BIOL 2402 EXAM 2 (LATEST UPDATE) REAL QUESTIONS
AND VERIFIED ANSWERS |100% CORRECT | ALREADY
GRADED A
Objective 19.1a.1Describe the general function of the cardiovascular
system Ans✓✓✓- transport blood through the body
-allows exchange of substances between capillaries and cells
- perfuses tissues: delivery of blood to tissues
Objective 19.1b.2Differentiate between the three primary types of blood
vessels Ans✓✓✓1. Arteries
-high pressure and blood away from the heart
2. Veins
- low pressure and blood back to the heart
3. Capillaries
-site of blood exchange
-between blood and air in lungs or between blood and body cells
Objective 19.1b.3 Describe the general structure and function of the
heart Ans✓✓✓1. Right sided pump
-receives deoxygenated blood from body
-pumps to pulmonary circuit
,2. Left sided pump
-receives oxygenated blood from lungs
pumps to systemic circuit
3. L and R Atrium
- superior chambers for receiving blood
4. L and R ventricles
- inferior chambers, for pumping blood away
-receives blood from atria
Objective 19.1b.4Compare and contrast pulmonary circulation and
systemic circulation of the cardiovascular system Ans✓✓✓1. Pulmonary
Circulation
-carries deoxygenated blood from R side of the heart
- goes through blood vessels to the lungs
- pick up oxygen and release of carbon dioxide
back through vessels to left side of the heart
2. Systemic Circulation
-moves oxygenated blood to the left side of the heart
-moves through vessels to systemic cells
-exchange nutrients, gases, and waste
- return blood in vessels to right side of the heart
,- includes coronary circulation
R heart- lungs- L heart- systemic tissues- R heart
Objective 19.2a.1Describe the location and position of the heart in the
thoracic cavity Ans✓✓✓- R side is more anteriorly
- L side is more posteriorly
-Base: posterosuperior surface
-Apex: Inferior, conical end
*Right side has a sower systolic and diastolic pressure
*Left side has greater pressure because needs to pump to entire body
Objective 19.2b.2List the structural components of the pericardium
Ans✓✓✓1. pericardial sac: outermost covering (Parietal pericardium)
-fibrous pericardium (Outermost)
-Serous pericardium(Innermost)
2. Visceral layer of serous pericardium(Epicardium)
3. Pericardial cavity- serous fluid
, *reduces friction
Objective 19.2b.3Describe the function of the pericardium and the
purpose of the serous fluid within the pericardial cavity Ans✓✓✓1.
Pericardial sac
-fibrous pericardium(Outer)
- restricts movement and prevents heart from overfilling
2. Serous pericardium (Inner)
- thin serous membrane
3. Visceral layer os serous pericardium (epicardium)
-continuous with parietal layer
both attaching to atrial trunks
*Pericardial cavity
-helps eliminate friction
Objective 19.3a.1Compare the superficial features of the anterior and
posterior aspects of the heart Ans✓✓✓
Objective 19.3b.2 Name the three layers of the heart wall and the tissue
components of each Ans✓✓✓1. Epicardium
-visceral pericardium, serous membrane os simple squamous epithelium
AND VERIFIED ANSWERS |100% CORRECT | ALREADY
GRADED A
Objective 19.1a.1Describe the general function of the cardiovascular
system Ans✓✓✓- transport blood through the body
-allows exchange of substances between capillaries and cells
- perfuses tissues: delivery of blood to tissues
Objective 19.1b.2Differentiate between the three primary types of blood
vessels Ans✓✓✓1. Arteries
-high pressure and blood away from the heart
2. Veins
- low pressure and blood back to the heart
3. Capillaries
-site of blood exchange
-between blood and air in lungs or between blood and body cells
Objective 19.1b.3 Describe the general structure and function of the
heart Ans✓✓✓1. Right sided pump
-receives deoxygenated blood from body
-pumps to pulmonary circuit
,2. Left sided pump
-receives oxygenated blood from lungs
pumps to systemic circuit
3. L and R Atrium
- superior chambers for receiving blood
4. L and R ventricles
- inferior chambers, for pumping blood away
-receives blood from atria
Objective 19.1b.4Compare and contrast pulmonary circulation and
systemic circulation of the cardiovascular system Ans✓✓✓1. Pulmonary
Circulation
-carries deoxygenated blood from R side of the heart
- goes through blood vessels to the lungs
- pick up oxygen and release of carbon dioxide
back through vessels to left side of the heart
2. Systemic Circulation
-moves oxygenated blood to the left side of the heart
-moves through vessels to systemic cells
-exchange nutrients, gases, and waste
- return blood in vessels to right side of the heart
,- includes coronary circulation
R heart- lungs- L heart- systemic tissues- R heart
Objective 19.2a.1Describe the location and position of the heart in the
thoracic cavity Ans✓✓✓- R side is more anteriorly
- L side is more posteriorly
-Base: posterosuperior surface
-Apex: Inferior, conical end
*Right side has a sower systolic and diastolic pressure
*Left side has greater pressure because needs to pump to entire body
Objective 19.2b.2List the structural components of the pericardium
Ans✓✓✓1. pericardial sac: outermost covering (Parietal pericardium)
-fibrous pericardium (Outermost)
-Serous pericardium(Innermost)
2. Visceral layer of serous pericardium(Epicardium)
3. Pericardial cavity- serous fluid
, *reduces friction
Objective 19.2b.3Describe the function of the pericardium and the
purpose of the serous fluid within the pericardial cavity Ans✓✓✓1.
Pericardial sac
-fibrous pericardium(Outer)
- restricts movement and prevents heart from overfilling
2. Serous pericardium (Inner)
- thin serous membrane
3. Visceral layer os serous pericardium (epicardium)
-continuous with parietal layer
both attaching to atrial trunks
*Pericardial cavity
-helps eliminate friction
Objective 19.3a.1Compare the superficial features of the anterior and
posterior aspects of the heart Ans✓✓✓
Objective 19.3b.2 Name the three layers of the heart wall and the tissue
components of each Ans✓✓✓1. Epicardium
-visceral pericardium, serous membrane os simple squamous epithelium
