Structures of the Eye and Sheep Eye Dissection Prep

Slides:

Advertisements

Similar presentations

Eye See you!. On the back of your EYE worksheet… 1. copy the definitions for each term and write the information on the lines provided for you. 2. Copy.

Advertisements

Ranya Marrakchi Kelsey Wright Taylor Pakulla

PETER REONISTO, MD MOORPARK COLLEGE

The eye is an important sense organ. It takes light and images from the world around us and sends them as an electrical impulse to the brain. Parts: Cornea:

The cow eye Aqueous humor – clear fluid helps the cornea keep its rounded shape. – yellow on pict Optic disk – the place where all nerves from the retina.

Cornea- The clear covering at the front of the eye that lets light rays into the eye.

The Eye Structure. External Parts of the Eye (Tear Duct)

Sheep’s Eye Dissection Inside & Out:

Year Science. Cornea Transparent outer covering of the eye It is convex in shape to allow the light that passes through it to be refracted Cornea.

The Senses & Vision p What are the five senses? 1.Vision 2.Hearing 3.Smell 4.Taste 5.Touch.

COW EYE DISSECTION. Cows Compared to Humans Without moving your head, look up. Look down. Look all around. Six muscles attached to your eyeball move.

Special Senses Lecture (Day 1:Eye anatomy & Vision)

 The lens of the eye is a transparent object behind the iris that changes shape to help adjust the eye's focus to see near or distant objects.

EYE The eye is an extension of the brain

The retina is a layer of light- sensitive cells in the back of the eye.

The eye is connected to the brain via the optic nerve. Images are interpreted by the occipital lobe.

Biology 12 Nervous System THE HUMAN EYE. EYE The eye is an extension of the brain. It helps us take in light information from our surroundings.

Sheep Eye Dissection.

Label the Eye – use book pg. 618 Structure & Function: use book pgs Cornea: clear tissue that covers front of eye. Pupil: opening through.

The Eye A light receptor human fly Giant squid eagle.

Light and Your Eyes. You have five human senses that help you function. These senses work together to give you a complete picture of your environment.

Eye Can See Clearly Now. Basic Anatomy The eye is approximately 2.54 cm wide, 2.54 cm deep and 2.3 cm tall.

Part I: The Eye Part II: Sheep Eye Dissection

Eye dissection.

Eye Dissection.

Topic A.3 Perception of Stimuli

Process of Eyesight and Hearing

The Eye and Sight.

A3: Perception of Stimuli

Special Senses - Eyes.

Part I: The Eye Part II: Sheep Eye Dissection

Touch Response to a mechanical stimulus. The skin is the largest sensory organ. Sensory receptors detect pressure, pain, heat, cold.

What are the parts of the eye?

The Human Eye and Vision

SENSE ORGANS Structures that carry messages about your surroundings to the Central Nervous System Eyes, ears, nose, tongue, skin.

Unit A: Nervous and Endocrine Systems

The Eye and Sight Contrast ways in which light rays are bend by concave and convex lenses. Describe how a prism forms a visible spectrum Explain why different.

A.3 Perception of Stimuli

7.5.g Students know how to relate the structures of the eye and ear to their functions.

C-Notes: Anatomy of the EYE

Why do you think you have eyebrows?

DO NOW Which body system did you find most interesting? Why? Date:

Human Visual System Basic Anatomy.

Perception of Stimuli.

Copyright © 2004 by Thomson Delmar Learning. ALL RIGHTS RESERVED.

Part I: The Eye Part II: Sheep Eye Dissection

Topic A.3 Perception of Stimuli

Goal 8- The Eye Understand how we see . Goal 8- The Eye Understand how we see

Part I: The Eye Part II: Sheep Eye Dissection

The Eye. The Eye focuses light rays to produce objects The Eye focuses light rays to produce objects.

Cow Eye Quiz Dissection 101: Click

Title: The Human Eye LO: 1. Identify the parts of the human eye and state their functions. 3/4/2019 STARTER: What do these have in common?

Structure of the Eye Anterior Cavity: smaller cavity contained between the cornea and lens, filled with aqueous humour Sclera: white of eye acts as support.

The Eye Chapter 8.

EYE The eye is an extension of the brain

Lab: A Sheep’s Eye Purpose: To explore the anatomy of the eye.

SENSORY SYSTEM STRUCTURE OF THE EYE.

Eye Structure and Seeing Light

Eye Structure and Seeing Light

2. Cornea is Tough, clear covering over the iris and pupil that helps protect the eye. Light bend as it passes through the cornea. This is the first.

26 / 09 Tuesday Kuapapa: Dissect a cow’s eye to observe and describe the structure of eye.

Sheep Eye Dissection.

Presentation transcript:

Structures of the Eye and Sheep Eye Dissection Prep

The Eye

Eye: sense organ that receives light and focuses it; sending impulses to the brain 3 Main Parts Sclera: Outer Layer of Eye tough white outer tissue of the eye Choroid: Middle Layer of Eye Retina—inner layer of the eye

Credit: National Library of Medicine, National Institutes of Health

Sclera: Outer Layer of the Eye Sclera: white outer covering of the eye provides support and shape. Cornea: Clear layer at the front of eye where light passes.

Choroid: Middle Layer of Eye Pupil: Opening where light enters; looks like a black spot Choroid: The middle layer of the eye. Iris: Colored layer of the choroid; controls the size of the pupil

Retina: Inner Layer of the Eye Retina: Covering along the inside of the eye; contains neurons called rods and cones

Other Eye Structures Vitreous humor: clear substance (jelly-like) inside the eye; Aqueous humor: clear liquid that fills area between cornea and the lens; constantly is being replaced by body

Other Eye Structures Lens: Focuses Light onto the retina Optic Nerve: Carries impulses from the eye to the brain

Structures of the eye Aqueous humor Choroid

Sheep Eye Dissection

Step 1: Locate External Structures Locate cornea, sclera, optic nerve

Step 2: Begin Dissection Using your scalpel cut into the eye at the junction of the sclera and the cornea Make incision with the scalpel and then cut around the cornea with the scissors

Step 3: Separate eye and identify structures Separate the front of the eye and set aside Identify the structures of the back of the eye Aqueous humor (watery liquid) Victreous humor (jelly-like liquid) Retina/Blind Spot (where optic nerve attaches) Lens (looks like marble)

Step 4: Identify structures of front section of eye Cornea (clear covering at front of eye) Iris (colored section of eye) Pupil (opening through iris)

http://www.geocities.com/centennial3d/sheep_eye.html

Review Activity http://www.eschoolonline.com/company/examples/eye/eyedissect.html

Sclera: Outer Layer of the Eye