T HE S ENSORY S YSTEM By: Colin, Haley, Connor, Crystal, Abby, and Derek.

Slides:



Advertisements
Similar presentations
Chapter 22 Human Senses.
Advertisements

5 senses.
Special Senses.
Lesson Overview 31.4 The Senses.
The General & Special Senses
What is the function of the Nervous System?. The nervous system is made of structures that control the actions and reactions of the body in response to.
Copyright Pearson Prentice Hall
Lesson Overview 31.4 The Senses.
Human Systems: Nervous System & Sense Organs
Unit 3 Lesson 3 How Do Cells Work Together?
The Senses.
 Hearing  Sight  Smell  Taste  Touch Three Sections: Inner, Middle and Outer.
The Body’s Alert System
What’s in the bag? Blind fold students or (take away other senses) and have them identify different objects. Explain that senses help us receive information.
Sight Hearing Taste Smell Touching
C ONTROL AND C OORDINATION Chapter 5 Lesson 2. O BJECTIVES List the sensory receptors in each sense organ. Explain what type of stimulus each sense organ.
Your Senses A loud “boom!” is heard across the street. You turn quickly and duck slightly. Your senses are in action! The unexpected noise produces impulses.
Ch 35 Sensors AP Lecture. Sensory Receptor Cells Sensors or receptors that convert sensory stimuli into change in membrane potential. This causes an action.
The Senses. Your five senses play in important role in your daily life. Every moment in your life, you use at least one of your five senses. You touch,
The Senses.
COORDINATION SYSTEM THE SENSES Ch.9/XI bil. Sensory system Sense organs or receptors are receptors, it functions to receive information These organs are.
The Senses. Sensory Receptors Sensory receptors = neurons that react directly to stimuli from the environment. – Light, sound, motion, chemicals, pressure.
Lesson 19 What are sense organs?.
The Nervous System Section 35-4: The Senses.
A.P. Biology Sense Organs.

The Retina Retina is a delicate tissue composed of two layers Sensory layer contains photoreceptors (rods and cones) that sense light Sensory layer consists.
The Senses (3) Anatomy and Physiology. The Senses  The body contains millions of neurons that react directly to stimuli from the environment, including.
DO NOW : List the 5 senses and an organ associated with each sense. Then list an object detected by each sense. (Ex. Ear and a bell) Objectives: 1.List.
CHAPTER 14 THE SENSES RECEPTORS RECEIVE INFORMATION AND SEND IT TO THE BRAIN FOR PROCESSING.
End Show Slide 1 of 49 Copyright Pearson Prentice Hall Biology.
Chapter 24 Regulation Sec Question? Look around you. What do you see? What sounds can you hear? Do you smell any odors? – Information about your.
The Human Senses. How does our body enable us to TASTE & SMELL? Sensory nerves associated with taste and smell are located in the mouth and nasal cavity.
The Nervous System Science Ms. Curd’s Class. The Five Senses 1. Sight 2. Hearing 3. Touch 4. Smell 5. Taste.
CHAPTER 13 THE SENSES RECEPTORS RECEIVE INFORMATION AND SEND IT TO THE BRAIN FOR PROCESSING.
The Senses Chapter 35.4.
Sensory Receptors. D.S.Q. 1. What is getting ready to happen to the foot in the picture? 2. What will most likely happen as soon as the feather rubs.
THE SENSES PGS Chapter 35 Section 4. Objectives _______________ the five types of sensory receptors ______________ the five sense organs Name.
The Five Senses By Astrit, Sam, Vicky, Nick, and Madison.
The Senses.
The Senses.
UNIT 7 1 The Special Senses. 2 The 5 senses are: smell, taste, vision, hearing and equilibrium Ophthalmology is science of the eye Otolaryngology is science.
The Ear, The Nose, and The Tongue.  Has external, middle, and inner ear  Functions to help hear and keep our balance and equilibrium  Receptors are.
Lesson Overview 31.4 The Senses.
The Senses EQ: How does our brain receive and interpret sensory information?
The Senses.
Ch.19 The Nervous System Section 3: The Senses. Section 3 Vision – Your eyes respond to the stimulus of light. They convert that stimulus into impulses.
Senses and Sensory Receptors. 5 major senses –Sight –Hearing –Taste –Smell –Touch Provide information from outside which stimulates the sensory nerves.
- SENSATION REFERS TO THE PROCESS OF SENSING OUR ENVIRONMENT THROUGH TOUCH, TASTE, SIGHT, SOUND, AND SMELL. THIS INFORMATION IS SENT TO OUR BRAINS IN RAW.
© 2009 The McGraw-Hill Companies, Inc. All rights reserved.
Process of Eyesight and Hearing
KEY CONCEPT The senses detect the internal and external environments.
Unit 4 OUR SENSES.
The Senses.
OUR EYES ARE THE ORGAN OF SIGHT
Senses A particular sensitivity to a distinct environmental change
SENSE ORGANS Structures that carry messages about your surroundings to the Central Nervous System Eyes, ears, nose, tongue, skin.
OUR EYES ARE THE ORGAN OF SIGHT
The Senses of the Nervous System
The Senses.
The Senses.
The Senses.
By: Camila F. Gil & Desire Rivera
The Senses Ch. 18 Sect. 2.
The Senses.
The Senses.
Vision and Hearing.
The Senses.
35–4 The Senses Objectives: Name the five types of sensory receptors.
The Senses.
Presentation transcript:

