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Nervous sytem
- 1. Name:_____________________ Date:________ Living Environment Rabbi Goldberg The Nervous System I. Human Regulation a. In humans and animals regulation _______________________ _____________________________________________________ b. There are some differences and some similarities between the two systems c. Similarities between the Endocrine and Nervous system i. __________________________________________ 1. Nervous system secretes – ___________________ Endocrine – __________________________ ii. BOTH PLAY A MAJOR ROLE IN HOMEOSTASIS d. Differences between the Endocrine and Nervous system i. Nervous system _______________________________ ii. Nerve response is _______________________________ II. Human Nervous system a. What is a neuron? i. ________________________________________________ _______________________________________________ ii. There are three types of neurons. 1. Sensory Neurons a. _____________________________________ ____________________________________ b. They are located near the sensory organs such as i. ________________________________
- 2. ii. ________________________________ iii. ________________________________ iv. ________________________ ________ 2. Interneuron a. Another type of neurons b. _____________________________________ _____________________________________ c. _____________________________________ _____________________________________ ____________________________________ 3. Motor Neurons a. Transmit impulses _____________________________________ ____________________________________ i. Effectors __________________________ b. These messages __________________ _________________________________( fire is hot pull hand back) b. So what are nerves? i. Nerves are groups ________________________________________________ ________________________________________________ _______________________________________________ 1. They can be a. motor neurons b. Sensory neurons c. Or mixed
- 3. ii. Nerves 1. Most nerves ___________________________ 2. This is for a. _________________________________ b. Make sure ________________________ _____________________________________ ____________________________________ 3. A neuron ___________________________________________ ___________________________________________ _________________________________________ a. Dendrites- ___________________________ _____________________________________ ____________________________________ b. Axon- _____________________________________ _____________________________________ ____________________________________ c. Cell body- ___________________________ iii. How does it work 1. Resting - no impulse, cell is polarized ( + on outside & - on inside) a. Sodium/Potassium pump in axon using ATP maintains this polarity b. impulses Stimulus excites Neurons c. Depolarization occurs ~ a nerve impulse d. Impulse moves in one direction c. Connection between Neurons i. Synapse: ____________________________________ _____________________________________________
- 4. ii. Neurotransmitter: ______________, such as acetylcholine, which, ________________________________________________ _______________________________________________ III. There are two parts to the Nervous System a. __________________________________ b. _____________________________________________ IV. Central Nervous System (CNS) a. There are two main parts to the CNS i. ________________________________ ii. _________________________________ b. Brain i. ________________________________________________ ________________________________________________ _______________________________________________ 1. Conscious activities 2. Intelligence 3. _________________________ 4. Language 5. Voluntary activity ii. Cerebellum: 1. __________________________________________ 2. ______________________________________ iii. Medulla Oblongata: 1. ___________________________________________ ___________________________________________ _________________________________________
- 5. c. Spinal Cord i. __________________________________ 1. Bones of the spinal column ii. Spinal cord ________________________________________________ ________________________________________________ iii. It is the center for ________________________________ iv. Does not require activity from the brain to give off a response 1. Reflex actions – ________________________ a. Ex blinking d. Peripheral Nervous system i. Is located ___________________________________ ii. It contains nerves that extend throughout the body 1. There are two parts to the PNS a. ________________ nervous system b. ________________ nervous system 2. Somatic Nervous system a. _____________________________________ ____________________________________ b. Examples i. run ii. Play 3. Autonomic nervous system
- 6. 4. Generally ________________________________ ________________________________ ______________________ V. Malfunctions of the nervous system a. Listed are some of the malfunctions of the nervous system i. __________________________________________ ii. Meningitis iii. _________________________________________ iv. Polio b. Cerebral Palsy (CP) i. A group of ________________________________________________ ________________________________________________ _______________________________________________ ii. Person still has ________________________________________________ ________________________________________________ ________________________________ c. Meningitis i. ________________________________________________ ________________________________________________ ________________________________________________ ______________ d. Stroke i. ________________________________________________ ________________________________________________ ________________________________________________ ii. May cause brain damage or death e. Polio
- 7. i. ______________________________________________ ii. Canbe prevented through immunization Shots