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23 Cards in this Set

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  • Back
Antagonist
A muscle that opposes the agonist at a joint.
Popliteal
Pertaining to the pit on the posterior aspect of the knee.
Intrinsic
Arising from within, such as intrinsic blood-clotting factors; Endogenous.
Plantar
Pertaining to the sole of the foot.
Perineum
The region between the thighs bordered by the coccyx, pubic symphysis, and ischial tuberosities; contains the orifices of the urinary, reproductive, and digestive systems.
Origin
The relatively stationary attachment of a skeletal muscle (compare insertion).
Convergent
Coming together, as in a convergent muscle and a converging neuronal circuit.
Resistance
A nonspecific ability to ward off infection or disease regardless of whether the body has been previously exposed to it.
Muscular System
An organ system composed of the skeletal muscles, specialized mainly for maintaining postural support and producing movements of the bones.
Fix
To hold a structure in place, for example, by fixator muscles that prevent unwanted joint movements.
Innervation
The nerve supply to an organ
Linea
An anatomical line, such as the linea albicans.
Exocytosis
A process in which a vesicle in the cytoplasm of a cell fuses with the plasma membrane and releases its contents from the cell; used in the elimination of cellular wastes and in the release of gland products and neurotransmitters.
Intravenous
Present or occurring within a vein, such as an intravenous blood clot.
Fascicle
A bundle of muscle or nerve fibers ensheathed in connective tissue; multiple fascicles bound together constitute a muscle or nerve as a whole.
Hiatus
An opening or gap, such as the esophageal hiatus through the diaphragm.
Belly
The thick part of a skeletal muscle between its origin and insertion.
Cooperative Effects
Effects in which two hormones, or both divisions of the autonomic nervous system, work together to produce a single overall result.
Prime Mover
The muscle primarily responsible for a given joint action; agonist.
Stereocilium
An unusually long, sometimes branched microvillus, lacking the axoneme and motility of a true cilium; serves such roles as absorption in the epididymis and sensory transduction in the inner ear.
Synergist
A muscle that works with the agonist to contribute to the same overall action at a joint.
Thorax
A region of the trunk between the neck and the diaphragm; the chest.
Insertion
The point at which a muscle attaches to another tissue and produces movement, opposite from its stationary origin; the origin and insertion of a given muscle sometimes depend on what muscle action is being considered.