T HE S ENSORY S YSTEM By: Colin, Haley, Connor, Crystal, Abby, and Derek

V OCABULARY Retina- A layer of light-sensitive cells in the back of the eye Rods-photoreceptors that detect very dim light Cones- photoreceptors that detect bright light and help you see colors Iris- the colored part of the eye

V OCAB CONT. Lens- a curved, transparent object that forms an image by refracting light Pupil- a hole in the eye which light enters through Cochlea- an organ in the ear that converts sound waves into electrical impulses Taste buds- Receptors for tasting

N OSE The nose is one of the five senses. The nose helps you to smell good and bad smells. Smell and taste are closely related. The receptors for smelling are olfactory cells. When you inhale through your nose it filters and warms the air. The receptors for smell are located on olfactory cells in the upper part of your nasal cavity.

T HE E AR Has the three smallest bones in the body Made up of three parts Outer (Pinna)- Channels sound into middle ear Middle- Eardrum, the 3 bones Inner- Cochlea, waves create vibrations there Cochlea has two purposes 1) Keeps you balanced 2) Converts waves into vibrations The Auditory Nerve sends the vibrations to the brain. The Eardrum vibrates and makes the bones vibrate.

T HE E AR The ear is composed of many parts that if we were to loose any of the following parts you would not be able to hear as well as you could. The parts of the ear are: auricle, outer ear canal, eardrum, malleus, incus, stirrup, cochlea, and the auditory nerve. Outer ear is composed of the auricle and outer ear canal Middle ear is composed of the eardrum, malleus, incus, and stirrup Inner ear is composed of the cochlea and the auditory nerve The cochlea and the auditory nerve could be the most important parts of the ear. The cochlea converts sound waves into electrical impulses and sends them to the auditory nerve. The auditory nerve then sends it to the brain, and the brain interprets them. The malleus, incus, and stirrup are the smallest bone in the body which is incredible for the job they perform A very important part of the ear also is that the ear helps keep the body balanced When you spin around in circles the reason why you get dizzy is because the fluid in the cochlea is moving around making everything spin

T HEEYE T HE EYE The second most complex organ. The eye can see a candle up to 14 miles in the right conditions. There are 120,000,000 rods for night vision. When there is an object coming toward you, your eye will automatically blink so it doesn’t damage your eye. The tears are meant to clean the eye, and is very helpful to heal cuts or scratches in your eye. There are 2,000,000 working parts in the eye. The eye can process 36,000 bit of information every hour. The human eye weighs approximately 28 grams. Sight is the ability of the brain and the eye to work together to detect light waves within the visible range which is sight. The second most complex organ. The eye can see a candle up to 14 miles in the right conditions. There are 120,000,000 rods for night vision. When there is an object coming toward you, your eye will automatically blink so it doesn’t damage your eye. The tears are meant to clean the eye, and is very helpful to heal cuts or scratches in your eye. There are 2,000,000 working parts in the eye. The eye can process 36,000 bit of information every hour. The human eye weighs approximately 28 grams. Sight is the ability of the brain and the eye to work together to detect light waves within the visible range which is sight.

T HE E YE The light enters the eye through the pupil. It passes through the lens. The lens changes the shape and the direction. Light energy produces changes in photoreceptors that trigger nerve impulses. The image “hits” the retina and sent to the optic nerve. From the optic nerve the image is sent to the brain.

The tongue is a very interesting organ It is part of the sensory system On the tongue, there are thousands of tiny little bumps called papillae. Embedded in the papillae, are the very tiny taste buds. The taste buds are the things that sense the taste of everything you eat or drink. After the taste buds receive the taste of something, it sends a signal through several nerve cords, and then proceeds to the brain, all in a fraction of a second. All instantaneously, that is the sense of taste Sensory receptors in your tongue detect dissolved chemicals.

F UN F ACTS A elephant nose can smell water three miles away. Insects have the most powerful sense of taste. The carrot only seems orange because they reflect only orange light. Girls usually have more taste buds than boys. Your eyes are the same size from birth, but your nose and ears are always growing. You can recognize about 10,000 different odors. Your thumb is the same length as your nose.