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| This glossary contains: 19186 medical terms |
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Brainstem auditory evoked potentials
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Brainstem auditory evoked potentialsSee: ABR test.
SIMILAR TERMS--------------------------------------
Braille system
A system of raised-dot writing devised by Louis Braille (1809-1852) for the blind in which each letter is represented as a raised pattern that can be read by touching with the fingers.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
Brain anthrax
Anthrax infection of the central nervous system (the spinal cord and brain) and meninges (the membranes covering the brain and spinal cord.
Brain attack
Also called "stroke". Happens when brain cells die because of inadequate blood flow.
Brain biopsy
Biopsy of the brain. Removal of a small piece of tissue from the brain for diagnostic purposes.
Brain cancer
Cancer of the central information processing center of the body. Tumors in the brain can be malignant or benign, and can occur at any age. Only malignant tumors are cancerous. Primary brain tumors cancer initially forms in the brain tissue. Secondary brain tumors cancers are cancers that have spread to the brain tissue (metastasized) from elsewhere in the body. Secondary brain cancer is named for the organ or tissue in which the cancer begins, such as lung cancer with secondary brain metastasis.
Brain Death
Brain damage that is so severe and extensive that the brain cannot recover. Breathing has stopped, but the circulation may still be continuing because of artificial ventilation. Donor organs can only be taken from people who are declared brain dead.
Brain stem
The stemlike part of the brain that is connected to the spinal cord. Or conversely, the extension of the spinal cord up into the brain. The brain stem is small but important. It manages messages going between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate, and blood pressure. The brain stem also controls consciousness and determines whether one is awake or sleepy.
Brain stem evoked response
A test for evaluating hearing loss in certain circumstances.ÿ Electrodes attached to the skull monitor the brain?s response to sound.
Brain stem glioma
A tumor located in the part of the brain that connects to the spinal cord (the brain stem). It may grow rapidly or slowly, depending on the grade of the tumor.
Brain tumor
A brain tumor is any mass created by an abnormal and uncontrolled growth of cells either found in the brain (neurons, glial cells, epithelial cells, myelin producing cells, etc.) or spread from elsewhere (metastasis). Brain tumors are usually located in the posterior third of the brain in childhood and in the anterior two-thirds of the brain in adulthood.
Brain ventricle
One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord.
Brain, fornix of the
An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest part of the brain and consists of two hemispheres separated by a deep longitudinal fissure). Each fornix -- there are two -- in the brain is an arched tract of nerves.
Brainerd diarrhea
A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day), lasting 4 weeks or more, and resolving spontaneously. The disease is of unknown causation and appears in outbreaks or as sporadic cases.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Brainstem implant
A type of hearing aid that bypasses the cochlea in the middle ear and the auditory nerve and is implanted in the brainstem. This type of implant helps individuals who cannot benefit from a cochlear implant because the auditory nerves are not working.
PREVIOUS AND NEXT TERMS--------------------------------------
Brain stem
The stemlike part of the brain that is connected to the spinal cord. Or conversely, the extension of the spinal cord up into the brain. The brain stem is small but important. It manages messages going between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate, and blood pressure. The brain stem also controls consciousness and determines whether one is awake or sleepy.
Brain ventricle
One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord.
Brain, fornix of the
An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest part of the brain and consists of two hemispheres separated by a deep longitudinal fissure). Each fornix -- there are two -- in the brain is an arched tract of nerves.
Brainerd diarrhea
A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day), lasting 4 weeks or more, and resolving spontaneously. The disease is of unknown causation and appears in outbreaks or as sporadic cases.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Brainstem auditory evoked potentials
Brainstem implant
A type of hearing aid that bypasses the cochlea in the middle ear and the auditory nerve and is implanted in the brainstem. This type of implant helps individuals who cannot benefit from a cochlear implant because the auditory nerves are not working.
Branchial cleft cyst
Also called a branchial cyst, this is a cavity that is a remnant from embryologic development present at birth in one side of the neck just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognized until adolescence as it enlarges its oval shape. Sometimes it develops a sinus or drainage pathway to the surface of the skin from which mucus can be expressed. Total surgical excision is the treatment of choice. Recurrence is not expected.
Branchial cyst
Also called a branchial cleft cyst, this is a cavity that is a remnant from embryologic development present at birth in one side of the neck just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognized until adolescence as it enlarges its oval shape. It may develop a sinus or drainage pathway to the surface of the skin from which mucus can be expressed. Total surgical excision is the treatment of choice. Recurrence is not expected.
Brazelton newborn test
A widely used test of the newborn baby as to their neurologic status and developmental progress.
BRCA breast cancer gene
One of several genetic mutations linked to breast cancer and ovarian cancer. There is now convincing evidence that every woman with a BRCA mutation is at high risk for breast cancer, irrespective of whether she has a family history of breast cancer or not. By age 80, a woman with a BRCA mutation has about an 80% chance of developing breast cancer. BRCA1 and BRCA2 increase the risk of ovarian cancer 54% and 23%, respectively. Mutations in BRCA1 or BRCA2 account for 5-10% of all breast cancer which translates into 10-20,000 new cases of breast cancer in the US and many more around the world every year.
SIMILAR TERMS--------------------------------------
Braille system
A system of raised-dot writing devised by Louis Braille (1809-1852) for the blind in which each letter is represented as a raised pattern that can be read by touching with the fingers.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
Brain anthrax
Anthrax infection of the central nervous system (the spinal cord and brain) and meninges (the membranes covering the brain and spinal cord.
