EMT Chapter 6 Exam: The Human Body 100% Correct

EMT Chapter 6 Exam: The Human Body 100% Correct The electrical impulse of the heart normally begins at the: a.) sinoatrial node b.) bundle of his c.) purkinje fibers d.) atrioventricular node sinoatrial node Each pelvic bone is formed by the fusion of the: a.) sacrum and ischium b.) ilium, ischium, pubis c.) pubis and acetabulum d.) ilium, pubis, and sacrum ilium, ischium, pubis The largest portion of the brain, which is commonly referred to as the ''gray matter,'' is called the: a.) cerebrum b.) cerebellum c.) brain stem d.) diencephalon cerebrum The supporting bone of the arm is the: a.) ulna b.) humerus c.) radius d.) clavicle humerus The cervical spine is composed of _______ vertebrae. a.) four b.) five c.) six d.) seven seven The brain connects to the spinal cord through a large opening at the base of the skull called the: a.) foramen ovale b.) vertebral foramen c.) spinous foramen d.) foramen magnum foramen magnum The axial skeleton is composed of the: a.) arms, legs, and pelvis b.) lower part of the torso and the legs c.) skull, face, thorax, and vertebral column d.) bones that comprise the pe