Chapter 1. FeelsmellTasteSeeHear What are senses?

Slides:

Advertisements

Similar presentations

The Integumentary System. Integumentary System Hair Skin Nails.

Advertisements

 THE ORGANIZATION OF CELLS 1.CELLS: BASIC UNIT OF ALL LIFE 2.TISSUES: GROUPS OF SIMILAR CELLS THAT WORK TOGETHER MUSCLE TISSUE: ALLOWS MOTION, CAN ONLY.

The Nervous System Noadswood Science, 2011.

Learning question: How do animals detect stimuli?

The Sensory Organs.  Your senses are means of detecting and interpreting stimuli of you external environment.  These are the sense of taste, sight,

Integumentary System By: Savannah Nash, Gatwech Both, and Zoe Hixenbaugh.

Skin & Temperature Control

Nervous system and Integumentary System (skin)

Fast Skin Facts The average adult has 21 square feet of skin (2 sq m) which weighs 7lb (3.2 kg) and has approximately 300 million skin cells. The average.

THE INTEGUMENTARY SYSTEM Objectives: Identify and describe the functions and structures of the integumentary system Identify the medical specialists associated.

THE INTEGUMENTARY SYSTEM CHAPTER 5. THE INTEGUMENTARY SYSTEM Largest organ in the body 10% of body weight Skin and associated structures.

Nervous System Responsible for coordinating the many activities performed inside and outside the body Every square inch of the human body is supplied with.

The Skin. Skin Made of three layers – epidermis – Dermis – hypodermis.

The Skin  The skin is the largest organ in the body.  It is composed of two layers:  The epidermis on the outside.  The dermis is underneath.  The.

Skin- Largest organ in the body Two layers of skin.

What’s Your Function? Looking at the skin!. Epidermis Outermost layer of skin Made up of 2 parts –Exterior --- Consists of layers of dead cells.

Integumentary System  Composed of skin, hair, sweat glands, and nails  The name is derived from the Latin integumentum, which means “a covering.” 

Chapter 12  Touch  Taste  Vision  Hearing  Smell.

Skin Jeopardy Layers of SkinGlandsComponents of Skin Wound HealingRegions of the skin

33.3 Integumentary System KEY CONCEPT The integumentary system has many tissues that protect the body.

What is the largest organ in the human body? The brain The liver The skin.

Touch The skin is the receptor organ for tactile (touch), heat and pain sensations. There are 3 layers.

What you will learn today . . .

The sense of touch.

Integumentary System. A system composed of multiple types of tissue: –Epithelial tissue –Connective tissue –Muscle tissue –Nervous tissue Also includes,

RECEPTORS & EFFECTORS RECEPTORS Receptors are groups of specialized cells. They can detect changes in the environment, which are called stimuli, and turn.

Integumentary System “The PROTECTOR!!!”. Functions of the Integumentary System:  Protects internal organs/systems  Protects against infectious organisms.

Chapter 6 Wordbytes 1. Cut- = skin 2. Derm- = skin 3. Epi- = upon 4. Follic- = small bag 5. Hypo- = under/below 6. Kerat- = horn 7. Melan- = black 8. Pil-

Senses in the Skin.

Here They Are: Your Body Systems (Part 1)

Homeroom Read or complete any missing assignments!

Skin plays several important roles for our bodies. 1.Skin helps to ________ body temperature. 2.Skin ________ inner tissue. 3. Skin produces vitamin ___.

Muscular System. Hair Pore Epidermis Dermis Subcutaneous Erector Muscle Hair FollicleSweat Gland Fat Cells Capillary Nerve Ending.

What is the largest organ in the human body? The brain The liver The skin.

Last skin powerpoint. Skin glands: Two kinds 1.Sebaceous (oil) 2.Sweat.

Coordination and Response in Plants and Animals Receptors, Effectors and the Central Nervous System.

THE NERVOUS SYSTEM. Senses  In order for humans to survive, their bodies must constantly monitor the environment  Sense organs interact with the nervous.

