The Nervous and Endocrine Systems Unit 1 Lesson 5
RED SLIDE: These are critical notes that should be recorded in your science journal. First and last Name Science, Grade, Class Copyright © 2010 Ryan P. Murphy
RED SLIDE: These are notes that are very important and should be recorded in your science journal. BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly. Copyright © 2010 Ryan P. Murphy
Keep an eye out for “The-Owl” and raise your hand as soon as you see her. She’ll be hiding somewhere in the slideshow Copyright © 2010 Ryan P. Murphy
“Hoot, Hoot” “Good Luck!” Keep an eye out for “The-Owl” and raise your hand as soon as you see her. She’ll be hiding somewhere in the slideshow “Hoot, Hoot” “Good Luck!” Copyright © 2010 Ryan P. Murphy
New Area of Focus: The Nervous System Copyright © 2010 Ryan P. Murphy
Everything we have learned so far, and everything you will ever learn takes place in the nervous system. Copyright © 2010 Ryan P. Murphy
The Nervous System is made of structures that control the actions and reactions of the body in response to stimuli from the environment. Has 2 parts: Central Nervous System (CNS) Peripheral Nervous System (PNS) Pg. 60
The nervous system receives and then sends out information about your body. It also monitors and responds to changes in your environment. Copyright © 2010 Ryan P. Murphy
Nervous System coordinating it all The nervous system receives and then sends out information about your body. It also monitors and responds to changes in your environment. Nervous System coordinating it all Copyright © 2010 Ryan P. Murphy
While you’re using your nervous system for all of your senses… Copyright © 2010 Ryan P. Murphy
While you’re using your nervous system for all of your senses… It’s working double controlling all of the things in your body to keep you living? Copyright © 2010 Ryan P. Murphy
Activity Stimulus! Copyright © 2010 Ryan P. Murphy
Activity Stimulus! Very slowly move your finger until it touches your eyelash.
Activity Stimulus! Very slowly move your finger until it touches your eyelash. A reflex action will cause your eye to blink.
Activity Stimulus! Very slowly move your finger until it touches your eyelash. A reflex action will cause your eye to blink.
Activity Stimulus! You can now decide to flick the back of your neck with your with your thumb and middle finger causing pain. This is a conscious voluntary action that you have control over. Copyright © 2010 Ryan P. Murphy
Activity Stimulus! You can now decide to flick the back of your neck with your with your thumb and middle finger causing pain. This is a conscious voluntary action that you have control over. Copyright © 2010 Ryan P. Murphy
Activity Stimulus! You can now decide to flick the back of your neck with your with your thumb and middle finger causing pain. This is a conscious voluntary action that you have control over. Copyright © 2010 Ryan P. Murphy
Activity Stimulus! You can now decide to flick the back of your neck with your with your thumb and middle finger causing pain. This is a conscious voluntary action that you have control over. Copyright © 2010 Ryan P. Murphy
The messages that are constantly traveling through your body are carried by the neuron or nerve cells.
Neuron: A specialized cell transmitting nerve impulses.
Neuron: a cell that moves messages in the form of fast-moving electrical energy These messages are called impulses . Pg. 62
What are the parts of a neuron? Cell body: main part of neuron Dendrite: short, branched extension of the cell body Axon: extension of the cell body (arm) Pg. 63 .
1 mm to over 1 meter in length Cell Body Axon terminals Myelin sheaths Axon Dendrites 1 mm to over 1 meter in length Copyright © 2010 Ryan P. Murphy
1 mm to over 1 meter in length Cell Body Axon terminals Myelin sheaths Axon Dendrites 1 mm to over 1 meter in length Copyright © 2010 Ryan P. Murphy
F F F Another Axon Cell Body Axon terminals Neurotransmitters sent to receptors F Myelin sheaths Axon Dendrites F 1 mm to over 1 meter in length
F orm F F Another Axon Cell Body Axon terminals Neurotransmitters sent to receptors F Myelin sheaths Axon Dendrites F 1 mm to over 1 meter in length
F orm F ollows F Another Axon Cell Body Axon terminals Neurotransmitters sent to receptors F ollows Myelin sheaths Axon Dendrites F 1 mm to over 1 meter in length
F orm F ollows F unction Another Axon Cell Body Axon terminals Neurotransmitters sent to receptors F ollows Myelin sheaths Axon Dendrites F unction 1 mm to over 1 meter in length Copyright © 2010 Ryan P. Murphy
Fingers are dendrites
Fingers are dendrites Hand is cell body
Fingers are dendrites Hand is cell body Arm is axon
“He’ll need a finely tuned nervous system to hit that shot.” Fingers are dendrites “He’ll need a finely tuned nervous system to hit that shot.” Hand is cell body Arm is axon
Fingers are dendrites Hand is cell body Arm is axon
Activity! Simulation of a neuron / Saltatory conduction. Whole class is one neuron (myelinated axons) Students stand at arms length from each other and form a winding line through classroom. Teacher says “go” to start, and first student gently slaps hand on person next to them. That person gently slaps the hand on the person next to them and so on down the axon. Last person in line should toss an object into the air representing the signal going to another neuron. Teacher will time you. Copyright © 2010 Ryan P. Murphy
Go!
