the nervous system the endocrine system the brain

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Ch. 2: Biopsychology The Nervous System The Endocrine System The Brain

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Ch. 2: Biopsychology

The Nervous System The Endocrine SystemThe Brain

How does the Body Communicate Internally?

1. There are two types of ways your body communicates internally. They are…

- Through the nervous system

-Through the endocrine system

2. The nervous system usually generates your first, quick response.

3. Your endocrine system is run by your hormones which act as transmitters to the brain.

Nervous System

Network of neurons Neurons – cells that specialize in

receiving and transmitting information through the body

Split into Central and Peripheral Nervous System

Neurotransmitters

Biochemical substances that stimulate or suppress other neurons

Imbalances can cause major disorders

Ex: Dopamine, Serotonin

Neuron Activity

Central Nervous System

Made up of the brain and the spinal cord

Peripheral Nervous System

Connects the Central nervous system to the rest of the body

Split into Autonomic and Somatic Nervous Systems

Autonomic Nervous System

Part of Peripheral Nervous System Sends messages to internal organs Coordinates functions of internal

organs Ex: respiration or digestion

Somatic Nervous System

Part of Peripheral Nervous System Send messages to body’s muscles

This is what allows you to text

Endocrine System

Endocrine glands release hormones into the bloodstream where they affect a wide array of bodily functions and behaviors

They coordinate with the nervous system

Endocrine System

Hypothalamus- part of the brain that directs activity in the endocrine system.

Endocrine System

Pituitary gland (master gland) – receive messages from the hypothalamus to stimulate or inhibit the release of other glands hormones

Chart

Using pg. 57 in the text

Endocrine System

Thyroid Issues: Underactive – lack of energy, weight gain, dry

skin or hair Overactive- Increased nervousness, rapid heart

beat, weightloss

Endocrine System

Pancreas Issues: Type 2 Diabetes Pancreatitis▪ Flu-like symptoms, Weight decrease, rapid

pulse

Cerebral Cortex

Involved in complex mental processes

Separated into 4 lobes

Cerebellum

Regulates coordinated movements

Brain Stem

Sets brains alertness level and warning system

Spinal Cord

Pathway for neurons traveling to and from the brain

Hypothalmus

Manages body internal state

Frontal Lobe

Regulate motor movement and cognitive abilities like planning and decision making

Personality Motor Cortex- controls the body’s

voluntary muscles Motor speech area (Broca’s area)

Parietal Lobe

Process sensory information like touch, temperature, body position and pain

Right half communicates with the left side of the body – Left half communicates with the right side of the body

Temporal Lobe

Processes Sounds Stores long term

memories

Occipital Lobe

Processes vision and sensations from the eyes Color, movement,

shape, shading, and face recognition

Hemisphere SpecializationAREAS OF LEFT-HEMISPHERE DOMINANCE:

Verbal functions (for right-handers and most left-handers), including spoken and written use of language, as well as logical analysis, problem solving, and mathematical computation

AREAS OF RIGHT-HEMISPHERE DOMINANCE:

Nonverbal functions, including understanding spatial relationships (as presented, e.g., in jigsaw puzzles or maps), recognizing faces and interpreting gestures, perceiving and expressing emotion, and appreciating music and art

Hemisphere Activity

1 volunteer

Hemisphere Activation Activity

Students should separate into pairs and choose one person to be the observer.

Questions 1-4

Involved left hemisphere functions (verbal, math, analytic)

Trend- eye movements to the right when processing the question

Questions 5-8

Involved right hemisphere functions (nonverbal, spatial, holistic)

Trend – eye movement to the left from processing

Read the following words:

BlueGreenRedYellowRedOrangeGreen

BrownYellowPurpleRedOrangeBlue

Identify the following colors:

Name the color of the word:

BlueGreenRedYellowRedOrangeGreen

BrownYellowPurpleRedOrangeBlue