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Synapsis
Synapsis The point of interaction between adjacent neurons or between a neuron and a muscle or gland, involving a chemical neurotransmitter. Plural: synapses.
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Adjacent
Lying nearby. Related terms include superjacent, subjacent, and circumjacent. From ad-, near + the Latin jacere, to lie = to lie near.
Neuron
A cell specialized to conduct and generate electrical impulses and to carry information from one part of the brain to another.
Muscle
Tissue made up of bundles of long, slender cells that contract when stimulated.
Gland
An organ that releases a chemical. Endocrine glands are ductless and secrete hormones directly into the bloodstream. Exocrine glands secrete externally, either through a tube or duct.
Neurotransmitter
Specialized chemical messenger (eg, acetylcholine, dopamine, norepinephrine, serotonin) that sends a message from one nerve cell to another. Most neurotransmitters play different roles throughout the body, many of which are not yet known.
SIMILAR TERMS--------------------------------------
Synacort
Synacort is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): hydrocortisone.
Synagis
Synagis is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): palivizumab.
Synalar
Synalar is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): fluocinolone acetonide.
Synalar-hp
Synalar-hp is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): fluocinolone acetonide.
Synalgos-dc
Synalgos-dc is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): aspirin; caffeine; dihydrocodeine bitartrate.
Synalgos-dc-a
Synalgos-dc-a is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): acetaminophen; caffeine; dihydrocodeine bitartrate.
Synapse
A tiny gap between the ends of nerve fibers across which nerve impulses pass from one neuron to another; at the synapse, an impulse causes the release of a neurotransmitter, which diffuses across the gap and triggers an electrical impulse in the next neuron.
Synarel
Synarel is a prescription or over-the-counter drug which is (or once was) approved in the United States and possibly in other countries. Active ingredient(s): nafarelin acetate.
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SSRI
Selective serotonin reuptake inhibitor. A type of drug that is used to treat depression. SSRIs slow the process by which serotonin (a substance that nerves use to send messages to one another) is reused by nerve cells that make it. This increases the amount of serotonin available for stimulating other nerves.
Skeleton
The skeleton or skeletal system is the biological system providing support in living organisms.
Skeletal system
The rigid framework of bones in the body that supports soft tissues and protects internal organs.
Syncytiotrophoblast
A true syncytium making up the outer layer of the trophoblast. Produces human chorionic gonadotropin (HCG) Large multinucleated cells with indistinct borders and a large amount of eosinophilic nuclei. See trophoblast.
Syncytium
A large cell-like structure formed by the joining together of two or more cells. The plural is syncytia.
Synapsis
Spindle apparatus
A microtubule assembly appearing during cell division. Microtubules are part of the cytoskeleton of biological cells, the quasi-rigid matrix that among other things determines cell shape. The microtubules are 25 nanometers in diameter, and composed of the protein tubulin. They occur in regular arrays in cilia, flagella, the mitotic spindle, and in the cytoplasm in general, and they contribute not only to cell shape, but also to cell motility.
Suprarenal glands
Another name for the adrenal glands.
Sebaceous glands
Fatty glands found in hair follicles throughout the body that secrete oil into the hair and surrounding skin.
Staphylococcus
Spherical gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections.
Streptococcus
A type of bacterium that may infect tonsils. Infection with this bacterium, if not treated with penicillin or other appropriate antibiotic, can lead to rheumatic fever.
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