#1
Which of the following is NOT a function of veins?
Transporting oxygenated blood to the tissues
ExplanationVeins primarily transport deoxygenated blood back to the heart.
#2
Which vein is commonly used for venipuncture in the antecubital fossa?
Median cubital vein
ExplanationThe median cubital vein is commonly used for venipuncture in the antecubital fossa.
#3
What is the term for the abnormal enlargement of veins, often seen as twisted, bulging lines under the skin?
Varicose veins
ExplanationVaricose veins refer to the abnormal enlargement of veins, often visible under the skin.
#4
Which vein is formed by the union of the popliteal and femoral veins?
Femoral vein
ExplanationThe femoral vein is formed by the union of the popliteal and femoral veins.
#5
Which vein is located deep within the calf muscle and empties into the popliteal vein?
Plantar vein
ExplanationThe plantar vein is deep within the calf muscle, emptying into the popliteal vein.
#6
Which layer of the vein wall is primarily responsible for providing structural support?
Tunica media
ExplanationTunica media is the layer responsible for structural support in veins.
#7
What is the main function of venous valves?
To prevent backflow of blood
ExplanationVenous valves prevent the backward flow of blood in veins.
#8
Which of the following is NOT a major superficial vein of the upper limb?
Brachial vein
ExplanationThe brachial vein is not a major superficial vein in the upper limb.
#9
What is the primary mechanism responsible for venous return to the heart?
Contraction of skeletal muscles surrounding the veins
ExplanationVenous return is primarily aided by the contraction of surrounding skeletal muscles.
#10
Which vein drains blood from the brain and returns it to the heart?
Jugular vein
ExplanationThe jugular vein drains blood from the brain back to the heart.
#11
What is the primary function of the venous sinuses in the body?
To store excess blood
ExplanationVenous sinuses function to store excess blood in the body.
#12
What is the venous system component that connects the superficial and deep venous networks in the lower limb?
Great saphenous vein
ExplanationThe great saphenous vein connects superficial and deep venous networks in the lower limb.
#13
Which vein is formed by the union of the basilic and cephalic veins?
Brachial vein
ExplanationThe brachial vein is not formed by the union of the basilic and cephalic veins.
#14
What is the main function of the venous plexus in the vertebral canal?
To provide venous drainage from the spinal cord
ExplanationVenous plexus in the vertebral canal provides venous drainage from the spinal cord.
#15
Which vein receives blood from the veins of the forearm and upper arm and empties into the axillary vein?
Cephalic vein
ExplanationThe cephalic vein receives blood from the forearm and upper arm, emptying into the axillary vein.
#16
Which vein is formed by the union of the dorsal digital veins of the hand?
Cephalic vein
ExplanationThe cephalic vein is formed by the union of the dorsal digital veins of the hand.