Cow Test Set
Questions With Reviewed Correct
Detailed Answers
New Update!!
1. What shape is the pupil? - ANSWER circle
2. Is the response of your pupil a reflex or a voluntary action? Describe how this
response is controlled by the nervous system. - ANSWER The response of my
pupil is a reflex. This is controlled by the nervous system in regards to when a light
is detected the response goes straight to the spinal cord and then the response is
immediatley signaled back through the motor neurons.
3. Describe in your own words the path of light from the time it enters the eye to
the time it leaves the eye to travel the brain. - ANSWER The pupil lets light
into the inner eye, which is controlled by the iris which determines how much
light enters. The cornea bends the light to make an image. The lens then makes
and image on the eye's retina by focusing and shaping. The retina detects the
images. Finally, the optic nerve carries the image from the retina to the brain
were it leaves at the blind spot.
4. Describe two ways in which the cow eye and human eye differ in structure.
How are these differences linked to function? - ANSWER One difference is
that cows only have 4 muscles and humans have 6 muscles that control the
, directions we are able to look at. The second difference is that cows have a
tapetum which reflects light back through the retina to help with night vision.
5. 3 Layers that make up the wall of the eyeball - ANSWER Sclera, Retina,
Choroid
6. 3 Structures that help focus the light rays entering the eye - ANSWER Lens,
Cornea, Iris
7. Contains sensory receptors for vision. - ANSWER Retina
8. The colored portion of the eye. - ANSWER Iris
9. This structure changes shape to focus light on the retina. - ANSWER Lens
10. The opening in the iris through which light passes. - ANSWER Pupil
11. Helps the eyeball keep its round shape and prevents it from collapsing. -
ANSWER Vitreous Humor
12. Outer layer of the eye. Protects the eye and helps it keep its shape. - ANSWER
Sclera
13. Cord at the back of the eyeball. Carries impulses from the eye to the brain. -
ANSWER Optic Nerve
Questions With Reviewed Correct
Detailed Answers
New Update!!
1. What shape is the pupil? - ANSWER circle
2. Is the response of your pupil a reflex or a voluntary action? Describe how this
response is controlled by the nervous system. - ANSWER The response of my
pupil is a reflex. This is controlled by the nervous system in regards to when a light
is detected the response goes straight to the spinal cord and then the response is
immediatley signaled back through the motor neurons.
3. Describe in your own words the path of light from the time it enters the eye to
the time it leaves the eye to travel the brain. - ANSWER The pupil lets light
into the inner eye, which is controlled by the iris which determines how much
light enters. The cornea bends the light to make an image. The lens then makes
and image on the eye's retina by focusing and shaping. The retina detects the
images. Finally, the optic nerve carries the image from the retina to the brain
were it leaves at the blind spot.
4. Describe two ways in which the cow eye and human eye differ in structure.
How are these differences linked to function? - ANSWER One difference is
that cows only have 4 muscles and humans have 6 muscles that control the
, directions we are able to look at. The second difference is that cows have a
tapetum which reflects light back through the retina to help with night vision.
5. 3 Layers that make up the wall of the eyeball - ANSWER Sclera, Retina,
Choroid
6. 3 Structures that help focus the light rays entering the eye - ANSWER Lens,
Cornea, Iris
7. Contains sensory receptors for vision. - ANSWER Retina
8. The colored portion of the eye. - ANSWER Iris
9. This structure changes shape to focus light on the retina. - ANSWER Lens
10. The opening in the iris through which light passes. - ANSWER Pupil
11. Helps the eyeball keep its round shape and prevents it from collapsing. -
ANSWER Vitreous Humor
12. Outer layer of the eye. Protects the eye and helps it keep its shape. - ANSWER
Sclera
13. Cord at the back of the eyeball. Carries impulses from the eye to the brain. -
ANSWER Optic Nerve
