Unit 3 Lesson 3 How Do Cells Work Together? Copyright © Houghton Mifflin Harcourt Publishing Company 1
Describe the relationship between organs, organ systems and organisms. Unit 3 Lesson 3 How Do Cells Work Together? Objectives: Describe the relationship between organs, organ systems and organisms. Describe nervous system structures and their functions. Explain how the parts of the integumentary system help it function. Vocabulary: Tissue Organ system Organ Skin Brain Copyright © Houghton Mifflin Harcourt Publishing Company 2
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Cells are organized to work together so the body functions smoothly. Copyright © Houghton Mifflin Harcourt Publishing Company 3
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Tissue is made up of cells of the same type that work together to do a certain job. The body has four different types of tissues: muscle, connective, nerve, and epithelial. Copyright © Houghton Mifflin Harcourt Publishing Company 4
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Copyright © Houghton Mifflin Harcourt Publishing Company 5
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Copyright © Houghton Mifflin Harcourt Publishing Company 6
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized An organ is made up of several tissues that work together to do a certain job. Copyright © Houghton Mifflin Harcourt Publishing Company 7
How Cells Are Organized Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Organs that work together to do a job for the body make up an organ system. Copyright © Houghton Mifflin Harcourt Publishing Company 8
How Cells Are Organized Exit Slip Q2 in Active reading sheet Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Exit Slip Q2 in Active reading sheet Copyright © Houghton Mifflin Harcourt Publishing Company 9
How Cells Are Organized Homework Q3 in Active reading sheet Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Homework Q3 in Active reading sheet Copyright © Houghton Mifflin Harcourt Publishing Company 10
How Cells Are Organized Homework Q3 in Brain check sheet Unit 3 Lesson 3 How Do Cells Work Together? How Cells Are Organized Homework Q3 in Brain check sheet Copyright © Houghton Mifflin Harcourt Publishing Company 11
The Information Highway Warm up Q1 in Active reading sheet Unit 3 Lesson 3 How Do Cells Work Together? The Information Highway Warm up Q1 in Active reading sheet Copyright © Houghton Mifflin Harcourt Publishing Company 12
The Information Highway Unit 3 Lesson 3 How Do Cells Work Together? The Information Highway Sensing your surroundings and communicating information are the jobs of your nervous system. Copyright © Houghton Mifflin Harcourt Publishing Company 13
The Information Highway Unit 3 Lesson 3 How Do Cells Work Together? The Information Highway The nervous system is made of tiny structures called nerve cells. Chains of long nerve cells make up nerves. Nerves carry information to and from the brain, which processes information. The spinal cord, a rope-like bundle of nerve tissue, is the main pathway for information travelling to and from the brain. Copyright © Houghton Mifflin Harcourt Publishing Company 14
The Information Highway Unit 3 Lesson 3 How Do Cells Work Together? The Information Highway Exit Slip Q4 in Active reading sheet Word bank Nerves Brain Spinal cord Eyes Copyright © Houghton Mifflin Harcourt Publishing Company 15
Senses Senses are your body’s way of gathering information. Unit 3 Lesson 3 How Do Cells Work Together? Senses Senses are your body’s way of gathering information. Senses include sight, hearing, smell, touch, and taste. Copyright © Houghton Mifflin Harcourt Publishing Company 16
Unit 3 Lesson 3 How Do Cells Work Together? Sight and Smell Sight The iris is the part of the eye that gives your eye color. Light enters the eye through the pupil. The retina at the back of the eye contains nerve cells that detect light. These nerve cells send signals to the brain. Copyright © Houghton Mifflin Harcourt Publishing Company 17
Sight and Smell Exit Slip Q5 in Active reading sheet Word bank Light Unit 3 Lesson 3 How Do Cells Work Together? Sight and Smell Exit Slip Q5 in Active reading sheet Word bank Light Retina Pupil Iris lens Copyright © Houghton Mifflin Harcourt Publishing Company 18
Taste Taste buds on the tongue sense chemicals in food. Unit 3 Lesson 3 How Do Cells Work Together? Taste Taste buds on the tongue sense chemicals in food. Taste buds are attached to nerves that send messages to the brain. The brain interprets this information as taste. Copyright © Houghton Mifflin Harcourt Publishing Company 19
Hearing and Taste Exit Slip Q8 in Active reading sheet Word bank Unit 3 Lesson 3 How Do Cells Work Together? Hearing and Taste Exit Slip Q8 in Active reading sheet Word bank Taste buds lips chemicals Copyright © Houghton Mifflin Harcourt Publishing Company 20
Unit 3 Lesson 3 How Do Cells Work Together? Sight and Smell Smell Inside the nose, tiny structures sense chemicals in the air. These structures are attached to nerve cells in the olfactory bulb that send messages to the brain. Copyright © Houghton Mifflin Harcourt Publishing Company 21
Brain – spinal cord – chemicals – olfactory bulb Unit 3 Lesson 3 How Do Cells Work Together? Sight and Smell Exit Slip Q6 in Active reading sheet Word bank Brain – spinal cord – chemicals – olfactory bulb Copyright © Houghton Mifflin Harcourt Publishing Company 22
Hearing and Taste Hearing Unit 3 Lesson 3 How Do Cells Work Together? The outer ear funnels sound into the middle ear causing the eardrum to vibrate. Tiny bones ( hammer, anvil, and stirrup) pass vibrations to the inner ear where a fluid-filled structure called the cochlea passes vibrations to tiny hairs on the nerves. These nerves send messages about vibrations to the brain and you hear. Copyright © Houghton Mifflin Harcourt Publishing Company 23
Hearing and Taste Exit Slip Q7 in Active reading sheet Word bank Unit 3 Lesson 3 How Do Cells Work Together? Hearing and Taste Exit Slip Q7 in Active reading sheet Word bank Outer ear Eardrum Cochlea Copyright © Houghton Mifflin Harcourt Publishing Company 24
The Skin You’re In Skin is a protective layer that covers the body. Unit 3 Lesson 3 How Do Cells Work Together? The Skin You’re In Skin is a protective layer that covers the body. Skin, fingernails, toenails, and hair are part of the integumentary system. The integumentary system protects the inside of the body. Skin keeps germs out of the body and water in the body. When you get too hot, sweat on the skin cools the body. When you get too cold, hair keeps your head warm. Hair also protects your skin. Copyright © Houghton Mifflin Harcourt Publishing Company 25
The Skin You’re In Unit 3 Lesson 3 How Do Cells Work Together? 26 Copyright © Houghton Mifflin Harcourt Publishing Company 26
The Skin You’re In Identify in the image below: Epidermis Dermis Unit 3 Lesson 3 How Do Cells Work Together? The Skin You’re In Identify in the image below: Epidermis Dermis Nerve endings Hair follicles Copyright © Houghton Mifflin Harcourt Publishing Company 27