1. The Nervous System
Suffixes
Lauren Fowlkes

2. Suffixes
This presentation will explore the suffixes of –algesia
and –esthesia
-algesia is the suffix meaning pain or sensitivity to
pain.
-esthesia means feeling or sensation.

3. -Algesia
Common Terms
Analgesia- the absence of pain or
sensation
Hypalgesia- a decreased
sensitivity to painful stimuli
Hyperalgesia- an increased
sensitivity to painful stimuli
Neuroleptanalgesia- a state of
quiescence, altered awareness
and analgesia produced by the
combination of opioid and
neuroleptic

4. -Esthesia
Common Words
Anesthesia- a lack of sensations
Hyperesthesia- the condition of
excessive sensations
Kinesthesia- the sense that detects
the body position, weight, or
movement
Paresthesia- an abnormal sensation
such as burning or itching
Synesthesia- stimulation of one
sensory or cognitive pathway leads to
automatic, involuntary experiences in
a second sensory or cognitive
pathway

5. Anesthesia and
Analgesia
Anesthesia and Analgesia are by far the most common
terms out of those listed on the previous slides.
Anesthesia and analgesia form a very important medical
specialty that we call anesthesiology. A variety of drugs
are used to block patients pain receptors, memory,
responsiveness and/or muscle control. This specialty
allows patients to undergo surgery or other procedures
without experiencing the pain and discomfort they
typically would in absence of these pharmacological
agents. Anesthesia and analgesia have advanced
medicine substantially.

6. Types of Anesthesia
Local Anesthesia- inhibits sensory reception on a specific
location of the body (ex. Tooth or urinary bladder)
Regional Anesthesia- inhibits sensation in a larger area of
the body by blocking nerve impulses from that part of the
body and the spinal cord
General Anesthesia- inhibits sensory, motor and
sympathetic nerve transmission at the level of the brain,
which produces lack of sensation and unconsciousness

7. Anesthetics
Anesthetics are drugs that produce a loss of
sensation or consciousness.
Lidocaine
Xylocaine
Propofol
Diprivan
Procaine
Sevoflurane
Desflurane
Isoflurane

8. Analgesics
Analgesics are medications that treat
pain. They are split into two groups,
non-narcotic and narcotics.
Non-narcotics are used for minor to
moderate pain. They include aspirin,
acetaminophen and ibuprofen.
Narcotics are used for severe pain relief
and patients must use caution because
they are addictive. They are collectively
called opiates and some common ones
are morphine, oxycodone, Demerol and
OxyContin.