PNB 2265 Exam 1 LATEST 2026 ACTUAL EXAM WITH
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED
A+
Which of the following factors associated with hemostasis are correctly
paired with their function? ......ANSWER......- Factor XIII: Converts loose
fibrin to stabilized fibrin polymer
- Tissue Factor: The entry point to the extrinsic pathway
Sickle cell anemia is a disorder characterized by: ......ANSWER......Sticky"
Hemoglobin and misshaped erythrocytes.
Which statement(s) is/are true about platelets? ......ANSWER......-
Platelets are normally found in the 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 composed of: ......ANSWER......- Four heme groups
- Two Alpha subunits
- Two Beta subunits
pg. 1
,Which of the following statements are true about erythrocytes?
......ANSWER......- Production is stimulated by hypoxia (low oxygen) and
mediated by EPO
- They have no nucleus.
Which of the following statements are true about the breakdown of red
blood cells? ......ANSWER......- Bilirubin is excreted in urine
- Bilirubin is excreted in bile
- Iron is carried through the plasma by transferrin
A deficiency of vitamin B12 leads to _____A_______ due to
_____B_____ . ......ANSWER......A: Macrocytic anemia
B: Disruption of DNA replication
Which of the following are actions of Thrombin? ......ANSWER......-
Activates Fibrinogin to produce loose fibrin.
- Activates factor XIII
- Activates cascade of clotting proteins
The normal shape of the mature erythrocyte is a _____A_____ . This
structure contributes to the function of ____B______ .
......ANSWER......A: Biconcave disk
B: Oxygen transport from blood to tissues.
pg. 2
,B: Proper flow of blood
Hemoglobin is able to bind to _____________ . ......ANSWER......-
Oxygen
- Carbon dioxide
Veins always carry blood __________ ......ANSWER......Toward the heart
Compared to the left ventricle, the right ventricle pumps out
___________ amount of blood ......ANSWER......The same
The serous pericardium ......ANSWER......Includes a visceral layer
overlying the myocardium.
The ____A_______ of the left ventricle is _____B_____ that of the right
ventricle. ......ANSWER......A: Myocardium
B: Thicker than
The bicuspid valve _________ . ......ANSWER......- Prevents backflow
from left ventricle into left atrium
- Allows blood to flow from left atrium into left ventricle
- Is also called the mitral valve
pg. 3
, The pulmonary arteries carry ____A_____ blood from the
______B______ . ......ANSWER......A: Deoxygenated
B: Right ventricle
The aortic semilunar valve _________ . ......ANSWER......Prevents
backflow from aorta into left ventricle
UNLIKE in skeletal muscle, cardiac muscle __________ ......ANSWER......-
Cells are connected by gap junctions
- Has intercalated disks
The QRS complex represents ___A___, shortly after which the ventricles
begin to ____B______. Next, ventricular pressure ____C_____ atrial
pressure, and the AV valves _____D_____. Ventricular pressure
_____E_____ until the semilunar valves ____F______ and ventricular
ejection begins. This paragraph describes the ____G_____ phase of the
cardiac cycle. ......ANSWER......A: Ventricular depolarization
B: Contract
C: Rises above
D: Close
E: Rises
F: Open
G: Systole
pg. 4
COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED
A+
Which of the following factors associated with hemostasis are correctly
paired with their function? ......ANSWER......- Factor XIII: Converts loose
fibrin to stabilized fibrin polymer
- Tissue Factor: The entry point to the extrinsic pathway
Sickle cell anemia is a disorder characterized by: ......ANSWER......Sticky"
Hemoglobin and misshaped erythrocytes.
Which statement(s) is/are true about platelets? ......ANSWER......-
Platelets are normally found in the 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 composed of: ......ANSWER......- Four heme groups
- Two Alpha subunits
- Two Beta subunits
pg. 1
,Which of the following statements are true about erythrocytes?
......ANSWER......- Production is stimulated by hypoxia (low oxygen) and
mediated by EPO
- They have no nucleus.
Which of the following statements are true about the breakdown of red
blood cells? ......ANSWER......- Bilirubin is excreted in urine
- Bilirubin is excreted in bile
- Iron is carried through the plasma by transferrin
A deficiency of vitamin B12 leads to _____A_______ due to
_____B_____ . ......ANSWER......A: Macrocytic anemia
B: Disruption of DNA replication
Which of the following are actions of Thrombin? ......ANSWER......-
Activates Fibrinogin to produce loose fibrin.
- Activates factor XIII
- Activates cascade of clotting proteins
The normal shape of the mature erythrocyte is a _____A_____ . This
structure contributes to the function of ____B______ .
......ANSWER......A: Biconcave disk
B: Oxygen transport from blood to tissues.
pg. 2
,B: Proper flow of blood
Hemoglobin is able to bind to _____________ . ......ANSWER......-
Oxygen
- Carbon dioxide
Veins always carry blood __________ ......ANSWER......Toward the heart
Compared to the left ventricle, the right ventricle pumps out
___________ amount of blood ......ANSWER......The same
The serous pericardium ......ANSWER......Includes a visceral layer
overlying the myocardium.
The ____A_______ of the left ventricle is _____B_____ that of the right
ventricle. ......ANSWER......A: Myocardium
B: Thicker than
The bicuspid valve _________ . ......ANSWER......- Prevents backflow
from left ventricle into left atrium
- Allows blood to flow from left atrium into left ventricle
- Is also called the mitral valve
pg. 3
, The pulmonary arteries carry ____A_____ blood from the
______B______ . ......ANSWER......A: Deoxygenated
B: Right ventricle
The aortic semilunar valve _________ . ......ANSWER......Prevents
backflow from aorta into left ventricle
UNLIKE in skeletal muscle, cardiac muscle __________ ......ANSWER......-
Cells are connected by gap junctions
- Has intercalated disks
The QRS complex represents ___A___, shortly after which the ventricles
begin to ____B______. Next, ventricular pressure ____C_____ atrial
pressure, and the AV valves _____D_____. Ventricular pressure
_____E_____ until the semilunar valves ____F______ and ventricular
ejection begins. This paragraph describes the ____G_____ phase of the
cardiac cycle. ......ANSWER......A: Ventricular depolarization
B: Contract
C: Rises above
D: Close
E: Rises
F: Open
G: Systole
pg. 4