Down line until last person
The Central Nervous System: Brain and Spinal Cord Processes information. Brain-body’s central command organ Spinal Cord-allows your brain to communicate with the rest of your body. Pg. 60
The Central Nervous System: Brain and Spinal Cord Control center of the body. Copyright © 2010 Ryan P. Murphy
Peripheral Nervous System: Network of nerves throughout body. The Central Nervous System: Brain and Spinal Cord Control center of the body. Peripheral Nervous System: Network of nerves throughout body. Copyright © 2010 Ryan P. Murphy
Peripheral Nervous System: Network of nerves throughout body. Connects your central nervous system to the rest of your body Pg. 60
All of the messages that are constantly being sent in your body are interpreted in the central nervous system. Copyright © 2010 Ryan P. Murphy
The Brain: An organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity. Copyright © 2010 Ryan P. Murphy
The brain is well protected by the skull. The brain is also covered in three layers of connective tissue which nourish and protect. Copyright © 2010 Ryan P. Murphy
F F F The brain is well protected by the skull. The brain is also covered in three layers of connective tissue which nourish and protect. F F F Copyright © 2010 Ryan P. Murphy
F orm F F The brain is well protected by the skull. The brain is also covered in three layers of connective tissue which nourish and protect. F orm F F Copyright © 2010 Ryan P. Murphy
F orm F ollows F The brain is well protected by the skull. The brain is also covered in three layers of connective tissue which nourish and protect. F orm F ollows F Copyright © 2010 Ryan P. Murphy
F orm F ollows F unction The brain is well protected by the skull. The brain is also covered in three layers of connective tissue which nourish and protect. F orm F ollows F unction Copyright © 2010 Ryan P. Murphy
Note how final spinal column is flexible. 31 segments and 33 bones 7 cervical vertebrae. 12 thoracic. 5 lumbar. 5 sacral 4 coccygeal Copyright © 2010 Ryan P. Murphy
The curves of your spine are important because they allow the spine to support more weight than if it were straight.
The curves of your spine are important because they allow the spine to support more weight than if it were straight. Also allows for compression.
Your vertebrae protect your spinal cord but are not Copyright © 2010 Ryan P. Murphy
Your vertebrae protect your spinal cord but are not indes t r u c t i b l e. Copyright © 2010 Ryan P. Murphy
Image of cracked spinal column and severed spinal cord.
Paralysis: Inability to move or function; total stoppage or severe impairment of activity
Again! Please wear your seatbelt. Copyright © 2010 Ryan P. Murphy Copyright © 2010 Ryan P. Murphy
Again! Please wear your seatbelt. Besides possibly saving you from TBI (Traumatic Brain Injury).
Again! Please wear your seatbelt. Besides possibly saving you from TBI (Traumatic Brain Injury). Copyright © 2010 Ryan P. Murphy
Again! Please wear your seatbelt. Besides possibly saving you from TBI (Traumatic Brain Injury). It can also possibly save you from serious and life altering spinal cord injury. Copyright © 2010 Ryan P. Murphy
When you bang the back of you head you often see stars. These stars are the firing of neurons, which is interpreted by the brain's visual cortex as quick flashes of light. Copyright © 2010 Ryan P. Murphy
The Endocrine System Copyright © 2010 Ryan P. Murphy
The endocrine system is a system that controls body functions and helps maintain homeostasis by using hormones. Pg. 66
Whistle!
Take 1 minute to return to a normal state.
