| quadrilateral space | Musculotendinous formation providing passageway for the axillary nerve, posterior humeral circumflex artery and accompanying veins as they run from the axilla to the superior posterior arm; as the neurovascular structures enter the formation anteriorly, it is bounded superiorly by the shoulder joint, medially by the lateral border of subscapularis, laterally by the surgical neck of the humerus, and inferiorly by the tendon of latissimus dorsi; as the vessels exit the formation posteriorly, it is bounded superiorly by the teres minor, medially by the long head of the triceps, laterally by the lateral head of the triceps and inferiorly by the teres major muscle or tendon; as they emerge, most of the neurovascular structures run on the deep surface of the deltoid muscle, which they supply. Synonym: quadrilateral space. (05 Mar 2000) |
|---|---|
| quadrilobed | Having four lobes; as, a quadrilobate leaf. Origin: Quadri- + lobe: cf. F. Quadrilobe. Source: Websters Dictionary (01 Mar 1998) |
| quadrilocular | Having four cells, or cavities; as, a quadrilocular heart. Origin: Quadri- + locular: cf. F. Quadriloculaire. Source: Websters Dictionary (01 Mar 1998) |
| quadrinodal | <mathematics> Possessing four nodes; as, quadrinodal curves. Origin: Quadri- + nodal. Source: Websters Dictionary (01 Mar 1998) |
| quadrinomial | <mathematics> A polynomial of four terms connected by the signs plus or minus. Origin: Quadri- + nomial, as in binomial: cf. F. Quadrinome. Source: Websters Dictionary (01 Mar 1998) |
| quadrinominal | <mathematics> Quadrinomial. Origin: Quadri- + nominal. Source: Websters Dictionary (01 Mar 1998) |
| quadriparesis | Weakness of all four limbs, both arms and both legs, as for example from muscular dystrophy. (12 Dec 1998) |
| quadripartition | A division or distribution by four, or into four parts; also, a taking the fourth part of any quantity or number. Origin: L. Quadripartitio: cf. F. Quadripartition. Source: Websters Dictionary (01 Mar 1998) |
| quadripedal extensor reflex | Extension of the arm of a hemiplegic patient when turned prone as if on all fours. Synonym: Brain's reflex. (05 Mar 2000) |
| quadripennate | <zoology> Having four wings; said of insects. Origin: Quadri- + pennate. Source: Websters Dictionary (01 Mar 1998) |
| quadriphyllous | <botany> Having four leaves; quadrifoliate. Origin: Quadri + Gr. Leaf. Source: Websters Dictionary (01 Mar 1998) |
| quadriplegia | Paralysis of all four limbs, both arms and both legs, as from a high spinal cord accident or stroke. (12 Dec 1998) |
| quadriplegic | Pertaining to or afflicted with quadriplegia. Synonym: tetraplegic. (05 Mar 2000) |
| quadripolar | Having four poles. (05 Mar 2000) |
| quadrisect | To divide into four parts. Synonym: quartisect. Origin: quadri-+ L. Seco, pp. Sectus, to cut (05 Mar 2000) |