Which structure initiates a heartbeat?
A. AV node
B. SA node
C. left ventricle
D. left atrium
E. right ventricle
Select your answer:
Topics:
Eye or Nose Injuries The Musculoskeletal System Tutor Oral Biology Circulatory & Lymphatic Bone Marrow Histology Major Internal Organs of the Body The Ear Pulmonology/Respiratory Pulmonology Carbohydrate Metabolism Enzymes and Digestion Bone Physiology Introduction to Kinesiology Functional Anatomy in Track & Field Non-infectious DiseaseOther quiz:
Anatomy Respiratory System › ViewThe part of the respiratory system containing the nasal cavity, paranasal sinuses, & pharynx.
A. Lower respiratory tract
B. Upper respiratory tract
C. Ventilation
D. Pneumothorax
Meiosis and intro to Genetics › View
If a trait shows up more commonly in men than women it is probably
A. not inherited
B. on the x chromosome and dominant
C. on the x chromosome and recessive
D. on a normal body chromosome