Nervous System Endocrine System Nervous System Endocrine System

3 types Neurons Types of Neurons Sensory Motor Interneurons

Sensory Neurons • INPUT From sensory organs to the brain and spinal cord Drawing

Motor Neurons • OUTPUT From the brain and spinal cord, to the muscles and

Interneurons • Interneurons carry information between other neurons only found in the brain and

The Reflex Works by bypassing the brain so you can react quicker. Sensory Neuron

The Nervous System: Sends messages quickly but they don’t last long. Broken into two

The Nervous System: It breaks down into two parts. Central nervous system Peripheral nervous

Sympathetic and parasympathetic divisions of the nervous system

Summary of autonomic differences Autonomic nervous system controls physiological arousal Sympathetic division (arousing) Pupils

Endocrine System Uses hormones that travel through the bloodstream. Takes longer to get there

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Nervous System & Endocrine System Nervous System: Endocrine System: • Types of Neurons • Parts of the Nervous System • Glands & Hormones of the Endocrine System

3 types Neurons Types of Neurons Sensory Motor Interneurons

Sensory Neurons • INPUT From sensory organs to the brain and spinal cord Drawing shows a somatic neuron Sensory Neuron Brain Spinal Cord

Motor Neurons • OUTPUT From the brain and spinal cord, to the muscles and glands Sensory Neuron Brain Spinal Cord Motor Neuron

Interneurons • Interneurons carry information between other neurons only found in the brain and spinal cord Sensory Neuron Brain Spinal Cord Motor Neuron

The Reflex Works by bypassing the brain so you can react quicker. Sensory Neuron Interneuron Motor Neuron

A Neural Chain

The Nervous System: Sends messages quickly but they don’t last long. Broken into two parts: • Central Nervous System (CNS) – • Peripheral Nervous System (PNS) –

The Nervous System: It breaks down into two parts. Central nervous system Peripheral nervous system

Sympathetic and parasympathetic divisions of the nervous system

Summary of autonomic differences Autonomic nervous system controls physiological arousal Sympathetic division (arousing) Pupils dilate Decreases Parasympathetic division (calming) EYES SALIVATION Pupils contract Increases Perspires SKIN Dries Increases RESPERATION Decreases Accelerates HEART Slows Inhibits DIGESTION Activates Secrete stress hormones ADRENAL GLANDS Decrease secretion of stress hormones

Endocrine System Uses hormones that travel through the bloodstream. Takes longer to get there but lasts a long time