Chapter 10- Intelligence
Terms
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- viral encephalitis
- viral infection that targets the brain and central nervous system
- arboviruses
- transmitted thru misquitoes and ticks (West Nile)
- enteroviruses
- transmitted thru food and drink
- human brain
- 3 lbs, 2% of body weight, 20% of body's energy
- axon
- conduct electrical signals away from the cell body..release neurotransmitters
- dendrites
- conduct electrical signsl toward cell body...signal receiver
- synaptic cleft
- physical separation betw. neuromuscular junctions (where neurotransmitters go after axon)
- cannot survive without (2)
- oxygen and glucose
- processing center in the brain for short-term memory
- hippocampus
- constant stream of electrical signals
- electroencephalogram (EEG)
- brain imaging techniques (2)
- CAT scan, MRI
- human brain evolution
-
-mate attraction-> sexual selection
-language-> intelligence, wit, eloquence - Moon Jelly
- invented muscle for movement and nerve cells to coordinate movement,
- Flatworm
- little brain, conquered both aquatice and terrestrial environ., most efficient animal parasite
- Mud Wasp
- female digs hole and connects to surface with tunnel, creates bell w/ smooth interior to prevent predators
- Honey Bee
- perform many duties, small brain, last 2 weeks of life-> change into foragers, uses sun as tool, add an additional 160,000 neurons
- Meerkat
- large brain compared to size, complex social interactions. large groups, work together to care for young and get food
- Rehus Macaque
- social animal, hierarchical system-> saftey and companionship. male alliance
- Chimps
- social animal, 150 in group, grooming-> alliances. sophisticated social/political skills like humans. rage war against neighboring groups