BIOS 255 2026 FINAL PAPER QUESTIONS
AND SOLUTIONS VERIFIED
◉Which layer of the blood vessel wall directly touches blood and
acts as a permeable membrane for the exchange of materials?
Tunica media
Tunica interna
Tunica adventitia
Tunica externa. Answer: Tunica interna
◉Which types of capillaries create an uninterrupted lining that
allows the passage of small substances via simple diffusion?
Continuous capillaries
Peritubular capillaries
Fenestrated capillaries
Sinusoidal capillaries. Answer: Continuous capillaries
◉Which artery is commonly used to measure blood pressure?
,Radial artery
Ulnar artery
Brachial artery
Subclavian artery. Answer: Brachial artery
◉Which of the following blood vessels carry oxygenated blood?
Select all that apply.
Aorta
Coronary sinus
Pulmonary veins
Umbilical artery
Radial artery. Answer: Aorta, pulmonary veins, & radial artery
◉Which of the following peripheral resistance factors can be
controlled quickly to adjust blood flow?
Vessel radius
Stroke volume
Blood viscosity
Vessel length. Answer: Vessel radius
, ◉What is the force that draws fluid back into the capillary at the
venous end?
Skeletal muscle pump
Thoracic pump
Blood hydrostatic pressure
Colloid osmotic pressure. Answer: Colloud osmotic pressure
◉When performing a physical assessment of the client in the early
stages of Hodgkin's disease (type of lymphatic cancer), which of the
following is most likely found by the nurse when palpating the
patient's lymph nodes?
Tender, movable, painless lymph nodes
Small, firm, painless lymph nodes
Enlarged, painless, firm lymph nodes
Fixed, hard, painful lymph nodes. Answer: Enlarged, painless, firm
lymph nodes
◉Select all locations that drain lymph into the right lymphatic duct.
Right ear
Right popliteal region
AND SOLUTIONS VERIFIED
◉Which layer of the blood vessel wall directly touches blood and
acts as a permeable membrane for the exchange of materials?
Tunica media
Tunica interna
Tunica adventitia
Tunica externa. Answer: Tunica interna
◉Which types of capillaries create an uninterrupted lining that
allows the passage of small substances via simple diffusion?
Continuous capillaries
Peritubular capillaries
Fenestrated capillaries
Sinusoidal capillaries. Answer: Continuous capillaries
◉Which artery is commonly used to measure blood pressure?
,Radial artery
Ulnar artery
Brachial artery
Subclavian artery. Answer: Brachial artery
◉Which of the following blood vessels carry oxygenated blood?
Select all that apply.
Aorta
Coronary sinus
Pulmonary veins
Umbilical artery
Radial artery. Answer: Aorta, pulmonary veins, & radial artery
◉Which of the following peripheral resistance factors can be
controlled quickly to adjust blood flow?
Vessel radius
Stroke volume
Blood viscosity
Vessel length. Answer: Vessel radius
, ◉What is the force that draws fluid back into the capillary at the
venous end?
Skeletal muscle pump
Thoracic pump
Blood hydrostatic pressure
Colloid osmotic pressure. Answer: Colloud osmotic pressure
◉When performing a physical assessment of the client in the early
stages of Hodgkin's disease (type of lymphatic cancer), which of the
following is most likely found by the nurse when palpating the
patient's lymph nodes?
Tender, movable, painless lymph nodes
Small, firm, painless lymph nodes
Enlarged, painless, firm lymph nodes
Fixed, hard, painful lymph nodes. Answer: Enlarged, painless, firm
lymph nodes
◉Select all locations that drain lymph into the right lymphatic duct.
Right ear
Right popliteal region
