opposable thumb

pinch

Squeeze with fingertips

• graspSeize or understand
• precision gripThumb-to-fingertip manipulation technique
• power gripStrength-maximizing hand position

prehension · pincer grasp · clutch · hold · squeeze · clamp · key grip

primate

Higher mammal order member

• hominidBipedal primate family
• Homo sapiensScientific name for humans
• great apesTailless primate family

bipedalism · natural selection · adaptation · anthropology · human evolution · Australopithecus · Homo erectus · chimpanzee · gorilla · orangutan

fine motor skills

Small muscle control ability

• manipulationUnderhanded control of others
• hand-eye coordinationAbility to sync vision and movement
• pickingAct of selecting

holding · tweezing · plucking · threading · buttoning · tying · writing · typing · texting · swiping

pollex

First digit of hand

• phalangesBones of fingers, toes
• metacarpalLong bone in hand
• digitSingle numeric character

manus · flexor · extensor · abductor · adductor · tendon · ligament · musculature · articulation · thenar

flintknapping

Striking stone to shape tools

• hammeringStriking repeatedly with force
• chopsticksPaired wooden eating implements
• paintbrushBristled tool for applying pigment

screwdriver · wrench · scissors · pen grip · bow and arrow · spear throwing · weaving · pottery · carving · engraving

• prehensile partsmonkey tail, elephant trunk, tentacle
• animal anatomyskull, teeth, ears, eyes, nose
• hands and feethand, foot, fingers, toes, palm
• primate bodyskull, ribcage, pelvis, vertebrae, femur
• digit anatomyfinger, toe, phalanx, phalanges, phalange
• body partsarm, leg, hand, back, chest