The loud whistle and visuals that just scared you even more is a great example of the nervous system and the endocrine system. Copyright © 2010 Ryan P. Murphy
The loud whistle and visuals that just scared you even more is a great example of the nervous system and the endocrine system. The nervous system relayed the loud noise to your brain through neurons. Copyright © 2010 Ryan P. Murphy
The loud whistle and visuals that just scared you even more is a great example of the nervous system and the endocrine system. The nervous system relayed the loud noise to your brain through neurons. Your endocrine system just flooded your bloodstream with chemicals to put you on high alert. Copyright © 2010 Ryan P. Murphy
These chemicals told your body to speed up your heart rate, which has an influence on your breathing. Copyright © 2010 Ryan P. Murphy
These chemicals told your body to speed up your heart rate, which has an influence on your breathing. This built-in flee response is great for survival. Copyright © 2010 Ryan P. Murphy
These chemicals told your body to speed up your heart rate, which has an influence on your breathing. This built-in flee response is great for survival. Copyright © 2010 Ryan P. Murphy
Nervous System and Endocrine System These chemicals told your body to speed up your heart rate, which has an influence on your breathing. This built-in flee response is great for survival. Nervous System and Endocrine System Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Nervous system sends electrochemical signals. Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Nervous system sends electrochemical signals. The endocrine sends chemical messages in blood. Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Nervous system sends electrochemical signals. The endocrine sends chemical messages in blood. Copyright © 2010 Ryan P. Murphy
Nervous and Endocrine both regulate the body. Nervous system sends electrochemical signals. The endocrine sends chemical messages in blood. Copyright © 2010 Ryan P. Murphy
Nervous System, Endocrine System, Circulatory System Nervous and Endocrine both regulate the body. Nervous system sends electrochemical signals. The endocrine sends chemical messages in blood. Nervous System, Endocrine System, Circulatory System Copyright © 2010 Ryan P. Murphy
No more whistles today
Question: What do these do? Copyright © 2010 Ryan P. Murphy
Question: What do these do? Copyright © 2010 Ryan P. Murphy
Gland: A cell, a group of cells, or an organ that produces a special chemical in the body. Pg. 66
Gland: A cell, a group of cells, or an organ that produces a secretion for use elsewhere in the body. Copyright © 2010 Ryan P. Murphy
Hormones released into the circulatory system (bloodstream) travel to the whole body. Copyright © 2010 Ryan P. Murphy
Hormones released into the circulatory system (bloodstream) travel to the whole body. Remember: The network is over 100,000 km long.
Hormone: A chemical messenger made on one cell or tissue that causes a change in another cell or tissue in a different part of the body. Produced by the endocrine glands Travel through the bloodstream Pg. 66
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
“I hope he can digest all that food.” Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More “I hope he can digest all that food.” Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Let’s see if looking at some food stimulates our hunger and salivary glands for 5 slides.
Let’s see if looking at some food stimulates our hunger and salivary glands for 5 slides. Melted chocolate
Melted chocolate Crispy edge Let’s see if looking at some food stimulates our hunger and salivary glands for 5 slides. Melted chocolate Crispy edge
Too bad we can’t smell fresh baked cookies right now. Let’s see if looking at some food stimulates our hunger and salivary glands for 5 slides. Melted chocolate Too bad we can’t smell fresh baked cookies right now. Crispy edge
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Some activities in the body… Growth Sexual development Reproductive cycle Digestion Sleep Hair growth Hunger Blood Production Much More Copyright © 2010 Ryan P. Murphy
Hormones can speed up, slow down, turn-on, and turn-off activities in your body
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Dopamine plays a major role in the brain system that is responsible for reward-driven learning.
Dopamine plays a major role in the brain system that is responsible for reward-driven learning. A variety of highly addictive drugs, including stimulants such as cocaine and methamphetamine, act directly on the dopamine system
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Regulates sleep and wake patterns Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Regulates sleep and wake patterns Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Copyright © 2010 Ryan P. Murphy
Some important hormones Insulin Testosterone Estrogen Adrenaline epinephrine Dopamine Melatonin Thyroxine Consumption of oxygen and thus the metabolism of all cells and tissues in the body. Copyright © 2010 Ryan P. Murphy
Hormones also aid in maintaining a homeostasis. When your body becomes hot, chemical signals trigger you to sweat and thus cool down. Copyright © 2010 Ryan P. Murphy
Hormones also aid in maintaining a homeostasis. When your body becomes hot, chemical signals trigger you to sweat and thus cool down. Copyright © 2010 Ryan P. Murphy