Psychology

The Emotional Brain  Structures lying deep within the cerebral hemispheres.  Coordinates behaviors needed to satisfy motivational and emotional urges arising in the hypothalamus.  Also involved in memory Limbic System Overview

Limbic System What does emotional brain mean? Intense game + Friend/Phone Interrupting = yea……

The Endocrine System Consists of a group of glands that produce hormones Works with nervous system to control and coordinate all other body systems Effects body systems by chemical stimuli

Hormones Chemical messengers with regulatory effects on cells or organs Some affect many tissues Growth hormone Thyroid hormone Insulin Some affect a specific tissue (target tissue) Thyroid-stimulating hormone (TSH) Adrenocorticotropic hormone (ACTH)

Other Hormone-Producing Tissues Substances that regulate body actions are also produced by Stomach Small intestine Kidneys Brain Atria of heart Placenta

Limbic System Structure Hippocampus: Learning and Memory

Limbic System Structure Hippocampus: Learning and Memory Amygdala: Emotions and Aggression

Limbic System Structure Hippocampus: Learning and Memory Amygdala: Emotions and Aggression Hypothalamus: Hunger, Thirst Temperature Control

Limbic System Structure Hippocampus: Learning and Memory Amygdala: Emotions and Aggression Hypothalamus: Hunger, Thirst Temperature Control Thalamus: Relay Center for Sensory Information

Limbic System Structure Hippocampus: Learning and Memory Amygdala: Emotions and Aggression Hypothalamus: Hunger, Thirst Temperature Control Thalamus: Relay Center for Sensory Information

Set of glands that regulate the flow or hormones into the bloodstream Relatively slow communication system Interconnected with the nervous system Pituitary, thyroid, parathyroid, adrenal glands, pancreas, ovaries, testes Endocrine System

Hypothalamu s Pituitary Thyroid Adrenal cortex Adrenal medulla Pancreas Ovaries (female) Testes (male)

Endocrine Hypothalamus: It controls body temperature, hunger, thirst, fatigue, sleep and circadian cycles. Controls the pituitary gland

Endocrine Pituitary Regulates growth Controls thyroid, ovaries or testes, pancreas, and adrenal cortex Regulates water and salt metabolism The “master gland”

Endocrine Thyroid Controls the metabolic rate The function of this gland is to cause lymphocytes (white blood cells) to become T -cells -the cells which become part of the body’s defence against infection.

Endocrine Adrenal Regulates carbohydrate and salt metabolism Prepares the body for action Secretes stress hormones The hormones produced by the adrenals prepare the body for stress. For example, the hormone epinephrine (or adrenaline) increases pulse rate and rate of breathing; also speeds up the conversion of food into energy.

Endocrine Pancreas Controls levels of insulin and glucagon Regulates sugar metabolism produce the hormones glucagon and insulin. Insulin lowers blood sugar level while glucagon raises blood sugar level. So, the hormones in the pancreatic islets regulate the sugar level of the blood.

Endocrine Ovaries (female) Affect physical development, reproductive organs, and sexual behavior - Produce Estrogens- prepare for fertilized eggs.

Endocrine Testes (male) Affect physical development, reproductive organs, and sexual behavior -Produce Testosterone