THE MONTHLY MED
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The<br />
Monthly<br />
TISSUES…<br />
Skin issues?<br />
MORTAL<br />
HOMEOSTASIS?<br />
HOW TO STAY<br />
HEALTHY<br />
ANATOMY
IN THIS<br />
EDITION
Ana Osti<br />
Ana Osti<br />
Enid Cavazos<br />
Abril E. Chavez<br />
Enid Cavazos<br />
Karen Salazar<br />
Alejandra Cintora<br />
Abril Chávez<br />
Karen Salazar<br />
Enid Cavazos<br />
Alejandra Cintora
What is<br />
HOMEOSTASIS?<br />
•Means “to remain the same” .<br />
•All our organs are bound to<br />
homeostasis.<br />
•When a disease hit the body,<br />
homeostasis is interrupted:<br />
equilibration is broken and<br />
health is lost.<br />
•External factors, such as<br />
weather, stress, bacterias,<br />
affect homeostasis.<br />
•Health is having a complete,<br />
physical, mental and social<br />
well being, not the absence of<br />
disease<br />
Thre are several health affecting factors:<br />
Disease is more likely to<br />
occur in some members<br />
of the population than in<br />
others because of risk<br />
factors<br />
One model of disease<br />
causation is the<br />
epidemiologic triangle:<br />
Disease results from the<br />
interaction between the<br />
agent and a susceptible<br />
host in an environment<br />
that supports transmission<br />
of the agent from source<br />
to that host.<br />
Every infections disease is caused by one or more types of<br />
microorganisms known as pathogens.<br />
Pathogens invade the body and attack its cells and tissues.<br />
Different types of pathogens include bacteria, viruses,<br />
protozoans, and fungi.<br />
Innate Immune System<br />
Some healthaffecting<br />
factorrs<br />
are chemcal,<br />
metabolic, physical<br />
and inffecious..<br />
There are two<br />
kinds of damaging<br />
agents:<br />
a)Physical<br />
agents:: Gas,<br />
temperture,<br />
radiation, etc.<br />
b)chemical<br />
agents: Drugs, toxic<br />
substances<br />
The immune system provides two<br />
main types of defenses:<br />
Innate immune system<br />
provides nonspecific resistance.<br />
‣ Adaptive immune<br />
system provides<br />
specific resistance in<br />
the form of<br />
lymphocytes<br />
<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong><br />
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5
TISSU<br />
<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong> 6
ES<br />
A tissue is a group or ensemble of<br />
similar cells that have a specific<br />
function. All of the cells come from<br />
the Mother cell.<br />
We have four kinds of tissues:<br />
The Epithelial tissue have three<br />
main functions<br />
a) To protect and filtrate<br />
b) Lining and cover the cavities<br />
c) Secrets hormones, sweat,<br />
mucus, and enzymes.<br />
The Connective tissue supports,<br />
connects, fills up spaces, or<br />
separates the different tissues. It’s<br />
divided into the cartilage, bone,<br />
adipose tissue, and blood.<br />
The Cartilage tissue is very flexible,<br />
the cause of this is the COLLAGEN.<br />
Normally it’s found in the nose, ribs,<br />
the skeleton of the fetus, ears,<br />
between the vertebrae, and the<br />
end of the bones.<br />
Is used to store energy, protects<br />
organs, and to against cold. Also<br />
found in the heart, skin, and<br />
kidneys.<br />
Muscular tissue are elongated cells<br />
that Smooth: Called involuntary, is<br />
found in the internal walls of the<br />
organs and the blood vessels.<br />
Cardiac: Is found only in the heart<br />
and is involuntary in nature.<br />
The Nervous tissue is the main<br />
component of the brain and<br />
spinal, is composed of nerve cells.<br />
The functions are sensory input,<br />
integration, the control over the<br />
muscles and glands, and the<br />
mental activity.<br />
The Bone tissue the strongest and<br />
rigid part of the Connective tissue.<br />
The bone is formed by Calcium, in<br />
chemistry is .<br />
The Adipose tissue or “fat tissue”<br />
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. The intergumentary system is an organ system<br />
consisting of the skin, hair, nails, nerves and<br />
exocrine glands.<br />
Its main function is to act as a barrier to protect<br />
the body from the outside world. It also functions<br />
to retain body fluids, protect against disease,<br />
eliminate waste products, and regulate body<br />
temperature. In order to do these things, the<br />
integumentary system works with all the other<br />
systems of your body, each of which has a role to<br />
play in maintaining the internal conditions that a<br />
human body needs to function properly.<br />
The average person’s skin weighs<br />
10 pounds and has a surface<br />
area of almost 20 square feet.<br />
1. Makes a flexible/waterproof surface<br />
2. Helps eliminate useless substances through sweat.<br />
3. Regulates the body´s temperature<br />
4. Detects pain, sensations, preassure<br />
5. Sinthezises Cholecalciferol (aka Vitamin D)<br />
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Helps trasmit sensory<br />
information, Covers your<br />
whole ody except the palm<br />
of hands and feet.<br />
Is a formal name for “skin”. It has<br />
two layers:<br />
Is the outermost layer of the skin.<br />
Is the middle layer of the skin.<br />
•.Is composed by the<br />
connective tissue<br />
•Is made of collagen and<br />
elastin<br />
•Receives adn regulates the<br />
temperature from tiny blood<br />
vessels<br />
•Has glands<br />
•Has epithelial cells: made of<br />
stratified squamous epithelium<br />
•Covered by a protective layer<br />
of dead cells produced by<br />
Underlying Epithelial Cells.<br />
