FRHD 1010 Chapter Notes - Chapter 3-4: Asthma, 18 Months, Attention Span

• School: University of Guelph
• Department: Family Relations and Human Development
• Course: FRHD 1010
• Professor: Susan Chuang

Document Summary

Neurons: one of billions of nerve cells in the cns, especially in the brain. Cortex: the outer layers of the brain in humans and other mammals. Most thinking, feeling, and sensing involve the cortex. Where most neurons are: the final part of the brain to mature is the prefrontal cortex, the area of the cortex at the very front of the brain that specialized in anticipation, planning, and impulse control. Axons: a fibre that extends from a neuron and transmits electrochemical impulses transmitted from other neurons via their axons. Dendrites: a fibre that extends from a neuron and receives electrochemical impulses transmitted from other neurons via their axons. Synapse: the intersection between the axon of one neuron and the dendrites of other neurons. Neurotransmitter: a brain chemical that carries info from the axon of a sending neuron to the dendrites of a receiving neuron. According to one expert, 40 000 (cid:374)e(cid:449) s(cid:455)(cid:374)apses are for(cid:373)ed e(cid:448)er(cid:455) se(cid:272)o(cid:374)d i(cid:374) the i(cid:374)fa(cid:374)t"s (cid:271)rai(cid:374).