Definitions Flashcards

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1
Q

Conscious proprioception

A

The conscious awareness of body position and movement of body segments. It is regulated by the lemniscal system through pathways that begin in joint receptors and and in the parietal lobe of the cerebral cortex; it enables the cortex to refine voluntary movements.

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2
Q

Segment

A

One of the constituent parts into which a body, entity, or quantity is divided or marked off by or as if by natural boundaries.

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3
Q

Proximal

A

Toward the point where a limb or bone is attached to the body; situated close to the center or midline of the body

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4
Q

Contracture

A

An abnormal, often permanent shortening, as of a muscle or scar tissue, that results in the distortion and or deformity, especially of a joint in the body. Shortening of a muscle or tendon because of disease or injury and resulting in distortion and discomfort. An abnormal persistent flexing of a muscle or tendon at a joint, usually caused by a shortening or scarring of tissue.

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5
Q

Acute

A

Of abrupt onset or short duration; referring to a disease of sudden onset and brief course, not chronic, sometimes loosely used to mean severe; short, sharp and quickly over.

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6
Q

Proprioceptive deficit

A

A defect of proprioception in which the Animal acts as though it does not know where it feet are (in contrast to a cerebellar defect when the feet do not end up where the Animal appears to intend that they should go).

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7
Q

Proprioception

A

A collection of different feedback systems in the body.

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8
Q

Symptoms of impaired proprioception

A

Clumsiness or poor body control

Poor control over posture (slumping or having trouble holding head up)

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9
Q

Dysfunction

A

Abnormal or impaired functioning of a bodily system or organ

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10
Q

Distal

A

Situated farthest from the center, median line, or point of attachment or origin.

Toward the extremities of the body

Away from the point of origin of a limb or other structure

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11
Q

Morbidity

A

A diseased condition or state

An illness or an abnormal condition or quality

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12
Q

Biomechanics

A

The study of the mechanics of a living body, especially of the forces exerted by muscles and gravity on the skeletal structure.

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13
Q

Lemniscal (adj.) / lemniscus

A

A band of fibers and especially nerve fibers

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14
Q

Parietal lobe

A

The middle division of each cerebral hemisphere that contains an area concerned with bodily sensations

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15
Q

Paraspinal

A

Adjacent to the spine

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16
Q

Mechanoreceptor

A

Any sensory nerve ending that responds to mechanical stimuli, such as touch, pressure, sound, and muscular contractions.

Mechanoreceptors detect sound and touch and initiate balance and stretching. They send this information to the auditory cortex in the temporal lobe.

17
Q

Compensation

A

The automatic movements made by the body to maintain balance.

The improvement of any defect by the excessive development or action of another part of the same structure.

The act of compensating.

18
Q

Cerebral cortex

A

The largest region of the mammalian brain and plays a key role in memory, attention, perception, cognition, awareness, thought, language, and consciousness.[1] The cerebral cortex is the most anterior (rostral) (outer layer of the…) brain region and consists of an outer zone of neural tissue called gray matter, which contains neuronal cell bodies. It is also divided into left and right cerebral hemispheres by the longitudinal fissure, but the two hemispheres are joined at the midline by the corpus callosum.[2]

19
Q

Chemoreceptors

A

Chemoreceptors detect smell and taste, and then send this information to the somatosensory cortex in the parietal lobe of the brain.

20
Q

Electromagnetic receptors

A

Electromagnetic receptors detect visible light, and then send this information to the visual cortex in the occipital lobe.

21
Q

Thermoreceptors

A

Thermoreceptors detect hot and cold temperatures, and send this information to the somatosensory cortex in the parietal lobe.

22
Q

Pain receptors

A

Pain receptors detect pressure, chemicals, and severe heat. They send this information to the somatosensory cortex in the parietal lobe.

23
Q

Somatosensory cortex

A

The somatosensory cortex receives all sensory input from the body. Cells that are part of the brain or nerves that extend into the body are called neurons. Neurons that sense feelings in our skin, pain, visual, or auditory stimuli, all send their information to the somatosensory cortex for processing.