•Keratin, which gets the skin to<br />
be waterproof, and is<br />
produced by the cells.<br />
Is a plate of epidermis at<br />
the end of the fingers.<br />
Sweat glands<br />
Sebaceous glands<br />
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Melanin is an epithelial cell skin<br />
pigment. It is produced by a<br />
cell called melanocyte<br />
The more melanocyte, the darker the<br />
skin color<br />
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Salivary glands<br />
Mammary glands
All the middle part of<br />
the skeleton, this is the<br />
skull, the vertebral<br />
column. The rib cage<br />
has the ribs and sternum<br />
or breastbone.<br />
All the extremities of the<br />
body; the extremities are<br />
divided in two parts: upper<br />
and lower extremities, this<br />
includes the limbs and the<br />
pelvis.<br />
COMPONENTS<br />
The bones are composed<br />
by minerals and collagen<br />
fibers. We have many<br />
types of bones, someone<br />
are long, short, and flat<br />
bones.<br />
Is also form of connective<br />
tissue which is tough, semitransparent,<br />
elastic and<br />
flexible.. It composed by<br />
collagen and<br />
chodrocytes.<br />
Is the connection<br />
between two bones. The<br />
main function is to unify<br />
the structure and allows<br />
the movement of the<br />
body. This contains<br />
ligaments, tendons and<br />
cartilage.<br />
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<strong>THE</strong> MUSCULAR<br />
SYSTEM<br />
The muscular<br />
system is<br />
responsible for<br />
the movement<br />
of the human<br />
body, to<br />
maintain the<br />
position<br />
The muscular system is composed<br />
of three types of muscles<br />
• Skeletal<br />
• Smooth<br />
• Cardiac muscle<br />
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Types of muscles<br />
Skeletal Smooth Cardiac<br />
This type of muscle<br />
covers the skeletal<br />
system; the function<br />
of this muscle is to<br />
contract to move<br />
parts of the body, is<br />
voluntary<br />
smooth muscle is<br />
controlled by the<br />
unconscious part of<br />
the brain, it is known<br />
as involuntary muscle<br />
Is a muscle that can<br />
only be found in the<br />
heart<br />
it is a striated<br />
involuntary muscle,<br />
striations indicate that<br />
a muscle cell is very<br />
strong<br />
Cerebral Palsy<br />
Is the loss of motor<br />
function due to<br />
abnormal growth in<br />
the brain, can affect<br />
movement,<br />
coordination and<br />
balance<br />
Dermatomyositis<br />
Is an uncommon<br />
inflammatory<br />
disease, can affect<br />
children and adults<br />
alike but is more<br />
common in women,<br />
has no cure yet<br />
Myasthenia Gravis<br />
It is a condition which<br />
chronically causes<br />
muscles to weaken<br />
and tire easily<br />
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We have the answer to all your<br />
questions about the food processing<br />
machine aka the digestive system<br />
The digestive system's function is<br />
to absorb all the nutrients from<br />
the food and get rid of the parts<br />
of it that the body doesn't<br />
need.<br />
Our system is divided in two<br />
parts:<br />
- the digestive tract which is<br />
basically every primary part of<br />
the digestive system.<br />
- the accesory organs which<br />
are the ones that help the<br />
digestion indirectly such as the<br />
teeth, salivary glands, liver, etc.<br />
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Now that we know this, we can go ahead<br />
and explain what the digestion process is<br />
all about. The process begins with the<br />
mouth, when you put food in it and chew it<br />
with your teeth, the saliva also takes part in<br />
it to break down biomolecules. After this,<br />
the food bolus passes through the Larynx<br />
and Pharynx (also part of the respiratory<br />
system) which connects the inside of the<br />
mouth and the Esophagus. Its divided in<br />
three parts: - Oropharynx (mouth) -<br />
Nasopharynx (nose) - Laryngopharynx:<br />
connected to the esophagus and included<br />
a part called the Epiglottis which basically<br />
stops food from entering the lungs. Then the<br />
bolus makes its way into the esophagus<br />
with transports it into the stomach by a<br />
muscle contraction called Peristalsis.<br />
. The bolus enters the stomach through the Cardias, the the<br />
stomach starts to contract itself and releases Hydrochloric<br />
Acids and Pepsin to digest the bolus and after its done, the<br />
bolus transforms into Chyme and passes into the small<br />
intestine through the Pyloric Sphicnter. The small intestine is<br />
the one that starts absorbing nutrients from the bolus, but<br />
first the intestine need help from the Pancreas and Liver to<br />
break down some substances like Carbs, Proteins, Lipids and<br />
Bile, this happens in the Duodenum part. The pancreas helps<br />
the Duedenum by neutralizing the acid levels of the acids<br />
left by the stomach on the bolus. Next is the Jejunum which<br />
absorbs the nutrients left by the Duedenum, and the Illeum<br />
does the exact same thing but it absorbs B12 and Bile Salts<br />
specifically. The liver is in charge of processing every nutrient<br />
that the small intestine absorbed and produce bile, then the<br />
Gallbladder stores the bile produced. The last part of this<br />
process consists on extracting the water and vitamin B12<br />
and K from the solid wastes before they get eliminated<br />
through the anus, the organ that completes this action is<br />
called the Large Intestine or Colon<br />
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