The basics part 2 Flashcards
The study of how the body functions
Physiology
The branch of biology that deals with the
normal functions of living organisms and their
parts.
Physiology
Think of it as a series of ranges, of blood
pressure, temperature, blood oxygen levels,
and blood calcium levels that the body must
maintain for functioning.
Homeostasis
If these levels move outside the given range
the body will attempt to bring it back to
optimal range.
Homeostasis
the process that reverses the
direction movement away from homeostasis.
Negative Feedback
the process that the
body uses to increase movement away from
homeostasis.
Positive Feedback
Chemical for contraction
prostaglandins
is a cycle of
events in which the status of a body condition is
monitored, evaluated, changed, re-monitored,
reevaluated, and so on.
Feedback system or feedback loop
is a body structure that monitors
changes in a controlled condition and sends
input to a control center. This pathway is
called an afferent pathway, since the
information flows toward the control center.
Receptor
in the body, for example, the
brain, sets the narrow range or set point within
which a controlled condition should be
maintained, evaluates the input it receives
from receptors, and generates output
commands when they are needed. Output from
the control center typically occurs as nerve
impulses, or hormones or other chemical signals. This pathway is called an efferent
pathway, since the information flows away
from the control center.
Control center
is a body structure that receives
output from the control center and produces a
response or effect that changes the controlled
condition.
Effector
The study of disease
Pathology
Abnormally functioning organs or systems
Disease
having onset, severe symptoms, and a
short duration
acute
having slow progression or duration.
chronic
are risk factors or activities
that people participate in that play a large role in a
person’s overall health status.
Predisposing factors
Predisposing factors
Age, gender, lifestyle, environment and heredity
are diseases caused by
microorganisms.
Infections
are those present at
birth.
Congenital disorders
are diseases caused by
inherited genes, which are passed to
children by their parents.
Genetic disorders
- is a
genetic disorder that causes high
cholesterol and increased fat levels in the
blood.
Familial combined hyperlipidemia
are caused by
an event that may occur while the child is
developing in the womb, at birth, or after
the child is born.
Developmental disorders
The damage to the brain may have occurred
prenatally (before birth), perinatally (during birth), or postnatally (after birth)
is a combination of the genetic
material from both parents
Heredity
can be measured, (objective signals)
Signs
relative to the
patient that indicates something is wrong. (Non -
measurable) (subjective signals)
Symptoms
the body’s response to injury
and disease
• Body’s response to invasion
• Redness, heat swelling, pain are indicators.
Inflammation
symptom of physical suffering or
distress clue to illness
• Serves as a defense mechanism to warn the
body.
Pain
caused by the pathogens
which are a disease-causing agent
Infectious Disease
Caused by fungi, bacteria and viruses
Infectious Disease
contagious and
infectious disease
Communicable Disease
are
infectious diseases that are caused by
pathogens but are not contagious
Non-Communicable Disease