5 The Integumentary System. An Introduction to the Integumentary System The Integument – Is the largest system of the body 16% of body weight 1.5 to 2.

Skin Receptors. Body Receptors  Sensory Receptors- nerves and cells that are in your eyes and ears.  External Receptors – outside the body, pain, heat,

THE INTEGUMENTARY SYSTEM THE SKIN, HAIR, AND NAILS.

Integumentary System (Skin). What Can You Observe About Skin? Look at the skin on your arms and hands. What does your skin do for your body?

Unit 3: Integumentary System A&P Chapter 5

Integumentary System.

Unit 3: Integumentary System A&P Chapter 5

Sense of *touch*.

Assignment # Nervous Regulation and Reflex Arcs

Skin Receptors.

What do you know about the human body?

What do these people have in common? Porphyria.

Integumentary System (Ch. 6)

Integumentary System The body’s shield.

Integumentary System (Ch. 6)

The Skin Ch 14 Sect 3.

The Skin (touch, heat, pain sensors)

Chapter 14: Bones, Muscles, and Skin Section 4: The Skin

The Integumentary System “The Skin” - Anatomy

Skin The skin completely covers the body and is continuous with the membranes lining the body orifices: • protects the underlying structures from injury.

INTEGUMENTARY SYSTEM THE DERMIS

Control of Muscle Contraction

The nervous system.

The Integumentary System

Unit 3 Lesson 3 How Do Cells Work Together?

Chapter 14 Section 4: Skin Key concepts: What are the functions and the structures of skin? What habits can help keep your skin healthy? Key terms: epidermis,

Function 2: Support, move, and cover itself

5 Main Sensory Organs S.O Skin Nose Tongue Ear Eye.

Presentation transcript:

Chapter 1

FeelsmellTasteSeeHear What are senses?

1.1 Sensory Organs To detect the surroundings changes. Sensory organ very sensitive to stimuli. Sensory organstimulus eyelight EarSound NoseChemical vapour (smell) SkinTouch, pressure, pain, heat, cold tongueChemical substances (taste)

!!Stimulus detected!! Stimulus Receptors in sensory organs Nerve impulse nerves Brain Effectors( muscles, glands) Response Nerve impulse nerves Nerve impulse

1.2 Sense of touch

Heat receptorsPain receptors Cold receptors Touch receptors Pressure receptors Epidermis Dermis

touch receptors- help us feel slight touch pain receptors - help us feel pain heat receptors - help us feel heat cold receptors - help us feel cold

Epidermis - The epidermis is the outer layer of the skin, the epidermis itself is divided into three layers - The outer most layer of the epidermis is the dead cell The epidermis is a tough and water resistance layer that limits water loss - Epidermis also protects the sensitive cells under it and prevents the entry of germs into your body Dermis - The dermis is the inner layer of your skin -There are glands, receptors and blood vessel in the dermis - There are two glands in the dermis, which are sweat gland and sebaceous gland - There are five receptors in the dermis, which are pain, pressure, heat, cold and touch receptors.

Skin is the sensory organ of touch Respond to heat, cold, pressure, touch and pain stimuli. The sensitivity of skin depends on the a. thickness of the epidermis. -The thinner the epidermis, the more sensitive the skin. b.number of receptor present. -More receptors more sensitive. Skin is the sensory organ of touch Respond to heat, cold, pressure, touch and pain stimuli. The sensitivity of skin depends on the a. thickness of the epidermis. -The thinner the epidermis, the more sensitive the skin. b.number of receptor present. -More receptors more sensitive.

Sensitive to touchNot sensitive to touch The parts of the body that have thin epidermis and many receptors sensitive to touch are,  Lips  Fingertips  Area behind the ears  Armpit  The back of the neck The part of the body, Elbow Knee Palm of the hand and sole of the foot Buttocks Like being inject? Upper arm/buttock

Explained the situation given by showing the pathway from stimulus, receptor involve and the response 1.Touch hot kettle. 2.Accidentally cut your hand. 3.Walk with barefoot on rough floor.

1.3 Sense of smell