Sub cortical Brain Structures Sub cortical underneath the

Sub cortical Brain Structures Sub cortical - underneath the cortex

Organization of the Brain Hindbrain Midbrain Forebrain

Organization of Hindbrain Cerebellum Medulla Pons

The Parts of the Hindbrain • Medulla • Regulates unconscious functions • Involuntary breathing, heart rate & blood pressure

Cerebellum • Small protrusion above medulla • Function- Coordinates the smooth movement of fine muscles and balance • Cat Love

Teen Brain-Cerebellum (You don’t understand 6 min) http: //www. pbs. org/wgbh/pages/ frontline/video/flv/generic. html? s=frol 02 p 392&continuous=1

Organization of Forebrain ( also cerebrum i. e. lobes) Forebrain Thalamus Limbic System Hypothalamus Endocrine System

Hypothalamus • Nuclei involved in a variety of behaviors – – sexual behavior hunger, thirst Sleep body temperature regulation

• Thalamus directs sensory information from the touch receptors to the cerebrum. • Exception is smell • http: //www. youtu be. com/watch? v= QWil 81 gl 50 I&saf e=active ( 1: 00 min) Thalamus

Organization of Limbic System Hippocampus Amygdala

• Inputs come from all senses • Amygdala ‘reads’ emotional significance of inputs • Output influences such functions as heart rate, adrenaline release Amygdala

Amygdala and Emotion Amygdala interprets facial expression Aggression in Monkeys & Cats (Anderson, 2000)

Amygdala in teens Frontline Teen Brain http: //www. pbs. org/wgbh/pages/fr ontline/video/flv/generic. html? s=fr ol 02 sfabq 392&continuous=1

Hippocampus • Important in forming new memories • Case of Jeremy • You tube Olive Wearing • ( no short term)

Brain Review • Which chemicals pass across the synaptic gap and increase the potential the next neuron will fire? • A. Synaptic terminals • B. Inhibitory NTS • C. Excitatory NTs • D. Potassium & Sodium

• The three main categories that organize the entire brain are the • A. old brain, new brain and cerbral cortex • B. Lower , Middle & Upper Brain • C. Hindbrain, Midbrain & Forebrain • D. Neurons, Synapse & Cerebral Cortex

Which sentence best describes Neural transmission? • A. An action potential is created in the neuron, the charge travel down the axon, and chemicals are releases the cross the synapse. • B. Neurotransmission is an electrochemical process both inside and outside the cell. • C. NTs in hindbrain are transmitted to forebrain, causing an axon potential in cortex