Brain attack
Also called "stroke". Happens when brain cells die because of inadequate blood flow.
Brain biopsy
Biopsy of the brain. Removal of a small piece of tissue from the brain for diagnostic purposes.
Brain cancer
Cancer of the central information processing center of the body. Tumors in the brain can be malignant or benign, and can occur at any age. Only malignant tumors are cancerous. Primary brain tumors cancer initially forms in the brain tissue. Secondary brain tumors cancers are cancers that have spread to the brain tissue (metastasized) from elsewhere in the body. Secondary brain cancer is named for the organ or tissue in which the cancer begins, such as lung cancer with secondary brain metastasis.
Brain Death
Brain damage that is so severe and extensive that the brain cannot recover. Breathing has stopped, but the circulation may still be continuing because of artificial ventilation. Donor organs can only be taken from people who are declared brain dead.
Brain stem
The stemlike part of the brain that is connected to the spinal cord. Or conversely, the extension of the spinal cord up into the brain. The brain stem is small but important. It manages messages going between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate, and blood pressure. The brain stem also controls consciousness and determines whether one is awake or sleepy.
Brain stem evoked response
A test for evaluating hearing loss in certain circumstances.ÿ Electrodes attached to the skull monitor the brain?s response to sound.
Brain stem glioma
A tumor located in the part of the brain that connects to the spinal cord (the brain stem). It may grow rapidly or slowly, depending on the grade of the tumor.
Brain tumor
A brain tumor is any mass created by an abnormal and uncontrolled growth of cells either found in the brain (neurons, glial cells, epithelial cells, myelin producing cells, etc.) or spread from elsewhere (metastasis). Brain tumors are usually located in the posterior third of the brain in childhood and in the anterior two-thirds of the brain in adulthood.
Brain ventricle
One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord.
Brain, fornix of the
An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest part of the brain and consists of two hemispheres separated by a deep longitudinal fissure). Each fornix -- there are two -- in the brain is an arched tract of nerves.
Brainerd diarrhea
A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day), lasting 4 weeks or more, and resolving spontaneously. The disease is of unknown causation and appears in outbreaks or as sporadic cases.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Brainstem implant
A type of hearing aid that bypasses the cochlea in the middle ear and the auditory nerve and is implanted in the brainstem. This type of implant helps individuals who cannot benefit from a cochlear implant because the auditory nerves are not working.
PREVIOUS AND NEXT TERMS--------------------------------------
Brain stem
The stemlike part of the brain that is connected to the spinal cord. Or conversely, the extension of the spinal cord up into the brain. The brain stem is small but important. It manages messages going between the brain and the rest of the body, and it also controls basic body functions such as breathing, swallowing, heart rate, and blood pressure. The brain stem also controls consciousness and determines whether one is awake or sleepy.
Brain ventricle
One of a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord.
Brain, fornix of the
An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest part of the brain and consists of two hemispheres separated by a deep longitudinal fissure). Each fornix -- there are two -- in the brain is an arched tract of nerves.
Brainerd diarrhea
A syndrome characterized by the acute onset of watery nonbloody diarrhea (3 or more loose stools per day), lasting 4 weeks or more, and resolving spontaneously. The disease is of unknown causation and appears in outbreaks or as sporadic cases.
Brainstem
The lowest part of the brain which merges with the spinal cord and provides the major route by which the upper realms of the brain send information to, and receives information from, the spinal cord and peripheral nerves. The brainstem consists of the medulla oblongata, midbrain, and pons. All but two of the 12 cranial nerves originate in the brainstem. The brainstem influences basic processes such as alertness, breathing, blood pressure, and heart rate.
Brainstem auditory evoked potentials
Brainstem implant
A type of hearing aid that bypasses the cochlea in the middle ear and the auditory nerve and is implanted in the brainstem. This type of implant helps individuals who cannot benefit from a cochlear implant because the auditory nerves are not working.
Branchial cleft cyst
Also called a branchial cyst, this is a cavity that is a remnant from embryologic development present at birth in one side of the neck just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognized until adolescence as it enlarges its oval shape. Sometimes it develops a sinus or drainage pathway to the surface of the skin from which mucus can be expressed. Total surgical excision is the treatment of choice. Recurrence is not expected.
Branchial cyst
Also called a branchial cleft cyst, this is a cavity that is a remnant from embryologic development present at birth in one side of the neck just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognized until adolescence as it enlarges its oval shape. It may develop a sinus or drainage pathway to the surface of the skin from which mucus can be expressed. Total surgical excision is the treatment of choice. Recurrence is not expected.
Brazelton newborn test
A widely used test of the newborn baby as to their neurologic status and developmental progress.
BRCA breast cancer gene
One of several genetic mutations linked to breast cancer and ovarian cancer. There is now convincing evidence that every woman with a BRCA mutation is at high risk for breast cancer, irrespective of whether she has a family history of breast cancer or not. By age 80, a woman with a BRCA mutation has about an 80% chance of developing breast cancer. BRCA1 and BRCA2 increase the risk of ovarian cancer 54% and 23%, respectively. Mutations in BRCA1 or BRCA2 account for 5-10% of all breast cancer which translates into 10-20,000 new cases of breast cancer in the US and many more around the world every year.
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This dictionary contains 19186 terms.
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