Bio 132 Exam Newest 2025/2026
Actual Exam Complete Questions And
Correct Detailed Answers (Verified
Answers) |Already Graded A+||Brand
New Version!!
The heart is surrounded by a double membrane. Prevents overfilling of the heart with
blood; Connective tissue - Answer- Pericardium
Fits loosely around the heart; Attached to the superficial surface of the diaphragm -
Answer- Parietal pericardium
Thin superficial layer of the heart - Answer- Visceral pericardium/epicardium
Filled with pericardial fluid; Allows for the heart to work in a relatively friction-free
environment - Answer- Pericardial cavity
Inflammation of the pericardium - Answer- Pericarditis
The septum serves to separate Oxygenated blood (LEFT half) from Deoxygenated
blood (RIGHT half) - Answer- Septum
Superiorly located; Atrium receives blood returning to the heart from the blood vessels -
Answer- Atrium
Inferiorly located; Blood out into the blood vessels - Answer- Ventricle
Left side of the heart receives newly oxygenated blood from the lungs and pumps it -
Answer- Systemic circulation
120 mmHg - Answer- Systemic pressure
25 mmHg - Answer- pulmonary pressure
The right side of the heart receives blood from the tissues and pumps it - Answer-
Pulmonary circulation
left atrium...left ventricle...aorta... coronary arteries...cappiliaries to
coronary vein...right atrium...superior vena cava.... right atrium..inferior vena cava
...right atrium - Answer- Systemic Circulation path
, coronary vein...right atrium
veins...superior vena cava...right atrium veins...inferior vena cava...right atrium -
Answer- Pulmonary Circulation path
The heart is composed mostly of cardiac muscle. TWO TYPES - contractile cells and
conducting cells. Individual cells branch and join neighboring cells end-to end at
junctions called intercalated disks - Answer- Myocardium
Consist of esmosomes and gap junctions - Answer- Intercalated Disks
Protein complexes that form pores between adjacent cells which electrically connect
adjacent cells to one another as ions are able to pass freely between cells (electrical
synapse) - Answer- Gap junctions
Protein complexes that bind adjacent cells together allowing force generated in one cell
to be transferred to the adjacent cell - Answer- Desmosomes
1 nucleus
striated (contains sarcomeres of actin and myosin)
myocardial sarcoplasmic reticulum
cardiac muscle depends on extracellular Ca2+ to initiate contraction
mitochondria occupy ~30% of the cell volume which demonstrates their high energy
demand
in person at rest, hemoglobin unloads 75% of its delivered oxygen to cardiac muscle -
Answer- Contractile cardiac muscle fibers
Covered by thin outer and inner layers of connective tissue - Answer-
Epicardium/visceral layer of the Pericardium
Endocardium - Answer- Endocardium
Contraction; Pressure exerted on the blood increases and blood flows out of (empties)
the ventricles into the arteries displacing the lower pressure blood in the vessels -
Answer- Systole
Relaxation; Pressure exerted on the blood decreases and blood flows into (fills) the
ventricles - Answer- Diastole
First the atria contract together (while the ventricles relax), then the ventricles contract
together (while the atria relax) - Answer- Cardiac Cycle
When a valve will open and close - Answer- Blood pressure gradient
Prevent the backflow of blood from the ventricles into the atria. - Answer-
Atrioventricular (AV) valves
Actual Exam Complete Questions And
Correct Detailed Answers (Verified
Answers) |Already Graded A+||Brand
New Version!!
The heart is surrounded by a double membrane. Prevents overfilling of the heart with
blood; Connective tissue - Answer- Pericardium
Fits loosely around the heart; Attached to the superficial surface of the diaphragm -
Answer- Parietal pericardium
Thin superficial layer of the heart - Answer- Visceral pericardium/epicardium
Filled with pericardial fluid; Allows for the heart to work in a relatively friction-free
environment - Answer- Pericardial cavity
Inflammation of the pericardium - Answer- Pericarditis
The septum serves to separate Oxygenated blood (LEFT half) from Deoxygenated
blood (RIGHT half) - Answer- Septum
Superiorly located; Atrium receives blood returning to the heart from the blood vessels -
Answer- Atrium
Inferiorly located; Blood out into the blood vessels - Answer- Ventricle
Left side of the heart receives newly oxygenated blood from the lungs and pumps it -
Answer- Systemic circulation
120 mmHg - Answer- Systemic pressure
25 mmHg - Answer- pulmonary pressure
The right side of the heart receives blood from the tissues and pumps it - Answer-
Pulmonary circulation
left atrium...left ventricle...aorta... coronary arteries...cappiliaries to
coronary vein...right atrium...superior vena cava.... right atrium..inferior vena cava
...right atrium - Answer- Systemic Circulation path
, coronary vein...right atrium
veins...superior vena cava...right atrium veins...inferior vena cava...right atrium -
Answer- Pulmonary Circulation path
The heart is composed mostly of cardiac muscle. TWO TYPES - contractile cells and
conducting cells. Individual cells branch and join neighboring cells end-to end at
junctions called intercalated disks - Answer- Myocardium
Consist of esmosomes and gap junctions - Answer- Intercalated Disks
Protein complexes that form pores between adjacent cells which electrically connect
adjacent cells to one another as ions are able to pass freely between cells (electrical
synapse) - Answer- Gap junctions
Protein complexes that bind adjacent cells together allowing force generated in one cell
to be transferred to the adjacent cell - Answer- Desmosomes
1 nucleus
striated (contains sarcomeres of actin and myosin)
myocardial sarcoplasmic reticulum
cardiac muscle depends on extracellular Ca2+ to initiate contraction
mitochondria occupy ~30% of the cell volume which demonstrates their high energy
demand
in person at rest, hemoglobin unloads 75% of its delivered oxygen to cardiac muscle -
Answer- Contractile cardiac muscle fibers
Covered by thin outer and inner layers of connective tissue - Answer-
Epicardium/visceral layer of the Pericardium
Endocardium - Answer- Endocardium
Contraction; Pressure exerted on the blood increases and blood flows out of (empties)
the ventricles into the arteries displacing the lower pressure blood in the vessels -
Answer- Systole
Relaxation; Pressure exerted on the blood decreases and blood flows into (fills) the
ventricles - Answer- Diastole
First the atria contract together (while the ventricles relax), then the ventricles contract
together (while the atria relax) - Answer- Cardiac Cycle
When a valve will open and close - Answer- Blood pressure gradient
Prevent the backflow of blood from the ventricles into the atria. - Answer-
Atrioventricular (AV) valves
