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Nervous and Endocrine
Nervous and endocrine systems
32
Biology
Undergraduate 1
12/03/2009

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Term
Neurons
Definition
Nerve cell that characteristically has three parts: a cell body, dendrites, and an axon.
Term
Neuroglia
Definition
Nonconducting nerve cells that are intimately associated with neurons and function in a supportive capacity.
Term
Alzheimers Disease
Definition
Brain disorder characterized by a general loss of mental abilities.
Term
Parkinson Disease
Definition
Progressive deterioration of the central nervous system due to a deficiency in the neurotransmitter dopamine.
Term
Multiple Sclerosis
Definition
Disease in which the outer, myelin layer of nerve fiber insulation becomes damaged, interfering with normal conduction of nerve impulses.
Term
Meningitis
Definition
Inflammation of the meninges, the membranes that surround the brain and spinal cord.
Term
Oxytocin
Definition
Hormone release by the posterior pituitary that causes contraction of the uterus and milk letdown.
Term
Endocrine Glands
Definition
Organ system involved in the coordination of body activities; uses hormones as chemical signals secreted into the bloodstream.
Term
Diabetes Mellitus
Definition

Condition characterized by a high blood glucose level and the appearance of glucose in the urine due to a deficiency of insulin production or inability of cells to respond normally to insulin.

Term
Diabetes Insipidus
Definition

A disorder caused by insufficient secretion of antidiuretic hormone by the posterior pituitary gland, causing production of large amounts of dilute urine and excessive thirst.

Term
Cushing Syndrome
Definition
Mass of white matter within the brain composed of nerve fibers connecting the right and left cerebral hemispheres.
Term

 

Brain Stem

Definition

Portion of the brain consisting of the medulla oblongata, pons, and midbrain.

Term
Frontal lobe
Definition

The most ventral of the lobes. Serves to regulate and mediate higher intellectual functions.

Term
Lobes
Definition
Subdivision of a bodily organ or part.
Term
Temporal Lobe
Definition
Lies inferior to the frontal and parietal lobes. Contains the auditory cortex which is responsible for hearing. It is also the site for seizure activities
Term
Parietal Lobe
Definition
Integrates sensory information from different areas.
Term
ADH
Definition
ADH stands for antidiuretic hormone is a peptide molecule that is released by the pituitary gland.
Term
Pituitary Dwarfism
Definition
A condition characterized by normal proportions by small stature; caused by inadequate growth.
Term
Cretinism
Definition
Conditions resulting from improper development of the thyroid in and infant. Characterized by stunted growth and mental retardation
Term
Myxedema
Definition

A disease caused by decreased activity of the thyroid gland in adults.

Term
Tetany
Definition
Severe twitching caused by involuntary contraction of the skeletal muscles due to a calcium imbalance.
Term
Goiter
Definition

Abnormally enlarged thyroid gland. Can result from under or over production of a hormone.

Term
Impulse
Definition
An instinctive move.
Term
Hormone
Definition

Chemical signal produced in one part of the body that controls the activity of other parts.

Term
Cerebrum
Definition
Main part of the brain consisting of two large masses, or cerebral hemispheres; the largest part of the brain in mammals.
Term
Cerebellum
Definition
Part of the brain located posterior to the medulla oblongata and pons that coordinates skeletal muscles to produce smooth, graceful motions.
Term
Occipital Lobe
Definition
Contains the visual center of brain.
Term
Cerebral Hemisphere
Definition
One of the large, paired structures that together constitute the cerebrum of the brain.
Term
Brain
Definition

portion of the vertebrate central nervous system that is enclosed within the cranium, continuous with the spinal cord, and composed of gray matter and white matter. It is the primary center for the regulation and control of bodily activities, receiving and interpreting sensory impulses, and transmitting information to the muscles and body organs. It is also the seat of consciousness, thought, memory, and emotion.

Term
Spinal Cord
Definition

Part of the central nervous system; the nerve cord that is continuous with the base of the brain and housed within the vertebral column.

Term
Meninges
Definition

Protective membranous coverings of the central nervous system.

Term
Central Nervous System
Definition

Portion of the nervous system consisting of the brain and spinal cord.

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