PNB 2265 Exam 1 Questions and Answers
with Verified Solutions | Latest Updated 2026
Which of the following factors - Factor XIII: Converts loose fibrin to
associated with hemostasis are stabilized fibrin polymer
correctly paired with their - Tissue Factor: The entry point to the
function? extrinsic pathway
Sickle cell anemia is a disorder Sticky" Hemoglobin and misshaped
characterized by: erythrocytes.
Which statement(s) is/are true - Platelets are normally found in the
about platelets? blood, and some of their clotting factors
may become activated upon exposure to
a connective tissue protein.
- Platelets are activated by ADP and
Thromboxane A2 (TxA2 or Thromboxane)
Adult hemoglobin is - Four heme groups
composed of: - Two Alpha subunits
- Two Beta subunits
Which of the following - Production is stimulated by hypoxia (low
statements are true about oxygen) and mediated by EPO
erythrocytes? - They have no nucleus.
Which of the following - Bilirubin is excreted in urine
statements are true about the - Bilirubin is excreted in bile
breakdown of red blood - Iron is carried through the plasma by
cells? transferrin
,A deficiency of vitamin B12 A: Macrocytic anemia
leads to _____A_______ due to B: Disruption of DNA replication
_____B_____.
Which of the following are - Activates Fibrinogin to produce loose
actions of Thrombin? fibrin.
- Activates factor XIII
- Activates cascade of clotting proteins
The normal shape of the A: Biconcave disk
mature erythrocyte is a B: Oxygen transport from blood to
_____A_____. This structure tissues.
contributes to the function of B: Proper flow of blood
____B______.
Hemoglobin is able to bind to - Oxygen
_____________. - Carbon dioxide
Veins always carry blood Toward the heart
__________
Compared to the left ventricle, The same
the right ventricle pumps out
___________ amount of blood
The serous pericardium Includes a visceral layer overlying the
myocardium.
, The ____A_______ of the left A: Myocardium
ventricle is _____B_____ that of B: Thicker than
the
right ventricle.
The bicuspid valve _________. - Prevents backflow from left ventricle
into left atrium
- Allows blood to flow from left atrium
into left ventricle
- Is also called the mitral valve
The pulmonary arteries carry A: Deoxygenated
____A_____ blood from the B: Right ventricle
______B______.
The aortic semilunar valve Prevents backflow from aorta into left
_________. ventricle
UNLIKE in skeletal muscle, - Cells are connected by gap junctions
cardiac muscle __________ - Has intercalated disks
with Verified Solutions | Latest Updated 2026
Which of the following factors - Factor XIII: Converts loose fibrin to
associated with hemostasis are stabilized fibrin polymer
correctly paired with their - Tissue Factor: The entry point to the
function? extrinsic pathway
Sickle cell anemia is a disorder Sticky" Hemoglobin and misshaped
characterized by: erythrocytes.
Which statement(s) is/are true - Platelets are normally found in the
about platelets? blood, and some of their clotting factors
may become activated upon exposure to
a connective tissue protein.
- Platelets are activated by ADP and
Thromboxane A2 (TxA2 or Thromboxane)
Adult hemoglobin is - Four heme groups
composed of: - Two Alpha subunits
- Two Beta subunits
Which of the following - Production is stimulated by hypoxia (low
statements are true about oxygen) and mediated by EPO
erythrocytes? - They have no nucleus.
Which of the following - Bilirubin is excreted in urine
statements are true about the - Bilirubin is excreted in bile
breakdown of red blood - Iron is carried through the plasma by
cells? transferrin
,A deficiency of vitamin B12 A: Macrocytic anemia
leads to _____A_______ due to B: Disruption of DNA replication
_____B_____.
Which of the following are - Activates Fibrinogin to produce loose
actions of Thrombin? fibrin.
- Activates factor XIII
- Activates cascade of clotting proteins
The normal shape of the A: Biconcave disk
mature erythrocyte is a B: Oxygen transport from blood to
_____A_____. This structure tissues.
contributes to the function of B: Proper flow of blood
____B______.
Hemoglobin is able to bind to - Oxygen
_____________. - Carbon dioxide
Veins always carry blood Toward the heart
__________
Compared to the left ventricle, The same
the right ventricle pumps out
___________ amount of blood
The serous pericardium Includes a visceral layer overlying the
myocardium.
, The ____A_______ of the left A: Myocardium
ventricle is _____B_____ that of B: Thicker than
the
right ventricle.
The bicuspid valve _________. - Prevents backflow from left ventricle
into left atrium
- Allows blood to flow from left atrium
into left ventricle
- Is also called the mitral valve
The pulmonary arteries carry A: Deoxygenated
____A_____ blood from the B: Right ventricle
______B______.
The aortic semilunar valve Prevents backflow from aorta into left
_________. ventricle
UNLIKE in skeletal muscle, - Cells are connected by gap junctions
cardiac muscle __________ - Has intercalated disks
