Homeostasis & Medical Terms

Homeostasis
I can define homeostasis as the ability to keep your internal conditions stable even though your outside world is continuously changing. It is a dynamic state of equilibrium, or balance, in which internal conditions vary, but always within relatively narrow limits. Maintaining homeostasis is complicated. Like when you are outside and the weather is cold your internal body temperature will change but will then become stable and control itself. Then if you go inside a nice warm place your outside world continuously changed but your body temperature was still stable.

Negative Feedback
Most homeostatic control mechanisms are negative feedback mechanisms or loops. In negative feedback systems, the output that shuts off the original stimulus or reduces its intensity. If your mechanisms get or overwhelmed and destructive positive feedback will take over (homeostatic imbalance).

Positive Feedback
Positive feedback mechanisms , the result or response enhances the original stimulus so that the activity (output) is accelerated. Mechanism is positive because the change that occur proceeds in the same direction as the initial disturbance, causing the variable to move further from its original value or range.

Medical Terms:
Anterior (ventral) - Toward or at the front of the body; in front of  (the breastbone is anterior to the spine)
Some anterior body regions are: ear, nose, mouth, neck, shoulder, armpit, breast, arm, the front of the elbow, forearm abdomen, the reproductive organs, wrist, palm, finger, ankle.
Inferior (caudal) - Away from the head end or towards the bottom of the body towards the feet. (the navel is inferior to the chin)
Posterior (dorsal) - Toward or at the back of the body; behind (the heart is posterior to the breastbone).
Superior (cranial) - Toward the head end or upper part of the body; above (the skull is superior to the ribs)
Distal - Farther from the origin of a body part or the point of attachment of a limb to the body trunk. example: The knee is distal to the thigh.
Medial- Towards the middle of the body. (from your side towards your belly button)
Lateral - Away from the mid-line away from the on the outer side of the body. (arms are lateral to the chest)
Proximal- Closer to the origin of a body part or the point of attachment of a limb to the body trunk. (elbow is proximal to the wrist)

Body Planes
Transverse plane cuts the body in half horizontally dividing the superior part and the inferior parts of the body.
Frontal plane lies vertically dividing the body into anterior and posterior parts
Sagittal plane cuts the body from top to bottom, dividing it into left and right portions.

The Organization Of The Body

Chemicals form to make molecules ----> Cells are made up of molecules ----> Tissues are made up of similar types of cells ----> Organs are made up of different types of tissues ----> Organ system are groups of organs that work together closely ----> Organismal is made up of many groups of organs.