13672825 - Muscles of the neck, illustration13499454 - Child's anatomy, illustration13479062 - Woman lying back on an exercise ball with arms outstretched13473149 - Lower back pain, illustration13443424 - Male back muscles, illustration13435962 - Female leg musculature, illustration13524197 - Male upper arm13478634 - Woman sitting with a straight back and holding feet together13476157 - Brain's visual pathways, illustration13473150 - Lower back pain, illustration13473144 - Lower back pain, illustration13453828 - Young man injecting anabolic steroids13453146 - Back of a healthy young man13443432 - Male back muscles, illustration13443423 - Male back muscles, illustration13387622 - Neuromuscular junction, TEM13686461 - Iris of the eye, SEM13686439 - Iris of the eye, SEM13473141 - Lower back pain, illustration13443422 - Male back muscles, illustration13435778 - Muscular system, illustration13435553 - Muscular system, illustration13686213 - Skeletal muscle fibres, light micrograph13498480 - Insect contracting muscles to move wings up, illustration13473154 - Lower back pain, illustration13473151 - Lower back pain, illustration13453816 - Man exercising13453814 - Man exercising13443430 - Male back muscles, illustration13435771 - Archibald Hill, British physiologist13586129 - Woman with lower back pain, illustration13453822 - Young man injecting anabolic steroids13443475 - Male torso muscles, illustration13435669 - Human head anatomy, illustration13387591 - Striated muscle, TEM13524569 - Orthotics13523418 - Anatomical model of the eye13473147 - Lower back pain, illustration13435542 - Muscles of the back, illustration13377636 - Eye anatomy, illustration13503625 - Muscular structure of woman13500262 - Woman leaning over to lift box off floor13444327 - Human foot anatomy, illustration13443415 - Female back muscles, illustration13435788 - Muscular system, illustration13357192 - Smooth muscle, TEM13297549 - Venous thrombosis, light micrograph13244588 - Beta-alanine, polarised light micrograph12991920 - Mammalian striated muscle, light micrograph13736714 - Normal eye and amblyopia, illustration13524198 - Male upper torso13443417 - Female back muscles, illustration13435435 - Achalasia of the oesophagus, illustration13244591 - Beta-alanine, polarised light micrograph13243318 - Lactic acid and salicylic acid, polarised light micrograph13243317 - Lactic acid and salicylic acid, polarised light micrograph13618839 - Rib cage muscles, illustration13618808 - Pelvis, illustration13585414 - Magnetization therapy13524786 - Weightlifting13478736 - Woman sitting in a pec deck machine13478714 - Woman crouching down near the floor while leaning on a bench13453821 - Nude man13452324 - Anatomical model13443431 - Male back muscles, illustration13443427 - Male back muscles, illustration13443420 - Male back muscles, illustration13387578 - Striated muscle, TEM13244592 - Beta-alanine, polarised light micrograph13244590 - Beta-alanine, polarised light micrograph13243325 - Lactic acid and salicylic acid, polarised light micrograph13736727 - Normal eye and strabismus, illustration13618838 - Rib cage muscles, illustration13500691 - Boy standing on scales next to nurse13500597 - Mature woman13500347 - Man stretching13500232 - Woman kneeling13453826 - Naked torso of an athletic male13387586 - Neuromuscular junction, TEM13376764 - Eye anatomy, illustration13243323 - Lactic acid and salicylic acid, polarised light micrograph13672824 - Muscles of the neck, illustration13523830 - GP examination13455550 - Young woman doing biceps exercise by expander horizontal13453829 - Naked torso of an athletic male13435545 - Muscles of the back, illustration13435189 - Muscles and tendons of the hand and arm, illustraiton13297841 - Skeletal muscle fibres, LM13257543 - Human head anatomy, illustration13244581 - Beta-alanine, polarised light micrograph13244580 - Beta-alanine, polarised light micrograph13218071 - Striated muscle, TEM13614290 - Collagen molecule, illustration13473152 - Lower back pain, illustration13473146 - Lower back pain, illustration13437693 - Motor neuron connecting to a muscle fibre, illustration13435964 - Female leg anatomy, illustration13387601 - Striated muscle, TEM13357336 - Prolapsing haemorrhoidsnächste Seite