Structure of sense organs

Part 1 -Lesson 3

by Rong SU

Structure of eyes

ugxg.blogspot.com

continuedCornea receives the light rays and then light rays pass

through the pupil and into the lens.Iris (colored ring) is the muscle. It changes the size of

the pupil when light rays pass through our pupilThe retina is filled with approximately 150 million

light-sensitive cells called rods and cones. Rods identify shapes and work best in dim light.Cones identify color and work best in bright light.

Then optic nerve sends the information to the brain.

Science kids. (2013). From http://www.sciencekids.co.nz/sciencefacts/humanbody/eyes.html

Structure of skin

Image from http://www.anatomy.tv/StudyGuides/Images/skin2.jpg

ContinuedThe skin is the largest human organ The three layers of skin: stratum corneum, epidermis, dermisThere is hair on our skinSense of touch originates in the dermis-the bottom layer of

our skin Tiny nerve endings in the dermis givesus information about

the things our body touches. Information is carried through the spinal cord, which sends messages to the brain to register the feeling

Our body has about 20 different types of nerve endings. The most common receptors are heat, cold, pain, and pressure or touch receptors.

Some areas of the body are more sensitive than others because they have more nerve endings

Science kids. (2013). From http://library.thinkquest.org/3750/taste/taste.html

Structure of sense organ Part2 –lesson 4

Structure of ears

Image from http://www.virtualmedicalcentre.com/anatomy/ear/29

continued

Noises send vibrations (or sound waves) through the air into our ear canal by our outer ear. When vibrations move into our middle ear, they hit our eardrum (Stirrup is the last one), then pass into a coiled tube in the inner ear called the cochlea.

-Cochlea contains fluid and thousands of cilia, which is nerve endings like hair. Vibrations cause the cilia to move, which then send messages sent to the brain via the auditory nerve. The auditory nerve send messages to our brain then the brain decodes the messages

(Oracle, 2013)http://library.thinkquest.org/3750/taste/taste.html

Structure of noses

Image from www.aafp.org

Structure of nosesOur nose has special cells to help us smellOur nose has 2 nostrils that are divided by the nasal

septum.The nasal septum is made up mostly of cartilage, a tissue

that is stiffer than muscle but more flexible than bone.Air passing through the nasal cavity is adjusted to match

body temperature Short hairs in the nasal cavity remove dust and other

particlesWhen air passes through a thick layer of mucous to the

olfactory bulb after the nasal cavity, smells are recognized.

Science Kids. (2013). From http://www.sciencekids.co.nz/sciencefacts/humanbody/nose.html

Structure of tongue

Image from http://science.howstuffworks.com/life/humanbiology/tongue2.htm

continued

Image from http://library.thinkquest.org/3750/taste/taste.html

Brain parts and functions

Lesson 6 Identify our sensory preference in learning

modality Learn Best Through the Use of ...(Dunn & Dunn model)

VisualLearners(input)

Charts, graphs, diagrams, and flow charts Sight words Flashcards Visual similarities and differences Pictures and graphics Maps Silent reading Written instructions Computer assisted learning

AuditoryLearners(input)VerbalLinguisticIntelligence

Discussion, dialog, debate Memorization Phonics Oral reading Hearing anecdotes or stories Listening to tapes or CDs Cooperartive learning groups

Charles Sturt University. (2013). From http://www.csu.edu.au/student-services/my-studies/learning/learn

continued

modality Learn Best Through the Use of ...(Dunn & Dunn model)

KinestheticLearners(input)

Playing games Role playing Read body language/gestures Mime Drama Learn or memorize while moving (pacing, stationary bike, finger or whole body games)

TactileLearners(input)

Learning by doing "Hands-on" Creating maps Building models Art projects Using manipulatives Drawing, designing things Writing / tracing

Charles Sturt University. (2013). From http://www.csu.edu.au/student-services/my-studies/learning/learn

References Kidshealth. (2013). Model eardrum. Retrieved from http://kidshealth.org/kid/closet/experiments/experiment_eardrum.html

Learning styles. (2013). Baltimore County Public Schools. Retrieved from http://www.bcps.org/offices/lis/models/tips/styles.html

Mahdjoubi, L. & Akplotsyi, R. (2012). The impact of sensory learning modalities on children’s sensitivity to sensory cues in the perception of their school environment. Journal of Environmental Psychology, 208–215. Retrieved from http://www.sciencedirect.com.simsrad.net.ocs.mq.edu.au/science/article/pii/S0272494412000114

  NCS Pearson (2013). Tongue-structure. Retrieved from

http://www.tutorvista.com/content/biology-iv/nervous-coordination/tongue-structure.php#function-of-each-part-of-the-tongue

Overview of Learning Styles,(2013). Advanogy. Retrieved from http://www.learning-styles-online.com/overview/

Reflective practice. (2007). Examples of learning styles. Retrieved from http://www.education.vic.gov.au/Documents/childhood/professionals/support/egsls.pdf

What is My Learning Style? (2013).Charles Sturt University. Retrieved from http://www.csu.edu.au/student-services/my-studies/learning/learn

Your sense of sight. (2013). Oracle. Retrieved from http://library.thinkquest.org/3750/taste/taste.htm

Science Kids. (2013). Human body facts: fun eye facts for kids. Retrieved from http://www.sciencekids.co.nz/sciencefacts/humanbody/eyes.html

Science Kids. (2013). Human body facts: fun skin facts for kids. Retrieved from http://www.sciencekids.co.nz/sciencefacts/humanbody/skin.html

Science Kids. (2013). Human body facts: fun ear facts for kids. Retrieved from http://www.sciencekids.co.nz/sciencefacts/humanbody/ears.html

Science Kids. (2013). Human body facts: fun nose facts for kids. Retrieved from http://www.sciencekids.co.nz/sciencefacts/humanbody/nose.html