs sensory info
• Hypothalamus- Helps maitain homeostasis

9
Medulla Oblongata

• Connects the brain with spinal cord

10
This portion of the brain maintains homeostasis

1. Thalamus
2. Pons
3. Cerebellum
4. Hypothalamus

11
Cerebellum

• Under occipital lobe
• Provides coordination
• Helps with balance and equilibrium

12
Protection of the brain

• Meninges- three membranes
• Dura mater
• Arachnoid layer
• Pia mater
• Cerebrospinal fluid- provides cushion around
  spinal cord

13
Brain injuries

• Concussion- no permanant brain damage
• Contusion- tissue destruction
• Cerebral Edema- swelling of the brain
• Cerebrovascular accident (strokes)
• Blood circulation to the brain is blocked

14
If you have a concussion which portion of your
nervous system may be affected..

1. Central nervous system
2. Peripheral nervous system
3. Somatic nervous system
4. Sympathetic nervous system