The atomic number of an atom is equal to the number of ________ an atom contains.
A) protons
B) neutrons
C) protons and neutrons
D) neutrons and electrons
(
Question 2) The cusps of the AV valves are extensions of which layer of the heart wall?
A) epicardium
B) parietal pericardium
C) myocardium
D) endocardium
(
Question 3) The most common element in the human body is ________.
A) carbon
B) oxygen
C) hydrogen
D) nitrogen
(
Question 4) A failure of which of the following heart valves would most likely lead to right atrial hypertrophy?
A) pulmonary semilunar valve
B) tricuspid valve
C) aortic semilunar valve
D) bicuspid valve
(
Question 5) Which of the following is NOT a subatomic particle associated with an atom?
A) neutron
B) electron
C) proton
D) ion
(
Question 6) Which valve regulates flow between the right ventricle and the pulmonary trunk?
A) pulmonary semilunar
B) aortic semilunar valve
C) tricuspid valve
D) mitral valve
(
Question 7) Nerve impulses involve the flow of an electrical current, a type of energy known as ________ energy.
A) radiant
B) mechanical
C) electrical
D) chemical
(
Question 8) Which of the following structures is the opening that connects the atria in the fetal heart?
A) trabeculae carneae
B) conus arteriosus
C) foramen ovale
D) aortic vestibule
(
Question 9) Matter is best described as ________.
A) having no mass
B) the ability to put matter into motion
C) anything that occupies space and has mass
D) the ability to do work
(
Question 10) What is the name of the area within the thoracic cavity where the heart is located?
A) fossa ovalis
B) auricle
C) mediastinum
D) thoracic cavity
Quick Reply
