Exam 4 A & P 3 Word Scramble
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Term | Definition |
Corticoids | hormones secreted by the three cell layers of the adrenal cortex |
Cretinism | dwarfism caused by hypo-secretion of the thyroid gland |
Cushing's Syndrome | a condition caused by the hypersecretion of glucocorticoids from the adrenal cortex |
Diabetes Insipidus | a condition resulting from hyposecretion of ADH in which large volumes of urine are formed and if left untreated, may cause serious health problems. |
Diabetes Mellitus | a condition resulting when the pancreatic islets secrete too little insulin, resulting in increased levels of blood glucose. (Disturbs carbohydrate, protein, and lipid metabolism.) |
Endocrine | secreting into the blood or tissue fluid rather than into a duct |
Exocrine | secreting into a duct |
Exophthalmos | abnormal protrusion of the eyes. |
Gigantism | condition produced by hypersecretion of growth hormone during the early years of life; results in a child who grows to gigantic size |
Glucocorticoids | hormones that influence carbohydrate, fat, and protein metabolism; secreted by the adrenal cortex. |
Gluconeogenesis | formulation of glucose or glycogen from protein or fat compounds |
Goiter | enlargement of the thyroid gland |
Hormone | substance secreted by an endocrine gland and transported in the blood |
Mineralocorticoids | hormone that influences mineral salt metabolism (electrolyte concentrations); secreted by adrenal cortex; aldosterone is the chief mineralocorticoid |
Myxedema | condition caused by deficiency of thyroid hormone in adults |
Parathyroid Glands | set of glands located on the surface of the thyroid gland |
Prostaglandins | group of naturally occurring fatty acids that affect many body functions |
Target Cells | organ or cell acted on by a particular hormone and responding to it |
Anosmia | complete or partial loss of sense of smell |
Anopia | absence of an eye |
Aqueous Humor | thin, clear watery fluid that fills the space between the cornea and the lens (anterior and posterior chamber). |
Blepharities | inflammation of the eyelid margins |
Choroid | middle, vascular layer of the eye |
Cochlea | coiled tube in the inner ear |
Conjunctivitis | inflammation of the conjunctiva |
Cornea | the transparent front part of the eye that covers the iris, pupil, and anterior chamber |
Cranial Nerve | a nerve that arises from the underside of the brain or the brainstem |
Diplopia | double vision |
Hemianopia | blindness in one half of the visual field |
Iris | colored muscular part of the eye |
Labyrinth | complex system of connecting chambers and tubes of the inner ear |
Lacrimal Gland | tear gland |
Sclera | tough outer protective layer of the eye |
Somatic Nervous System (SNS) | consists of the cranial and spinal nerve fibers that connect the CNS to the skin and skeletal muscles. The SNS controls conscious activities |
Special Senses | senses that stem from receptors associated with specialized sensory organs; nose eye, ear, tongue |
Tympanic Membrane | eardrum |
Vitreous Humor | clear jellylike substance within the posterior cavity of the eye |
Afferent Neurons | sensory neurons |
Arachnoid Mater | delicate, web-like middle layer of meninges |
Ascending Tracts | nerve tracts in the spinal cord that carry information to the brain |
Autonomic Nervous System (visceral nervous system) | portion of nervous system that regulates the activities of the internal organs (viscera) |
Axon | nerve fiber; conducts an nerve impulse away from the neuron cell body |
Central Nervous System | brain and spinal cord |
Cerebrospinal Fluid | fluid in the ventricles of the brain, subarachnoid space of the meninges, and the central canal of the spinal cord |
Dendrite | process of a neuron that receives input from other neurons |
Descending Tracts | nerve tracts in the spinal cord that carry information from the brain to the muscles and glands |
Dura Mater | tough outer layer of meninges |
Efferent Neurons | motor neurons |
Ganglia | a mass of neuron cell bodies, usually outside the CNS |
Gyri | ridges or convolutions on the surface of the Cerebrum separated by shallow grooves called a sulcus or deep groove called a fissure |
Meninges | membranes that cover the brain and spinal cord |
Motor Neuron | efferent neurons carry impulse out of brain or spinal cord to muscles or glands |
Myelin | fatty material that forms a sheath like covering around some axons |
Neuron | nerve cell |
Neurotransmitter | chemical that an axon end secretes on an effector (muscle or gland) or another neuron |
Nervous System Homeostasis | through sensation of changes in the internal and external environment, and the responses to those changes, the nervous system coordinates all other body systems to maintain homeostasis |
Nodes of Ranvier | narrow gaps in the Schwann cells (myelin sheath) –that allow the impulse is conducted from node to node (Saltatory conduction) and thus is sped up |
Parasympathetic Nervous System | portion of the autonomic nervous system that arises from the brain and sacral region of the spinal cord; most active under normal, restful conditions and counterbalances sympathetic nervous system |
Peripheral Nervous System | portion of the nervous system outside the central nervous system |
Pia Mater | inner layer of meninges that encloses the brain and spinal cord |
Receptors | cell surface structures that detect changes in the environment and transmit a signal to the inside of the neuron |
Resting Potential | the difference in electrical charge between the inside and outside of an undisturbed nerve cell membrane |
Sensory Neuron | neuron that transmits an impulse from a receptor to the central nervous system |
Spinal Cord | portion of the central nervous system extending from the brain stem through the vertebral cord |
Subarachnoid Space | space within the meninges between the arachnoid mater and the pia mater |
Sulcus | shallow groove on the surface of the brain |
Sympathetic Nervous System | portion of the autonomic nervous system that arises from the thoracic and lumbar regions of the spinal cord; prepares the body for energy-expending, stressful, or emergency situations |
Synapse | connection between the axon of a neuron and the dendrite of another neuron |
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