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Body Systems Lesson 1. Circulatory, Respiratory and Nervous Systems BY: BRIANNA SHIELDS. DO NOW. 1. Name one human body system 2. What gas do humans take in? 3. What organ keeps your blood pumping?. GOAL.
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Body Systems Lesson 1 Circulatory, Respiratory and Nervous Systems BY: BRIANNA SHIELDS
DO NOW • 1. Name one human body system • 2. What gas do humans take in? • 3. What organ keeps your blood pumping?
GOAL • To understand how the circulatory, respiratory and nervous systems function together to maintain homeostasis in the body.
GOAL Oxygen + food = energy (for cells) Respiratory System
Pathway of oxygen 1. Mouth/ nose 2. Trachea 3. Two bronchial tubes 4. Bronchi branches 5. Air sacs 6. Capillaries Blood picks up OXYGEN in capillaries of air sacs The waste CARBON DIOXIDE is dumped off Respiratory System
Goal Blood transports O2 & nutrients to cells & picks up wastes Circulatory System
Pathway of Blood Blood is pumped by the heart & carried by 3 types of blood vessels: Arteries- carry blood away from heart (carries CO2) Veins- carry blood to heart (carries O2) Capillaries- tiny, thin walls so O2 and CO2 can pass through Circulatory System
Pathway of blood Blood picks up oxygen at the lungs, and dumps carbon dioxideback off Circulatory System
Which two body systems are closely related to one another??? Respiratory and Circulatory they work together to provide oxygen for the cells and remove wastes (carbon dioxide) from the blood and body Systems Working Together
GOAL Receiving and sending messages Nervous System
Stimulus Response Pathway Made of nerve cells (NEURONS) 1. Senses send signals (stimulus) to brain 2. Brain decides how to respond (response) 3. Nerves carry response to proper part Nervous System
REVIEW • What is the goal of the respiratory system? • Lungs take in oxygen and combine it with nutrients for energy for cells. Also, get rid of carbon dioxide
REVIEW • What is the goal of the circulatory system? • Blood transports O2 & nutrients to cells & picks up wastes to get rid of them
REVIEW • How do the circulatory system and respiratory systems work together? • they work together to provide oxygen for the cells and remove wastes (carbon dioxide) from the blood and body
REVIEW • What is the goal of the nervous system? • receiving and sending messages
REVIEW • What is the major organ of the respiratory system? • Lungs
REVIEW • What is the major organ of the circulatory system? • Heart (which pumps blood)
REVIEW • What is the major organ of the nervous system? • Nerves/brain/spinal cord
WEBSITES • Heart and Brain Virtual Body • My Body for Kids: Brain/Nervous System • My Body for Kids: Heart/Circulatory System • Yucky Body Facts • Interactive Body Review Games • Innerbody.com
Write this assignment into your AGENDA • Body System Homework 1- due next class