ANAPHY BOOK BASED PRELIM REVIEWER Flashcards
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Anatomy
Study of internal and external structures of the body and their relationship to each other
Anatomy
level of organization involves how atoms, such as hydrogen and carbon, interact and combine into molecules.
Chemical Level
the basic structural and functional units of all living organisms.
cell
smaller structures inside cell
organelles
carry out particular functions, such as digestion and movement
organelles
contains hereditary information
nucleus
organelles that manufacture adenosine triphosphate (ATP),
mitochondria
composed of a group of similar cells
and the materials surrounding them
Tissue
four basic tissue types
ECMN (1) epithelial, (2) connective, (3) muscle, and (4) nervous.
composed of two or more tissue
types that perform one or more common functions
ORGAN
group of organs that together perform a common function or set of functions and are therefore viewed as a unit.
ORGAN SYSTEM
THERE ARE ___ MAJOR ORGAN SYSTEM
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consider interactions of the organ systems.
SYTEM PATHOLOGY
any living thing considered
as a whole—whether composed of one cell, such as a bacterium, or of trillions of cells, such as a human
ORGANISM
The most important common feature of all organisms
LIFE
refers to the specific interrelationships among
the parts of an organism and how those parts interact to perform specific functions
ORGANIZATION
Disruption of organized state can result in
loss of functions, or even death.
ability to use energy and to perform vital functions.
METABOLISM
refers to all of the chemical reactions taking place in the cells and internal environment of an organism
METABOLISM
used to rearrange the shape of
molecules
energy
TRUE OR FALSE?
The shape of a molecule determines its function.
T
T OR F
Some changes in molecular shape can allow certain cells to
change shape
T
necessary for other vital functions, such as responsiveness, growth, development, and reproduction
METABOLISM
organism’s ability to sense changes in its
external or internal environment and adjust to those changes.
RESPONSIVENESS
Include actions such as moving toward food or water
and moving away from danger or poor environmental conditions Organisms can also make adjustments that maintain their internal environment
RESPONSIVENESS
Provides protection, regulates temperature,
prevents water loss, and helps produce
vitamin D. Consists of skin, hair, nails, and
sweat glands
Integumentary System
Provides protection and support, allows
body movements, produces blood cells, and
stores minerals and adipose. Consists of bones,
associated cartilages, ligaments, and joints.
Skeletal System
Produces body movements, maintains posture,
and produces body heat. Consists of muscles
attached to the skeleton by tendons
Muscular System
A major regulatory system that detects
sensations and controls movements,
physiological processes, and intellectual
functions.
NERVOUS SYSTEM
A major regulatory system that influences
metabolism, growth, reproduction, and many
other functions. Consists of glands, such as the
pituitary, that secrete hormones.
ENDOCRINE SYSTEM
Transports nutrients, waste products, gases,
and hormones throughout the body; plays
a role in the immune response and the
regulation of body temperature. Consists of
the heart, blood vessels, and blood.
CARDIOVASCULAR SYS
refers to an increase in the size or number of cells, which
produces an overall enlargement of all or part of an organism.
growth
T OR FALSE
the skin of an infant has more cells than the skin of an adult
FALSE
Removes foreign substances from the blood
and lymph, combats disease, maintains tissue
fluid balance, and absorbs dietary fats from
the digestive tract. Consists of the lymphatic
vessels, lymph nodes, and other lymphatic
organs
lymphatic sys
Exchanges oxygen and carbon dioxide
between the blood and air and regulates blood
pH
respiratory sys
Performs the mechanical and chemical
processes of digestion, absorption of
nutrients, and elimination of wastes.
Digestive sys
Removes waste products from the blood and
regulates blood pH, ion balance, and water
balance. Consists of the kidneys, urinary
bladder, and ducts that carry urine
Urinary sys
Produces oocytes and is the site of fertilization
and fetal development; produces milk for the
newborn; produces hormones that influence
sexual function and behaviors
female repro sys
Produces and transfers sperm cells to
the female and produces hormones that
influence sexual functions and behaviors.
male repro sys
changes an organism undergoes
through time, beginning with fertilization and ending at
death
develpment
usually involves growth,
but it also involves differentiation and morphogenesis.
development
involves changes in a cell’s structure
and function from an immature, generalized state to a
mature, specialized state
Differentiation (Development)
is the change in shape of tissues, organs,
and the entire organism
morphogenesis
formation of new cells or new organisms.
reproduction
the existence and maintenance of a
relatively constant environment within the body
homeostasis
t or f?
To achieve homeostasis, the body must actively regulate conditions that are constantly
changing.
t
Changes in our environmental conditions, such as hot or cold outdoor temperatures, are
called
variables
For cells to function normally, the ___, ____, ____,of
their environment must be maintained within a narrow range
volume, temperature, and chemical content
ideal normal value
set point
The body ___ increases and decreases slightly around the set point to produce a
normal range
normal body temperature range is no more than
1 degree Fahrenheit above
normal body temp
98.6 degrees Fahrenheit
Most systems of the body are regulated by
negative feedback
monitor the value of
a variable
receptor
_____ is when any deviation from the set point is made smaller or is resisted; therefore, in a _____-feedback mechanism, the response to the original stimulus results in deviation from the set point, becoming smaller.
negative feedback
3 components of negative feedback
receptor, control center, effector
monitors the value of a variable such as body temperature by detecting stimuli
receptor
such as part of the brain, which determines the set point for the variable and receives input from the receptor about the variable
control center
can adjust the value of the variable when directed
by the control center, usually back toward the set point
effector
a changed variable
stimulus
t/f
the effectors produce their responses
indefinitely and are controlled by negative feedback
false
metabolic pathways, are regulated by what feedback?
negative feedback
are chemical reactions driven by biological
protein catalysts called enzymes
metabolic pathways
mechanisms occur when a response to the
original stimulus results in the deviation from the set point becoming even greater.
positive feedback
Two basic principles about homeostatic mechanisms to
remember are that (1) many disease states result from the failure
of negative-feedback mechanisms to maintain homeostasis and
(2) some positive-feedback mechanisms can be detrimental instead
of helpful.
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individual workstations within the cell
organelles
largest organelle of the cell
nucleus
Cells secreting large amounts of protein
contain well-developed
organelles that synthesize and secrete protein
cells actively transporting substances across their plasma membrane contain highly developed organelles that prouduce
ATP
a large, membrane-bound structure usually located
near the center of the cell
NUCLEUS