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1. The Anatomy Times Where is it?
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Edition 1
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Human Body
Organization Organization
Also, the abdomen can be
The human body can be seen divided into 4 quadrants or
at essentially seven levels nine regions. The diagram for
that build together to make that is below.
the next level. The first level
is chemical: their
interactions with atoms and
their combinations into
molecules and
macromolecules. The second
level is microscopic
structures in the cell called
organelles, which are
composed of molecules that Structure and
are specialized to carry out
functions of the cell. That
Function
leads us to the third level
Each structure has a
being the cell, the basic unit
particular size, shape, form
of all life. Cells group
or placement in the body
together in the body to form
that makes it especially
tissues, which is the fourth
efficient at performing a
level. Tissues are collections
unique and specialized
of similar cells that group
activity. Anatomy is the form
together to perform a
and structure of body
specialized task. Two or
parts and we’re they are
more tissues join together to
located. Physiology is how
form an organ, which
those body parts work
performs a specific function Within the axial portion of together.
in the body. The sixth level is the body there are two
groups of organs with a major body cavities. The
unique collective function to dorsal body cavity is the first
form an organ system. one and is located near the
Finally, organ systems work posterior of the body. It
together to create the contains the cranial and
seventh level, an organism. vertebral. They are home to
very fragile organs one being
the brain. The more anterior
and larger is the ventral body
cavity which contains the
thoracic and abdominopelvic
subdivisions. Diagram below:
A diagram of the seven levels of the human
Anatomical Planes
body and its organization

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matter is compartmented
Anatomical planes are what
Directional Terms into cells which are the basic
used to basically divide the unit of life, northing smaller
To help describe the body,
human body into portions. than the cell is alive. Living
directional terms are used to
The names of the things have DNA, protein,
reference different parts of
ways the human body is lipids, and carbohydrates
the body.
divided up are sagittal, mid which help to create the
Directional terms are used to
sagittal, parasagittal, chemical composition. Living
describe the body in the
transverse, and coronal. A things use molecules from
anatomical position which is
sagittal plane divides the the environment and change
the standing
body into two parts that are them to form their own
position. The terms are
essentially dividing one of structures or provide them
Ventral, Dorsal, Anterior,
the parts made from with energy. Metabolism is
Posterior, Superior, Inferior,
the mid sagittal. The the sum of the internal
Medial, Lateral, Proximal,
transverse splits the body change. Responsiveness
Distal, Central, Peripheral,
into superior and inferior. helps living organisms with
Superficial, and Deep. These
The superior part is the the ability to react to
terms describe different
upper and the inferior is the changes in the environment.
sections of the body a
lower. The coronal plane Living organisms go through
bit more detailed than just
divides the body into development which helps
anatomical planes.
anterior and posterior parts. growth, a changing in size
The anatomical planes are through chemical change by
simply there to help changing the form or
understand in simple form. function of the organism.
Living things reproduce
offspring and through
evolution, the genetic
material is passed down
generation to generation.
Life Characteristics
The organization of living
things is much more complex
than the nonliving world
around them, molecules
form organelles, which form
cells and so on as described
in body organization. Living

3. Where is it?
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“amplifies” the reaction. An
Homeostasis example of positive feedback
is when, for instance when
you eat “your stomach
normally secretes a
compound called pepsinogen
that is an inactive enzyme. As
your body converts
pepsinogen to the enzyme
pepsin, it triggers a process
that helps convert other
pepsinogen molecules to
Have you ever lost your
pepsin. This cascade effect
balance when walking? It
occurs and soon your
seems odd that something
stomach has enough pepsin
that is so natural can fall out
molecules to digest proteins”
of order. This happens all the
(Regulation)
time inside of the human
body, and because this
happens so often there
needs to be a resource that
keeps the body’s balance in
check. This resource is called
homeostasis. The inside of
the human body has its own
environment, and when
temperature, nutrients,
or bodily fluid irregularities
occur there are two types of
ways the body reacts to
retain stability: negative
and/or positive feedback.
Negative feedback is the
most common reaction to
maintain balance. The
picture above provides a
great example. When body
temperature increases
negative feedback reacts by
doing something to decrease
the temperature. Negative is
not meant to be a “bad”
reaction, but meant
to solve the situation by
reversing the initial reaction.
Positive feedback is when,
instead of trying to reverse
the situation, the body