intro to anatomy
DESCRIPTION
Introduction to Anatomy, Life, Organization, etc.TRANSCRIPT
Introduction to Human
Anatomy and Physiology
● Anatomy – the structure of body parts (also
called Morphology)● Physiology – the function of the body parts, what
they do and how they do it
Definitions
Life - the condition that distinguishes animals and plants from inorganic matter.
Living – alive, not dead or lifeless.Nonliving – inanimate, inactive, not endowed with
life.
These definitions do not tell us what makes something alive!
So, what are the characteristics of life??
What makes something alive?
1. Homeostasis
2. Organization
3. Metabolism
4. Growth
5. Adaptation
6. Response to stimuli
7. Reproduction
Characteristics of Life
● Homeostasis – tendency to maintain a
stable, balanced, internal environment.
Characteristics of Life
● Organization – All things are made of one
or more cells.
Characteristics of Life
● Metabolism – must transform energy by
converting chemicals & energy into
cellular components.
Characteristics of Life
● Growth – Increase in size over time
Characteristics of Life
● Adaptation – ability to change over time
in response to the environment.
Characteristics of Life
Characteristics of Life● Response to stimuli – will react to
environmental factors such as heat,
light, and food availability.
Characteristics of Life● Reproduction – ability to produce more
of the same type of organism.
Is it living?
1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
Is it living?
Is it living?
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
Is it living?
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
Is it living?
Is it living?1. Homeostasis?
2. Organization?
3. Metabolism?
4. Growth?
5. Adaptation?
6. Response to stimuli?
7. Reproduction?
Okay, so now we know how
to tell if something is living
or nonliving…
How is life organized?
Organization
Cells are the basic building blocks of
living things. They contain organelles
and genetic material.
Tissues are groups
of similar cells
organized to work
together.
Examples: epithelial,
muscle, nervous,
and connective.
Organs are structures
made up of several
groups of tissues
working together to
perform a specific
function.
Examples: heart,
lungs, brain, skin, etc.
Organ systems are groups of organs
working together to perform a function.
Examples: digestive, cardiovascular,
respiratory, and nervous systems
Organisms are living things. Some are
single-celled, others are multicellular.
Frequently they have many organ
systems working together.