Principles of Biology By Frank H. Osborne, Ph. D. Lab 8 - The Nervous System.

Slides:

Advertisements

Similar presentations

The Nervous System Chapter Five.

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.

Senses and Perception Lab 17.

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.

Human Systems: Nervous System & Sense Organs

Your Nervous System Peripheral Nervous System. Engage As a class visit IQ Test Labs at As a class visit IQ Test.

Class Notes for the Nervous System - Section 1. Two Systems Within a System Peripheral Nervous System: PNS All the parts of the nervous system, except.

Hearing Review The sense of hearing is also known as the AUDITORY system. Sound travels in waves and aspects of these waves determine the sound we hear.

 Sensory Receptors - detect environmental changes and trigger nerve impulses  Somatic Senses  Touch, pressure, temperature, pain  Special Senses 

The Body’s Alert System

The Sensory Systems Part of Chapter 41 and 42.

It has two basic functions: gathers and interprets information, and responses to it The nervous system is made of: The brainThe spinal cord The nervesThe.

A system that controls all of the activities of the body. The nervous system is made of: The brainThe spinal cord The nervesThe senses.

Pages 546 – 564 Date Chapter 20: The Nervous and Endocrine Systems.

NERVOUS SYSTEM Human physiology. THE BODY’S CONTROL CENTER  The brain is the control center of the human body. It is made up of billions of nerve cells,

Domain 2 Part 3 Chapter 8 Sensation. Sensation v. Perception Sensation: activation of our senses (eyes, ears, etc.) Perception: the process of understanding.

$100 $400 $300$200$400 $200$100$100$400 $200$200$500 $500$300 $200$500 $100$300$100$300 $500$300$400$400$500.

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?.

Unit 10 Chapter 36 The Nervous System

The Nervous System Section 35-4: The Senses.

THE BRAIN AND THE SENSES SECTIONS 35-2 and What were the divisions of the nervous system? Central Nervous System a. Brain and Spinal Cord b. Interprets.

A system that controls all of the activities of the body. The nervous system is made of: The brainThe spinal cord The nervesThe senses.

Sensation and Perception –Hearing & other senses The Biological Basis of Behavior: Unit III.

Nervous System. Functions of the Nervous System 1.Receives information from outside and inside the body 2. Responds to the information 3. Helps the body.

A.P. Biology Sense Organs.

Chapter 35 Nervous system Unit 10 :. Tissue Types: Epithelial Connective Muscle Nervous.

Your Nervous System Peripheral Nervous System. Explain which consists of is divided into that make up which is divided into Section 35-3 The Nervous System.

The Senses (3) Anatomy and Physiology. The Senses  The body contains millions of neurons that react directly to stimuli from the environment, including.

Nervous System Chapter 20 Section 1. You will learn  To describe how the body’s senses help monitor the environment.  To explain how the sensory organs.

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.

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.

Nervous System Brain Spinal Cord Nerves Neurons. Communication between cells through nerve signals.

Chapter 13 Senses.

Nervous System Thinking Questions. Explain how the sense of smell relates to the sense of taste in identifying a food such as chocolate.

Lesson Overview 31.4 The Senses.

CHAPTER 21 THE NERVOUS SYSTEM and SENSES Homeostasis-maintaining a constant internal balance; responding to stimuli Stimuli- an external or internal.

The Other Senses. Taste: Gustatory System Physical stimuli→ chemical substances that are soluble Receptors→ taste cells found in the taste buds that line.

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.

The Auditory System, Olfaction, Gustation, and Somothesis.

DO NOW Using the handout you picked up Label the parts of the eye using the descriptions underneath as clues We will label the back as we go through the.

 Need for communication  Communication is required for coordination  Gather information  Process information  Respond accordingly.

Chapter 12: Section 1 How the Nervous System Works. By Ashley Hannah.

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

Other Senses. Taste Taste is a chemical sense. Receptor cells are located primarily on the tongue and in the mouth. Four different tastes: ◦ Salty, sweet,

Senses and Sensory Receptors. 5 major senses –Sight –Hearing –Taste –Smell –Touch Provide information from outside which stimulates the sensory nerves.

Chapter 21 Control and Coordination. Section 1- The Nervous System Homeostasis –The regulation of steady, life-maintaining conditions inside an organism,

Nervous System Chapter 20 Section 1. You will learn  To describe how the body’s senses help monitor the environment.  To explain how the sensory organs.

The Peripheral Nervous System Subtitle. The Spinal Cord ▪ Function: to relay information to and from the brain ▪ Description: white cable around 43cm.

Control and Coordination

KEY CONCEPT The senses detect the internal and external environments.

Sensation and Perception –Hearing & other senses

Brain Spinal Cord Nerves Neurons

Ch. 21 Control and Coordination

Nerves Neurones T R E C E L P E E L T O E R S L S P C R I E N D M E I A M N U G P U L M P I S E A S H S T S A N E D L L S T O A N G N N R E A E U R S O.

Aim: How Do Our Reflexes Function?

How do organisms receive and respond to information from their environment? Yesterday and today you worked with your partners on stations that tested your.

Sensation and Perception –Hearing & other senses

Hearing Our auditory sense.

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

Notes – Nervous System 1.

Section 3: Sensory Systems

Specialized Nerve Cells

35–4 The Senses Objectives: Name the five types of sensory receptors.

Presentation transcript:

Principles of Biology By Frank H. Osborne, Ph. D. Lab 8 - The Nervous System

Properties of the Sense Organs A. Sense organs receive stimuli from the outside world. B. A sense organ communicates with the central nervous system via a sensory neuron.

A. The eye 1. The eye has cells that respond to light intensity and color. 2. The optic nerve transmits impulses from the eye to the brain. 3. The brain interprets the impulses it receives from the eye.

B. The ear 1. Sound travels as a disturbance of the air molecules. 2. The eardrum vibrates when it is disturbed by the air. 3. Vibrations of the eardrum are transmitted mechanically to the cochlea. 4. Sensitive hair cells in the cochlea transmit the impulses to the brain via the otic nerve.

The ear 5. The brain decides which sounds are important. 6. The ear has semicircular canals that are used to sense balance.

The Sense Organs C. The skin 1. Touch receptors a. Touch receptors sense contact with outside things. b. Touch receptors are very close together in sensitive areas of the skin.

The Sense Organs 2. Thermal receptors a. Thermal receptors detect heat and cold. b. The heat receptors respond faster than do the cold receptors. 3. Pain receptors detect pain.

D. The nose 1. The olfactory receptors respond to substances in the air. 2. The olfactory receptors transmit impulses to the brain. 3. The brain determines what the smell is. 4. Olfactory fatigue results from a long-term exposure to a particular odor.

The Sense Organs E. The tongue 1. The tongue can taste substances that are sweet, salty, sour and bitter. 2. The brain determines the substance being tasted. This is done by combining taste sensations with smell sensations.

Reflex Action A. A reflex is a nervous system response that is automatic. B. Pathway of a reflex 1. A sensation is detected and an impulse is sent to the spinal cord using a sensory neuron. 2. The sensory neuron causes an associative neuron (interneuron) in the spinal cord to send an impulse to a motor neuron. 3. The motor neuron stimulates a muscle to contract.

Reflex Action C. The knee-jerk reflex 1. The hammer causes a stretch of the tendon below the kneecap. 2. The stretch receptors send an impulse to the interneuron via a sensory neuron. 3. The interneuron stimulates the motor neuron which causes the leg muscle to contract.

The End Lab 8 The Nervous System