Click to enlarge, hopefully...
Monday, March 31, 2008
Monday, March 24, 2008
Germ Infection Experiment
1. What we did
2. Results - what expected
3. Make better?
Basically we smeared this glowing "germ" stuff on our hands, then went into three different classrooms and three of us chose one person to shake hands with, then told them to shake hands with a few more people. Our results were surprisingly vague; we basically only found one person with the stuff on her hands still, probably because the tester had really smeared the stuff on her hands, so it showed up much better. I think that if we were to ever do this test again we might try it in a certain room where we would make all the test subjects stay until the test is over to prevent hand-washing, rubbing/wearing off, etc. I also really like the "powdered dollar bill" idea. :)
2. Results - what expected
3. Make better?
Basically we smeared this glowing "germ" stuff on our hands, then went into three different classrooms and three of us chose one person to shake hands with, then told them to shake hands with a few more people. Our results were surprisingly vague; we basically only found one person with the stuff on her hands still, probably because the tester had really smeared the stuff on her hands, so it showed up much better. I think that if we were to ever do this test again we might try it in a certain room where we would make all the test subjects stay until the test is over to prevent hand-washing, rubbing/wearing off, etc. I also really like the "powdered dollar bill" idea. :)
Nervous System Article Assignment
SUMMARY:
This article was about a scientist named Stice who has created a device from stem cells that allows for a reading that detects any chemicals in the air. This could be a very useful item, in preventing chemical poisoning, and chemical warfare. However, it is stated to be controversial in terms of where they recieve the stem cells from: "naturally dead embryos." Despite this, Stice seems to be a reliable scientist in terms of the success of his experiments.
Stem cell research is: what tissues you can make with stem cells and what you can cure with them.
How would these chemical detecting devices affect your life? They would really prevent some dangers of the world, such as if there was an accident at a nuclear plant, the device would keep you from getting radiation poisoning by warning you ahead of time. Therefore, at least some of the risks of death in society could be reduced. The same thing goes for chemical warfare; surviving war by avoiding chemicals leads to the possible winning of more wards, which leads to a change in the government/society, which could affect my life. Possibly.
Are these devices ethical? I believe so, in terms of causing no physical pain to anyone. The only controversial thing about them is the fact that they are using "naturally dead embryos," which means that they are using embyros that are 'too deficient to produce a fetus if implanted,' as stated in the article. Personally, I think they're A-okay, especially since they would be preventing people from dying of chemical poisoning, which is something I think is really sad.
How do you think these devices work? I'm not too sure, but it must be something related to reading the cells' reactions to chemicals present in the air. I have no clue how they can 'read' the cells' reactions, but it makes sense that the cells would react to chemicals since they react if they're in your body. The cells must do something certain, send out a certain nerve impulse or something that allows for the device to detect something chemical in the air.
What are some ways that these device can be used? In wars for things like tear gas, in homes for things like chemical poisoning in the air, or for countries with little/no defense against airborne chemicals. Basically it has many different uses. It could even be used in a nuclear powerplant to prevent spills/leaks, at least somewhat.
This article was about a scientist named Stice who has created a device from stem cells that allows for a reading that detects any chemicals in the air. This could be a very useful item, in preventing chemical poisoning, and chemical warfare. However, it is stated to be controversial in terms of where they recieve the stem cells from: "naturally dead embryos." Despite this, Stice seems to be a reliable scientist in terms of the success of his experiments.
Stem cell research is: what tissues you can make with stem cells and what you can cure with them.
How would these chemical detecting devices affect your life? They would really prevent some dangers of the world, such as if there was an accident at a nuclear plant, the device would keep you from getting radiation poisoning by warning you ahead of time. Therefore, at least some of the risks of death in society could be reduced. The same thing goes for chemical warfare; surviving war by avoiding chemicals leads to the possible winning of more wards, which leads to a change in the government/society, which could affect my life. Possibly.
Are these devices ethical? I believe so, in terms of causing no physical pain to anyone. The only controversial thing about them is the fact that they are using "naturally dead embryos," which means that they are using embyros that are 'too deficient to produce a fetus if implanted,' as stated in the article. Personally, I think they're A-okay, especially since they would be preventing people from dying of chemical poisoning, which is something I think is really sad.
