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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 />

4


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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<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong>


. 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 />

<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong> 8


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 />

9<br />

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 />

<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong><br />

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 />

<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong> 10


<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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<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong>


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 />

<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong> 12


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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<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong>


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 />

<strong>THE</strong> <strong>MONTHLY</strong> <strong>MED</strong> 14

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