Chapter 10 Vocab Part 1 Flashcards
Acetylcholine (!!)
Neurotransmitter chemical released at ends of nerve cells
Afferent nerve (!!)
Carries messages TOWARD the brain and spinal cord
Akinetic
Pertaining to loss of absence of voluntary movement
Analgesia (!!! SG)
Absence of sensitivity to pain
Anencephaly
Congenital condition of partial or complete absence of brain matter
Anesthesia (!!! SG)
Lack of feeling or sensation
Aphasia
Inability to speak; language function is impaired due to injury to the cerebral cortex
Apraxia
Inability to perform purposeful acts or manipulate objects
Arachnoid membrane (!!)
Middle layer of the meninges (3 membranes) that surround the brain and spinal cord
Astrocyte (!!)
Glial (neuroglial) cell that transports salts and water from capillaries
Ataxia
Without coordination
Autonomic Nervous System
Nerves that control involuntary body functions of muscles, glands, and internal organs
Axon
Microscopic fiber that carries a nervous impulse along a nerve cell
Blood-brain barrier (!!)
Protective separation between the blood and brain cells that keeps substances (drugs) from penetrating capillary walls and entering the brain
Bradykinesia
Slow movement