How do you think these devices work? I'm not too sure, but it must be something related to reading the cells' reactions to chemicals present in the air. I have no clue how they can 'read' the cells' reactions, but it makes sense that the cells would react to chemicals since they react if they're in your body. The cells must do something certain, send out a certain nerve impulse or something that allows for the device to detect something chemical in the air.
What are some ways that these device can be used? In wars for things like tear gas, in homes for things like chemical poisoning in the air, or for countries with little/no defense against airborne chemicals. Basically it has many different uses. It could even be used in a nuclear powerplant to prevent spills/leaks, at least somewhat.
Thursday, March 20, 2008
Basic Eye Anatomy Worksheet
1. The eye is part of which nervous system? The CNS.
2. What types of tissues give the eye protection? Fatty and connective.
3. What structure in the eye produces tears? Lacrimal glands.
4. What acts as an antibacterial layer in the eye? The conjunctiva.
5. What is the cornea? The transparent layer that is the anterior part of the sclera, a tough fibrous connective tissue that protects the eye.
The Choriod is the middle layer of the eye that contains blood vessels and provides the eye with nutrition.
6. What layer of the eye contains the rods and cones? The retina.
7. What is the function of the rods? The cones? The rods are for night vision and the cones are for daylight and color vision.
8. What is the colored part of the eye? The iris.
9. What structure allows light to enter the eye? The pupil.
10. Sketch picture of eye with following labeled: lacrimal glands, eyelashes, iris, pupil, cornea, lens, eyelid, sclera, choroids, optic nerve, and retina
Tuesday, March 18, 2008
Basic Ear Anatomy Worksheet
1. Sketch a picture of an ear and label the following:
Inner ear
middle ear
outer ear
pinna
tympanic membrane
cochlea
stapes
malleus
incus
Inner ear
middle ear
outer ear
pinna
tympanic membrane
cochlea
stapes
malleus
incus
Click to enlarge.
2. What is the function of the following:
Pinna - a cartilage flap that directs sound waves into the ear
Tympanic membrane - responsible for turning sound waves into vibrations
Ossicles - the three bones inside the ear that help to amplify sounds
Cochlea - Fluid filled sac that converts sound into nerve impulses through way of tiny hairs located on the walls of the cochlea
Semicircular canals - Used for balance control
What three bones make up the ossicles? The malleus, the incus, and the stapes.
What is the function of hairs in the ear? To process sound vibrations into nerve impulses.
Pinna - a cartilage flap that directs sound waves into the ear
Tympanic membrane - responsible for turning sound waves into vibrations
Ossicles - the three bones inside the ear that help to amplify sounds
Cochlea - Fluid filled sac that converts sound into nerve impulses through way of tiny hairs located on the walls of the cochlea
Semicircular canals - Used for balance control
What three bones make up the ossicles? The malleus, the incus, and the stapes.
What is the function of hairs in the ear? To process sound vibrations into nerve impulses.
Monday, March 17, 2008
Basic Nervous System Anatomy Worksheet
1. What does CNS and PNS stand for? Central Nervous System and Peripheral Nervous System.
2. What are the parts of the CNS? The brain and spinal chord.
3. Describe something that you do on a regular basis that your PNS controls. Digest food.
4. What are the two divisions of the autonomic nervous system and what does each control?
Sympathetic Nervous System - controls the body in times of stress, worry, fear, and emergency.
Parasympathetic Nervous System - brings the body to a normal state and allows for rest and relaxation.
5. What are the three main types of neurons? What is the function of each?
Sensory Neuron - conducts impulses from the body to the CNS
Motor Neuron - conducts impulses from CNS to effector organ
Interneuron - conducts impulses within the CNS
6. What is the function of the axon of a nerve cell? Sends out the impulses. The dendrite? Recieves the impulses.
7. What is a synapse? The transfer of impulses from the dendrite of one neuron to the axon of another neuron over the synaptic gap.
8. Sketch a neuron and label the axon and the dendrite.
2. What are the parts of the CNS? The brain and spinal chord.
3. Describe something that you do on a regular basis that your PNS controls. Digest food.
4. What are the two divisions of the autonomic nervous system and what does each control?
Sympathetic Nervous System - controls the body in times of stress, worry, fear, and emergency.
Parasympathetic Nervous System - brings the body to a normal state and allows for rest and relaxation.
