Vertical video Close-up shot of a male medic in blue elastic gloves on a male doll practicing inserting a medical needle into a mans chest during a medical military course

medic blue gloves inserting practice doll medical needle chest vertical video close-up shot military course training simulation healthcare first aid medical procedure mannequin male practice session medical training elastic emergency combat battlefield healthcare professional army uniform paramedic procedure medical equipment skill practical demonstration classroom instructor student practice drill educational hands-on critical learning preparedness healthcare worker soldier