NCCT Anatomy and Physiology 2 — Questions and Answers
Question 1: Which antecubital vein is considered the least preferred for venipuncture due to its proximity to nerves and arteries?
- Basilic vein (Correct answer)
- Median cubital vein
- Cephalic vein
- Accessory cephalic vein
Correct answer: Basilic vein
The basilic vein is least preferred because it lies close to the brachial artery and the median nerve, increasing the risk of injury.
Question 2: What term describes the process by which blood flows through capillaries to deliver nutrients and remove waste?
- Perfusion (Correct answer)
- Hemostasis
- Coagulation
- Filtration
Correct answer: Perfusion
Perfusion refers to the passage of blood through capillary beds to exchange nutrients and waste between blood and tissues.
Question 3: The aorta is an example of which type of blood vessel?
- Artery (Correct answer)
- Vein
- Capillary
- Venule
Correct answer: Artery
The aorta is the largest artery in the body, originating from the left ventricle and distributing oxygenated blood systemically.
Question 4: Which blood component is responsible for the primary immune response?
- White blood cells (Correct answer)
- Red blood cells
- Platelets
- Plasma proteins
Correct answer: White blood cells
White blood cells (leukocytes) are the main cellular components of the immune system, defending the body against infection and disease.
Question 5: What is the role of platelets in the blood?
- Initiate clot formation at a wound site (Correct answer)
- Carry oxygen to tissues
- Produce antibodies
- Transport carbon dioxide
Correct answer: Initiate clot formation at a wound site
Platelets (thrombocytes) aggregate at injury sites and release clotting factors to form a platelet plug, initiating hemostasis.
Question 6: Which plasma protein is essential for blood clot formation?
- Fibrinogen (Correct answer)
- Albumin
- Globulin
- Transferrin
Correct answer: Fibrinogen
Fibrinogen is converted to fibrin by thrombin during coagulation, forming the mesh that stabilizes a blood clot.
NCCT Anatomy and Physiology 2
Which antecubital vein is considered the least preferred for venipuncture due to its proximity to nerves and arteries?