5. What are the three main types of neurons? What is the function of each?
Sensory Neuron - conducts impulses from the body to the CNS
Motor Neuron - conducts impulses from CNS to effector organ
Interneuron - conducts impulses within the CNS
6. What is the function of the axon of a nerve cell? Sends out the impulses. The dendrite? Recieves the impulses.
7. What is a synapse? The transfer of impulses from the dendrite of one neuron to the axon of another neuron over the synaptic gap.
8. Sketch a neuron and label the axon and the dendrite.
Wednesday, March 5, 2008
Creative Writing with Medical Terms
Medical Roots, Prefixes, and Suffixes in Haiku form!
Hear the acoustic
Playing in albino snow
My biography
The chiropractor
He makes not an incision
Instead he pops bones
The labyrinth twirls round
I cannot find my way out
Will I die in here?
The computer stops
It will not make any more
Manual it is
She morphs into air
But what if I breathe her in?
I’ll run so I don’t
My myofibrils
Have disappeared once again
I am now rubber
The necromancer
He sings a song about death
It is a sad song
My osteocytes
Are really very small things
You can’t see them
Phagocytosis
The blood cells eat the virus
And then you are well
You’ll catch pneumonia
If you remain in that snow
Come and have some tea
The vein from your lungs
“Pulmonary artery”
Everyone has one
The quadruplets flew
Over the town, far away
They left this morning
He was sarcastic
When he said that you were dull
But I guess you are…
Ouch, that’s my sternum!
That really hurt, you loser
Now buy me some pie
Stethoscopes are cold!
Doctors think it is funny
I will pay them back
Synchronized swimming
It takes a lot of teamwork
...oh, and swimming skill…
Synovial joint
You help me move my body
How I love you so
Heterotrophic
That’s a cool ability
I wish that I was
“The vena cava”
It keeps me and you alive
But you don’t have one…?
Her xiphoid process
Got broken off one sad day
During CPR
Catastrophic storms
I am terrified of them
I hope for safety
One day I noticed
Cervical vertebrae sign
It said “watch your neck”
The diaphysis
Was broken in a fracture
A complete fracture
Hear the acoustic
Playing in albino snow
My biography
The chiropractor
He makes not an incision
Instead he pops bones
The labyrinth twirls round
I cannot find my way out
Will I die in here?
The computer stops
It will not make any more
Manual it is
She morphs into air
But what if I breathe her in?
I’ll run so I don’t
My myofibrils
Have disappeared once again
I am now rubber
The necromancer
He sings a song about death
It is a sad song
My osteocytes
Are really very small things
You can’t see them
Phagocytosis
The blood cells eat the virus
And then you are well
You’ll catch pneumonia
If you remain in that snow
Come and have some tea
The vein from your lungs
“Pulmonary artery”
Everyone has one
The quadruplets flew
Over the town, far away
They left this morning
He was sarcastic
When he said that you were dull
But I guess you are…
Ouch, that’s my sternum!
That really hurt, you loser
Now buy me some pie
Stethoscopes are cold!
Doctors think it is funny
I will pay them back
Synchronized swimming
It takes a lot of teamwork
...oh, and swimming skill…
Synovial joint
You help me move my body
How I love you so
Heterotrophic
That’s a cool ability
I wish that I was
“The vena cava”
It keeps me and you alive
But you don’t have one…?
Her xiphoid process
Got broken off one sad day
During CPR
Catastrophic storms
I am terrified of them
I hope for safety
One day I noticed
Cervical vertebrae sign
It said “watch your neck”
The diaphysis
Was broken in a fracture
A complete fracture
Tuesday, March 4, 2008
Monday, March 3, 2008
Skeletal Muscle Physiology Worksheet
What percent of the body is smooth muscle? 40% Striated muscle? 5 to 10%
Contracted:
Name 3 types of muscle proteins. What is the function of each?
1. Stroma - a structural element to hold structures in place
2. Cellular - are not characteristic of muscle
3. Contractile - two types: myosin and actin.
What is a myofibril? A muscle fiber.
Sketch a picture of a sarcomere. Label the I-band, the A-band, the Z-line and the H-zone.
Name the two filaments that make up a sarcomere. Thick filament and thin filament.
Draw a sarcomere at rest, stretched out and contracted.
At Rest:
Stretched Out:
Contracted:What is the sliding filament theory? That filaments slide together or apart rather than shortening or lengthening.
Muscle relaxation ensues upon the removal of what? Calcium ions.
Muscle relaxation ensues upon the removal of what? Calcium ions.
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