ANP 1105 Final Exam 2024/2025 Exam
Questions and Corresponding Answers
with Surety of 100% Pass Mark
What are the 3 layers of blood vessels? - 🧠ANSWER ✔✔Tunica intima,
tunica media and tunica externa
Innermost tunica intima - 🧠ANSWER ✔✔Simple squamous epithelium to
allow a low friction surface
Middle tunica media - 🧠ANSWER ✔✔Smooth muscle and elastic tissue to
control the diameter
Outermost tunica externa - 🧠ANSWER ✔✔Nerve and elastic fibers
Vasa vasorum - 🧠ANSWER ✔✔Tiny blood vessels that supply blood for
larger ones
Vasoconstriction - 🧠ANSWER ✔✔Smooth muscle constricts to decrease
the diameter
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,Vasodilation - 🧠ANSWER ✔✔Smooth muscle relaxes to increase the
diameter
Elastic arteries - 🧠ANSWER ✔✔Thick walled and near the heart. They
have the largest lumens and are considered to be the conducting vessels
(send blood from heart to medium arteries)
Atherosclerosis - 🧠ANSWER ✔✔Hardening of the arteries. Blood flow
gushes/trickles as the heart beats, causing the vessel walls to weaken or
eventually balloon out (aneurysm), or burst
Muscular arteries - 🧠ANSWER ✔✔Considered to be the distributing
vessels (deliver blood to organs). Diameter ranges greatly
Arterioles - 🧠ANSWER ✔✔The resistance vessels: diameter determines
blood flow to capillaries as a mechanism of homeostasis that responds to
neural, hormonal, and chemical influences
Capillaries - 🧠ANSWER ✔✔Microscopic vessels with thin walls. They allow
the exchange of gasses, nutrients and hormones between the blood and
the interstitial fluid (then to the tissues)
Continuous capillaries - 🧠ANSWER ✔✔Least permeable and most
common
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, Fenestrated capillaries - 🧠ANSWER ✔✔Fenestrations increase
permeability
Sinusoid capillaries - 🧠ANSWER ✔✔Most permeable to allow large cells to
pass. Incomplete basement membrane and large intercellular cleft
Capillary beds - 🧠ANSWER ✔✔Connections between terminal arterioles
and postcapillary venules. True capillaries are the exchange vessels and
the vascular shunt (thoroughfare channel) bypasses tissue cells
Precapillary sphincter - 🧠ANSWER ✔✔A smooth muscle cuff that regulates
blood flow (like a valve)
Veins - 🧠ANSWER ✔✔Return blood to the heart from the venules. Have
thin walls because of the low pressure, and large lumens so that blood can
be returned to the heart at the same rate that it is pumped out
Venous valves - 🧠ANSWER ✔✔Prevent blood from flowing backwards,
made from folds of tunica intima and are mostly in the lower limbs
Venous sinuses - 🧠ANSWER ✔✔Specialized veins with thick endothelium
walls (example is the coronary sinus)
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
Questions and Corresponding Answers
with Surety of 100% Pass Mark
What are the 3 layers of blood vessels? - 🧠ANSWER ✔✔Tunica intima,
tunica media and tunica externa
Innermost tunica intima - 🧠ANSWER ✔✔Simple squamous epithelium to
allow a low friction surface
Middle tunica media - 🧠ANSWER ✔✔Smooth muscle and elastic tissue to
control the diameter
Outermost tunica externa - 🧠ANSWER ✔✔Nerve and elastic fibers
Vasa vasorum - 🧠ANSWER ✔✔Tiny blood vessels that supply blood for
larger ones
Vasoconstriction - 🧠ANSWER ✔✔Smooth muscle constricts to decrease
the diameter
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,Vasodilation - 🧠ANSWER ✔✔Smooth muscle relaxes to increase the
diameter
Elastic arteries - 🧠ANSWER ✔✔Thick walled and near the heart. They
have the largest lumens and are considered to be the conducting vessels
(send blood from heart to medium arteries)
Atherosclerosis - 🧠ANSWER ✔✔Hardening of the arteries. Blood flow
gushes/trickles as the heart beats, causing the vessel walls to weaken or
eventually balloon out (aneurysm), or burst
Muscular arteries - 🧠ANSWER ✔✔Considered to be the distributing
vessels (deliver blood to organs). Diameter ranges greatly
Arterioles - 🧠ANSWER ✔✔The resistance vessels: diameter determines
blood flow to capillaries as a mechanism of homeostasis that responds to
neural, hormonal, and chemical influences
Capillaries - 🧠ANSWER ✔✔Microscopic vessels with thin walls. They allow
the exchange of gasses, nutrients and hormones between the blood and
the interstitial fluid (then to the tissues)
Continuous capillaries - 🧠ANSWER ✔✔Least permeable and most
common
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, Fenestrated capillaries - 🧠ANSWER ✔✔Fenestrations increase
permeability
Sinusoid capillaries - 🧠ANSWER ✔✔Most permeable to allow large cells to
pass. Incomplete basement membrane and large intercellular cleft
Capillary beds - 🧠ANSWER ✔✔Connections between terminal arterioles
and postcapillary venules. True capillaries are the exchange vessels and
the vascular shunt (thoroughfare channel) bypasses tissue cells
Precapillary sphincter - 🧠ANSWER ✔✔A smooth muscle cuff that regulates
blood flow (like a valve)
Veins - 🧠ANSWER ✔✔Return blood to the heart from the venules. Have
thin walls because of the low pressure, and large lumens so that blood can
be returned to the heart at the same rate that it is pumped out
Venous valves - 🧠ANSWER ✔✔Prevent blood from flowing backwards,
made from folds of tunica intima and are mostly in the lower limbs
Venous sinuses - 🧠ANSWER ✔✔Specialized veins with thick endothelium
walls (example is the coronary sinus)
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
