3. Anatomy
• Study of structures of body parts and their
relationships to one another.
– It is how the body is organized.
• Subdivisions:
– Gross or macroscopic (e.g., regional, systemic, and
surface anatomy)
– Microscopic (e.g., cytology and histology)
– Developmental (e.g., embryology)
4. Anatomy
• Structure of body parts and their relationship
to one another:
• There are different levels and ways you can
study Anatomy.
– Gross Anatomy – Study of large body structures
visible to the naked eye such as organs.
• Gross Anatomy is separated by different regions so you
can study the gross anatomy of different organ systems
or different regions of the body.
6. Anatomy
• There are different levels and ways you can
study Anatomy:
– Microscopic Anatomy – structures too small to be
seek with the naked eye.
– Microscopic Anatomy breaks down into Cytology
and Histology.
• Cytology – The anatomy of specific cells (Nerve cell,
muscle cell)
• Histology – The anatomy of specific tissues (Nervous
tissue, muscle tissue)
7. Anatomy
• There are different levels and ways you can
study Anatomy:
– Developmental Anatomy – structural changes that
occur in the body throughout the life span
• Subdivision is Embryology – developmental changes
that occur before birth
8. Physiology
• Physiology – function of the body
– How does the body work and carry out its
activities.
– Physiology is understood by looking at the
anatomy of a structure.
• You separate the different branches of
physiology based on the different organ
systems.
– Cardiovascular Physiology, Neurophysiology…
9. Principle of Complementarity
• Anatomy and physiology are inseparable
– Function always reflects structure
– What a structure can do depends on its specific
form.
10. The Human Body
• Humans are Multicellular Organisms made of
multiple Organ Systems that work together.
– There are living things that are only a single cell
large.
– The Cell is the smallest unit that can work to
sustain all of life’s jobs.
13. Cells
• Cells vary in shape and
function in multicellular
organisms.
– Neurons are cells of the nervous
system that are long and
conductive – used to send
messages throughout the body.
– Muscle cells stretch and contract
in order to allow movement in
the body – work as a pulley
system.
14. Cells group together into tissues
• Tissues are groups of similar cells tht have a
common function.
– There are four tissue types in the body
1. Epithelial Tissue
2. Muscle Tissue
3. Connective Tissue
4. Nervous Tissue
15.
16. Organs are made up of tissues
• An organ is a discrete structure composed of
at least two tissue types (Most organs are
made of all four tissue types).
– Blood vessels have a connective tissue outer layer,
a muscle inner layer, and an epithelial lumen
17. Humans are Organisms made up of
multiple Organ Systems
• An Organ System is composed of multiple
Organs working together.
– The Heart and its associated blood vessels are
organs that make up the Cardiovascular System
– Your Kidneys, Bladder, Ureters, and Urethra make
up your Urinary system.