Cardiovascular Health Science

The outer membrane that covers the heart is the _____.

• endocardium
• exocardium
• pericardium
• myocardium

The lower part of the septum is called the ________.

• interventricular septum
• interatrial septum
• aorta
• vein

The SA node is also known as the ________ of the heart.

• kickstarter
• workhorse
• facilitator
• pacemaker

The vessels that are microscopic with walls only 1 cell thick where gas exchange occurs is ________.

• venules
• arterioles
• capillaries
• vena cava

Hemoglobin carries _______.

• oxygen
• carbon dioxide
• nitrogen
• oxygen and carbon dioxide

The component of blood that is 75% water is _______.

• leukocytes
• hormones
• plasma
• erythrocytes

A process in which leukocytes destroy pathogens or germs is called _________.

• consumption
• phagocytosis
• engulfing
• destroying

Hypertension means _______.

• low blood pressure
• high blood pressure
• low hemoglobin
• high hemoglobin

Which type of anemia is due to a destruction of or injury to the bone marrow?

• sickle cell
• acute blood loss
• aplastic
• iron deficiency

A foreign substance circulating in the blood stream is a(n) _______.

• embolus
• myocardial infarction
• aneurysm
• varicose vein