concave area
11Bicycle brake systems — are used to slow down, or brake a bicycle. There have been various types through history, and several are still in use today.HistoryEarly bicycles such as the high wheeled penny farthing bikes were fitted with spoon brakes. As they were fixed… …
12ocellar basin — (ARTHROPODA: Insecta) In Hymenoptera, a concave area, varying in form and size, occupying the median portion of the frontal area …
13Pregnancy (mammals) — For pregnancy in humans, see pregnancy. A pregnant lioness. In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. It begins when a… …
14Brown earth — is a type of soil. Brown earths are mostly located between 30° and 55° north of the Equator. The largest expanses cover western and central Europe, large areas of western and trans Uralian Russia, the east coast of America and eastern Asia. Here …
15fossa iliaca — [TA] iliac fossa: a large, smooth concave area occupying much of the inner surface of the ala of the ilium, especially anteriorly; from it arises the iliacus muscle …
16fossa infraspinata — [TA] infraspinous fossa the large, slightly concave area below the spinous process on the dorsal surface of the scapula; it is the site of origin of the infraspinatus muscle …
17fossa supraspinata — [TA] supraspinous fossa the deeply concave area above the spinous process on the dorsal surface of the scapula from which the supraspinous muscle takes origin …
18Insect morphology — Legend of body parts Tagmata : A Head, B Thorax, C Abdomen. 1. antenna 2. ocelli (lower) 3. ocelli (upper) 4. compound eye 5. brain (cerebral ganglia) 6. prothorax …
19Insect wing — Original veins and wing posture of a dragonfly. Hoverflies hovering to mate …
20pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
