back (redirected from back on)

back (bak) the posterior part of the trunk from the neck to the pelvis.

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angry back  excited skin syndrome.

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back (bk)

n.

1. The posterior portion of the trunk of the human body between the neck and the pelvis; the dorsum.

2. The backbone or spine.

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back,

n the posterior or dorsal portion of the trunk of the body between the neck and the pelvis. The skeletal portion of the back includes the thoracic and lumbar vertebrae and both scapulae. The nerves that innervate the muscles of the back include some branches of the dorsal primary divisions of the spinal nerves, the lateral branches of the dorsal primary division of the middle and lower cervical nerves, and some branches of the ventral primary division of the spinal nerves.

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back

see also dorsum.

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back arched upwards

humped back posture as in subacute abdominal pain.

cold back

horse resents the saddle being placed in position and the girth tightened. May be due to pain in back or to disinclination to wear the saddle.

hollow back

the natural concave line of the backbone is exaggerated.

back muscle necrosis

is characterized by pain and swelling over the backs of pigs. The pigs are reluctant to move and there is arching or lateral flexion of the spine. Subsequently there is atrophy of the muscles. See also porcine stress syndrome.

back pain

pain expressed when pressure is applied to the back. Spondylosis, injury to dorsal spinous processes and muscle sprain are amongst the common causes. A special area of interest in the horse, because of its importance in restricting movement and causing abnormalities of gait.

back raking

manual removal of the feces from the rectum. Performed often in the preliminaries to pregnancy diagnosis in mares and cows. Carried out cosmetically in horses and especially elephants just before a circus or other performing act.

back Shu points

acupuncturese for association points along the back.