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Nerve And Endocrine Systems PowerPoint Presentation

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Slide 1 - The Endocrine System Communication Chemical Main Function: It releases hormones into the blood to signal other cells to behave in certain ways. It is a slow but widespread form of communication.
Slide 2 - Endocrine glands Release hormones into the bloodstream. Hormones are chemicals released in one part of the body that travel through the bloodstream and affect the activities of cells in other parts of the body. Consists of: The Endocrine System
Slide 3 - Pituitary Gland Function: It secretes nine hormones that directly regulate many body functions and controls functions of other glands. Disorders: To much growth hormones (GH) in early childhood can result in a condition called gigantism. To little GH can result in Pituitary Dwarfism. Robert Wadlow
Slide 4 - Thyroid Gland Function: plays a major role in regulation the body’s metabolism. Disorders: If the Thyroid Gland produces to much Thyroxin, it can cause a condition known as Hyperthyroidism. If to little thyroxin produces it is called Hypothyroidism.
Slide 5 - Pancreas Function: The Insulin and Glycogen in the Pancreas help to keep the level of glucose in the blood stable. Disorders: When the Pancreas fails to produce or properly use Insulin, it can cause a condition known as Diabetes Mellitus.
Slide 6 - Adrenal Gland Functions: -The adrenal glands release Adrenaline in the body that helps prepare for and deal with stress. -Also regulates kidney function.
Slide 7 - Ovaries Functions: Pair of reproductive organs found in women that produce eggs. Also secrete estrogen and progesterone, which control ovulation and menstruation.
Slide 8 - Testes Functions: Pair of reproductive glands that produces sperm. Also secrete Testosterone to give the body its masculine characteristics.
Slide 9 - Interaction of Glands The hypothalamus is located in the brain and controls the release of hormones from the pituitary gland. It is an important link between the endocrine and nervous systems. http://www.biocfarm.unibo.it/aunsnc/images/3D%20Objects/Hypothalamus.gif
Slide 10 - The Nervous System Communication Electrical
Slide 11 - Main Function: This communication system controls and coordinates functions throughout the body and responds to internal and external stimuli. The Nervous System Our nervous system allows us to feel pain.
Slide 12 - Consists of: brain, spinal cord, nerves and sense organs The Nervous System Sense Organs: Eyes, Skin, Ears, Nose & Tongue
Slide 13 - A nerve is an organ containing a bundle of nerve cells called neurons. Neurons carry electrical messages called impulses throughout the body. Picture shows hundreds of severed neuron axons The Nerve
Slide 14 - cell body Impulse in a Neuron
Slide 15 - Because neurons never touch, chemical signalers called neurotransmitters must travel through the space called synapse between two neurons. Neurotransmitters Synapse (gap) The message is transferred when RECEPTORS receive neurotrans-mitters. (pink spheres)
Slide 16 - Parts of a Neuron Cell body: contains nucleus & most of the cytoplasm Dendrites: projections that bring impulses into the neuron to the cell body. Axon: long projection that carries impulses away from cell body
Slide 17 - Sensory Neuron Interneuron Motor Neuron Types of Neurons Sensory Neuron Interneuron Motor Neuron Muscle Contracts Synapse Synapse Synapse
Slide 18 - Sensory Neuron carry impulses from sense organs to spinal cord & brain Fun Fact: Where can the largest cells in the world be found? The giraffe’s sensory and motor neurons! Some must bring impulses from the bottom of their legs to their spinal cord several meters away!!
Slide 19 - Interneuron processes impulses in brain and spinal cord - connect sensory and motor neurons
Slide 20 - Motor Neurons carry impulses from the brain & spinal cord to muscles & glands Axon End Axons branching out to muscle fibers
Slide 21 - Nerves work together with muscles for movement. An impulse begins when one neuron is stimulated by another neuron or by the sense organs. The impulse travels down the axons of Sensory neurons to the brain cells called Interneurons. The brain will then send an impulse through motor neurons to the necessary muscle or organs, telling it to contract. Communication with Neurons
Slide 22 - A reflex is an involuntary response that is processed in the spinal cord not the brain. Reflexes protect the body before the brain knows what is going on. Reflex Arc
Slide 23 - Central Nervous System Consists of: Brain and Spinal Cord
Slide 24 - Central Nervous System
Slide 25 - Consists of: Sensory division and Motor division -includes all sensory neurons, motor neurons, and sense organs Peripheral Nervous System
Slide 26 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.