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BIO 1002 Exam 4 Pomarico LSU Questions with 100%
Verified Answers UPDATED!!!
2 Types of circulatory systems - ANSWER 1. Open
2. Closed
Circulatory systems have 3 major parts: - ANSWER 1. A fluid that
circulates (blood)
2. A channel (vessels) that the fluid circulates through
3. A pump (heart) to keep the fluid moving
In the open circulatory system, part of the "channel" that the
fluid circulates through is an open space called the... - ANSWER
Hemocoel
7 Major Functions of the Vertebrate Circulatory System -
ANSWER 1. Transport of oxygen to the tissues
2. Transport of the nutrients to the tissue
3. Transport of waste from the tissues
4. Distribution of hormones
5. Regulation of body temperature (homeostasis)
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6. Prevention of blood loss (clotting)
7. Protection from invaders (immune system)
Type of heart design in fish - ANSWER 2-chambered heart
Type of heart design in amphibians and reptiles - ANSWER 3-
chambered heart
Type of heart design in birds and mammals - ANSWER 4-
chambered heart
Blood goes from ____________ to _______________ - ANSWER
atrium, ventricle
In the 4 CHAMBERED HEART, the right ventricle and left atrium
are used for... - ANSWER Pulmonary circulation
Pulmonary circulation is used for pumping blood to and
receiving blood back from the... - ANSWER Lungs
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In the 4 CHAMBERED HEART, the left ventricle and right atrium
is used for... - ANSWER Systemic circulation
Systemic circulation is used for pumping blood to and receiving
blood back from the... - ANSWER Body
The pumping action of the 4 CHAMBERED HEART makes up a... -
ANSWER Cardiac cycle
The cardiac cycle is the alternating ________________ and
___________________ of the heart chambers - ANSWER
Contraction; Relaxation
Cardiac Cycle - ANSWER 1. The 2 atria contract pumping blood
into the ventricles
2. A fraction of a second later, Systole
3. Diastole
Systole - ANSWER When the 2 ventricles contract and force
blood into the arteries
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Diastole - ANSWER When both chambers relax briefly
Blood pressure is shown by ______________ pressure over
_______________ pressure. - ANSWER Systolic; Diastolic
The heart has 4 one way valves to ensure __________________
flow. They are ... and ... - ANSWER Unidirectional
2 Atrioventricular valves; 2 Semilunar valves
Why the specific valves are one-way - ANSWER Pressure in one
direction opens the valve, while pressure in the reverse
direction closes them tightly
Tricuspid Valve - ANSWER Separates the right ventricle and
atrium
Bicuspid Valve - ANSWER Separates the left ventricle and atrium
Types of atrioventricular valves (2) - ANSWER 1. Tricuspid
2. Bicuspid
BIO 1002 Exam 4 Pomarico LSU Questions with 100%
Verified Answers UPDATED!!!
2 Types of circulatory systems - ANSWER 1. Open
2. Closed
Circulatory systems have 3 major parts: - ANSWER 1. A fluid that
circulates (blood)
2. A channel (vessels) that the fluid circulates through
3. A pump (heart) to keep the fluid moving
In the open circulatory system, part of the "channel" that the
fluid circulates through is an open space called the... - ANSWER
Hemocoel
7 Major Functions of the Vertebrate Circulatory System -
ANSWER 1. Transport of oxygen to the tissues
2. Transport of the nutrients to the tissue
3. Transport of waste from the tissues
4. Distribution of hormones
5. Regulation of body temperature (homeostasis)
, Page |2
6. Prevention of blood loss (clotting)
7. Protection from invaders (immune system)
Type of heart design in fish - ANSWER 2-chambered heart
Type of heart design in amphibians and reptiles - ANSWER 3-
chambered heart
Type of heart design in birds and mammals - ANSWER 4-
chambered heart
Blood goes from ____________ to _______________ - ANSWER
atrium, ventricle
In the 4 CHAMBERED HEART, the right ventricle and left atrium
are used for... - ANSWER Pulmonary circulation
Pulmonary circulation is used for pumping blood to and
receiving blood back from the... - ANSWER Lungs
, Page |3
In the 4 CHAMBERED HEART, the left ventricle and right atrium
is used for... - ANSWER Systemic circulation
Systemic circulation is used for pumping blood to and receiving
blood back from the... - ANSWER Body
The pumping action of the 4 CHAMBERED HEART makes up a... -
ANSWER Cardiac cycle
The cardiac cycle is the alternating ________________ and
___________________ of the heart chambers - ANSWER
Contraction; Relaxation
Cardiac Cycle - ANSWER 1. The 2 atria contract pumping blood
into the ventricles
2. A fraction of a second later, Systole
3. Diastole
Systole - ANSWER When the 2 ventricles contract and force
blood into the arteries
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Diastole - ANSWER When both chambers relax briefly
Blood pressure is shown by ______________ pressure over
_______________ pressure. - ANSWER Systolic; Diastolic
The heart has 4 one way valves to ensure __________________
flow. They are ... and ... - ANSWER Unidirectional
2 Atrioventricular valves; 2 Semilunar valves
Why the specific valves are one-way - ANSWER Pressure in one
direction opens the valve, while pressure in the reverse
direction closes them tightly
Tricuspid Valve - ANSWER Separates the right ventricle and
atrium
Bicuspid Valve - ANSWER Separates the left ventricle and atrium
Types of atrioventricular valves (2) - ANSWER 1. Tricuspid
2. Bicuspid
