1. Nervous system and Homeostasis
By: Pragna Vanga, Vivian Gao, and Nidhi Reddy

2. See what you know
1. What is homeostasis a. The process in which internal condition are kept in a tolerable range b. When internal temperatures are left high c. When body responds to internal environment 2.Which of the following is an example of homeostasis? a. sweating b. Diabetes c. Crying 3.What is the job of the nervous system? a. To send messages to and from the brain and spinal cord to and from the body. b. To break down food to be used by the body. c. To remove wastes from the body.

3. Nervous system and Homeostasis
Objectives:
Students will identify and/or describe the general functions of the nervous system of the human body
Students will identify and/or describe how the nervous system and other systems of the human body interact to maintain homeostasis
Essential Question:
How does the nervous system work allow the body to maintain homeostasis?
Higher Order Questions:
How do your sense organs work with your brain to help the nervous system maintain homeostasis/
Why is a helmet a suggested piece of safety equipment when riding your bicycle or skateboard?
Unit 5: Human body systems
Lesson D: Nervous system and homeostasis
Lesson Length/Duration: 2 days
Benchmark: SC.6.L.14.5
Vocabulary:
Brain- an organ of soft nervous tissue contained in the skull, functioning as the coordinating center of sensation and nervous activity.
Nervous System- the network of nerve cells and fibers that transmits nerve impulses between parts of the body.
Sensory Organs- The sensory nervous system is a part of the nervous system responsible for processing sensory information, consisting of sensory receptors, neural pathways, and parts of the brain involved in sensory perception.

4. The Nervous system
The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts. The brain and spinal cord form the control center known as the central nervous system (CNS), where information is evaluated and decisions made. The sensory nerves and sense organs of the peripheral nervous system (PNS) monitor conditions inside and outside of the body and send this information to the CNS. Nerves are cylindrical bundles of fibers that start at the brain and central cord and branch out to every other part of the body. Efferent nerves in the PNS carry signals from the control center to the muscles, glands, and organs to regulate their functions.

5. Homeostasis
Homeostasis refers to the ability of the body or a cell to seek and maintain a condition of equilibrium or stability within its internal environment when dealing with external changes. It is involved in the maintenance of the constant internal environment which includes the function of kidney, liver, skin, etc. In humans, homeostasis happens when the body regulates body temperature in an effort to maintain an internal temperature around 98.6 degrees Fahrenheit. For example, we sweat to cool off during the hot summer days, and we shiver to produce heat during the cold winter season.

6. What did you learn?
1. What does the PNS do? a. Sends information to the CNS b. Controls the body c. Makes nerves 2. What are sensory organs? a. Helps the brain b. a part of the nervous system responsible for processing sensory information c. Tells your nerves what to do 3. What is the internal body temperature your body needs to maintain? a Celsius b Fahrenheit c Fahrenheit