31 December 2018 Title: Sensory receptors

Slides:



Advertisements
Similar presentations
Communication and Homeostasis
Advertisements

E2 – Perception of stimuli
Senses and Perception Lab 17.
Sensation Overview How is perception different from sensation? What is psychophysics? What do sense organs do? How does vision work? How does this compare.
Communication and Homeostasis A2 Biology F214. Why do multi cellular organisms need communication systems? Organisms need to detect changes in their external.
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.
NEW TOPIC On a full page write in big letters: Coordination and Control B1 2.1 Responding to Change Text p.46.
Human Systems: Nervous System & Sense Organs
A REVIEW: SENSES A five part review, Utilize your book and outside resources to fill out your study guide!
_ _ _ N E W R O N N E U R O N. 6.5 Nerves Homework.
Do Now How do you communicate messages to friends?
Ch 35 Sensors AP Lecture. Sensory Receptor Cells Sensors or receptors that convert sensory stimuli into change in membrane potential. This causes an action.
Sensory Receptors Miss Tagore A2 Biology. Learning Outcomes Outline the roles of sensory receptors in mammals in converting different forms of energy.
The Senses. Sensory Receptors Sensory receptors = neurons that react directly to stimuli from the environment. – Light, sound, motion, chemicals, pressure.
Unit 10 Chapter 36 The Nervous System
Sensory Receptors.
A.P. Biology Sense Organs.
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.
The Structure of Neurones Aims 1.To describe the structure of sensory and motor neurones 2.To relate the structure of sensory and motor neurones to their.
The Nervous System Control Systems. MRSGRENCMRSGRENC ovement espiration ensitivity rowth & development eproduction xcretion utrition ontrol of internal.
 Need for communication  Communication is required for coordination  Gather information  Process information  Respond accordingly.
True or false 1.The pacinian corpuscle is a receptor 2.The pacinian corpuscle is found in the skin 3.The pacinian corpuscle is stimulated by heat 4.The.
SENSATION The basics, vision, and hearing, and the other senses.
Receptors are transducers
Unit 1 Lesson 5 The Nervous and Endocrine Systems
13/11/
KEY CONCEPT The senses detect the internal and external environments.
Option A.3 Perception of Stimuli
THE NERVOUS SYSTEM.
The Senses Chapter 29.
Brain Spinal Cord Nerves Neurons
Title: How the eye works
Unit F214: Communication, Homeostasis and Energy
Unit 1 Lesson 5 The Nervous and Endocrine Systems
Ch. 21 Control and Coordination
Lesson starter What is the central nervous system made up of?
Senses and Perception Chapter 4.
Sensory Receptors.
Some Most All Role of receptors WAL:
Friday, 21 September Organisms respond to changes in their internal and external environments Receptors • explain the features of sensory.
Chapter 5: Control and Coordination
How do organisms receive and respond to information from their environment? Yesterday and today you worked with your partners on stations that tested your.
The skin performs all of the following except
Unit 12: Human Regulation and Reproduction
Title: The nervous system 1
Sensory Pathways Functions of sensory pathways: sensory reception, transduction, transmission, and integration For example, stimulation of a stretch receptor.
Sensory Mechanisms.
Responses in the Human Nervous System 1
Nervous System.
Sensory Mechanisms.
Senses System Douglas Todey.
Sensitivity.
Be able to label THE LOBES Process of sensation Energy stimulates sense organ Receptor cell sends signal along sensory nerves Signals enter the.
Sensory Mechanisms.
CHAPTER 14 SECTION 14.1 SENSORY INFORMATION
Our Five Senses Systems
Chapter 4: Sensation and Perception
A.3 Perception of Stimuli
The Senses.
Nerves & Reflexes.
The Senses.
Unit 1 Lesson 5 The Nervous and Endocrine Systems
How do cells in the body communicate?
5 Main Sensory Organs S.O Skin Nose Tongue Ear Eye.
Types of Neurons Dendrite Types of Neurons There are 3 types of neurons. Sensory Neurons  Neurons located near receptor organs (skin, eyes, ears).
Notes – Nervous System 1.
Section 3: Sensory Systems
Specialized Nerve Cells
Presentation transcript:

31 December 2018 Title: Sensory receptors Learning question: What is the basic structure of a neuron? Starter: draw and label a neurone from GCSE knoweldge

Key words Sensory receptor Transducer Sensory neurone Motor neurone Dendron (dendrites) Axon Myelin Schwaan cells Node of Ranvier

Learning Outcomes Outline the roles of sensory receptors in mammals in converting different forms of energy into nerve impulses. Describe, with the aid of diagrams, the structure and functions of sensory and motor neurones.

Sensory Receptors Changes in our surroundings are detected by specialised cells called sensory receptors. Sensory receptors convert one form of energy into another. E.g. a change in pressure in the skin. Change in energy levels in the environment is called a stimulus.

Sound receptors in the inner ear (cochlea) Light-sensitive cells (rods and cones) in the retina of the eye Vibrations in the air Olfactory cells lining the inner surface in the nasal cavity Light intensity and range of wavelengths (colour) Pressure receptors (Pacinian corpuscles) in the skin Presence of volatile chemicals Taste buds in the tongue, hard palate, epiglottis and the first part of the oesophagus Pressure on skin Presence of soluble chemicals

Summary Sensory receptors detect changes from surroundings; Sensory receptors transduce signals – they convert one type of energy into a form of electrical energy; Changes in energy levels in the environment are called stimuli; Stimuli are converted by sensory receptors into electrical energy called a nerve impulse.

Basic neurone structure

Task Read page 13 of your textbook and label the diagrams of sensory and motor neurones. Complete questions 1-3 in sentences – you will need these at the basis of your notes! Self assessment: check answers at back of textbook.

The Plasma Membrane - review Made of phospholipids and about 6 different proteins How do molecules get across the cell membrane? What are the mechanisms of transport across the membrane?

Task Read pages 14-15 carefully. Write out key words and definitions.