Bumping Your Toe Case

p.483 The cell bodies of primary-order neurons or pain-transmitting neurons reside in the dorsal root ganglia just lateral to the spine along the sensory pathways that penetrate the posterior part of the cord. The second order neurons are found in the dorsal horn (p.484) Most nociceptive information tranvels by means of ascending columns in the lateral spinothalamic tract (also called the anterolateral funiculus). The principal target for nociceptive afferents is the thalamus (the major relay station of sensory information in general) Third order neurons project to portions of the CNS involved in the processing and interpretation of pain, the chief areas being the reticular and limbic systems and cerebral cortex. (p 484)

The perception of pain and the emotions that control intensity differ in individuals. Since feeling pain is somewhat adaptive, when one experiences it, he or she becomes aware of an injury and tries to remove oneself from the source that caused the injury. For this reason, pain is considered neuropathic or inflammatory in nature. Thus, when pain is the outcome from the damage caused to the neurons of the peripheral and central nervous system, then that pain is neuropathic. However, if the pain signals any kind of tissue damage, then the pain is inflammatory in nature. Due to various types of pain, the interpretation of pain by neurons and the source of that pain

This is the stage of the injury and will become the start of the rehabilitation process. When an injury occurs your body reacts immediately to heal it. This is often referred as the primary response mechanism. The main symptoms of primary damaged response are pain, bleeding and also inflammation.

Pain can be categorized as acute or chronic pain. Chronic pain is described as pain that is both long-term and continuous, or is pain that persists after the expected healing time following an injury (British Pain Society, n.d.) Acute pain can provide a warning signal that an illness or injury has occurred. It is defined as pain that lasts less than three months and lessens with healing (Briggs, 2010). Acute pain can then be described in more detail by the following categories; somatic, visceral and neuropathic pain. Somatic pain is a localized pain described as sharp, burning, dull, aching or cramping. It is seen with incisional pain and orthopedic injuries or procedures. Visceral pain refers to an injury to the organs and linings of the body cavities. It produces diffuse pain and can be described as splitting, sharp or stabbing. This is pain that be described from patients with appendicitis, pancreatitis or intestinal injuries and illnesses. Injuries to the nerve fibers, spinal cord and central nervous system cause neuropathic pain. This pain can be described as shooting, burning, fiery, sharp, and as a painful numbness. This can be seen after an

Pain not only involves the physical reaction to damaged tissue, but also involves an emotional and cognitive response by the person experiencing the pain (Backer, 1994). A person's prior experience will influence how pain is managed. Pain is a signal that something is not

Acute pain is a sudden onset of an unpleasant sensation and is usually sharp in quality. It serves to alert the body that something is wrong. There are many factors that could cause acute pain such as surgery, broken bones, dental work, burns, cuts, labor, or childbirth to name a few (Acute, 2014). Pain is the response triggered by the nervous system in response to tissue damage or damage to the body. Microscopic pain receptors, called nociceptor, within the skin register this occurrence and become active and begin sending electrical signals through, depending on the type of pain, either A-delta or C nerve fibres . This signal is passed from neuron to neuron through the spinal cord across junctions called synapses. Eventually this signal reaches

Pain receptors in the skin sense pain and send signals through the spinal cord. Once the signals arrive at the brain, several parts of the brain begin to process it instead of just one part.

In fact, these signals are what caused us to feel pain. They are sent through the nerves to the brain in response to getting injured. Then the brain processes it as sharp or dull pain. There are many words that can describe pain. Acute and chronic are just a few of many other categories that pain can fall in. Acute pain only last for a moment, whereas chronic can last for weeks. Both are associated with physical pain.

Conduction occurs when that action potential transmits along the periphery up to the cell bodies in the dorsal root ganglion in the spinal cord. (2) The action potential from Linda’s ankle injury is travelling up the periphery via the primary afferent nociceptor.

‘Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage’ (International association for the study of pain 2014). Pain can be made up of complex and subjective experiences. The experience of pain is highly personal and private, and can not be directly observed or measured from one person to the next (Mac Lellan 2006). According to the agency for health care policy and research 1992, an individuals self-report of pain is the most reliable indicator of its presence. This is also supported by Mc Caffery’s definition in 1972, when he said ‘Pain is whatever the experiencing patient says it is, existing whenever he says it does’.

our bodies and vice versa. For example, a tack puncturing your foot (a physical event)

Pain, as defined by the International Association for the Study of Pain (IASP), is an “unpleasant sensory and emotional experience associated with actual or potential tissue damage” (IASP 1994; Fishbain et al. 2010). Pain is characterised by perceptive and emotional components. The first component is the nociception by which the perception of a negative and detrimental stimulus for the organism is transmitted to the CNS. The emotional component, entirely beholder, represents the psychic perception of pain that can be more or less intense as function of the emotional state of the individual.

Pain is something that connects all of us. From birth to death we can identify with each other the idea and arguably the perception of it. We all know we experience it, but what is more important is how we all perceive it. It is known that there are people out there with a ‘high’ pain tolerance and there are also ones out there with a ‘low’ pain tolerance, but what is different between them? We also know that pain is an objective response to certain stimuli, there are neurons that sense and feel pain and there are nerve impulses that send these “painful” messages to the brain. What we don’t know is where the pain

Foot injuries are very common in athletics as well as in everyday life. It’s very debilitating to have a foot injury since we use our feet in all of our daily activities. Research published in "Medicine and Science in Sports and Exercise” indicates that the average adult takes between 5,000 to 7,000 steps a day. Some sports require the most dedicated athletes spend multiple hours a day pounding their feet on the turf or pavement. Most injuries that occur in the foot require a person to try and stay off of it or completely immobilize it. Since this is very difficult for a person to do, a large percentage of foot injuries often have a very high chance of reoccurring. The severity of some injuries that can be deceiving as well. Often times a nagging pain is ignored and eventually becomes a much bigger problem.

The International Association for the Study of Pain defines pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage” (1979). Pain is actually the culprit behind warranting a visit to a physician office for many people (Besson, 1999). Notoriously unpleasant, pain could also pose a threat as both a psychological and economic burden (Phillips, 2006). Sometimes pain does happen without any damage of tissue or any likely diseased state. The reasons for such pain are poorly understood and the term used to describe such type of pain is “psychogenic pain”. Also, the loss of productivity and daily activity due to pain is also significant. Pain engulfs a trillion dollars of GDP for lost work time and disability payments (Melnikova, 2010). Untreated pain not only impacts a person suffering from pain but also impacts their whole family. A person’s quality of life is negatively impacted by pain and it diminishes their ability to concentrate, work, exercise, socialize, perform daily routines, and sleep. All of these negative impacts ultimately lead to much more severe behavioral effects such as depression, aggression, mood alterations, isolation, and loss of self-esteem, which pose a great threat to human society.