Podcast
Questions and Answers
Which layer of the blood vessel contains muscles for vasoconstriction and vasodilation?
Which layer of the blood vessel contains muscles for vasoconstriction and vasodilation?
- Tunica intima
- Internal elastic membrane
- Tunica media (correct)
- Tunica externa
Why do arteries and arterioles have thicker walls compared to veins and venules?
Why do arteries and arterioles have thicker walls compared to veins and venules?
- Larger diameter
- Higher pressure from pumped blood (correct)
- Due to the presence of valves
- To allow for greater oxygen exchange
Which vessels have smaller lumens - arteries or veins?
Which vessels have smaller lumens - arteries or veins?
- Arteries (correct)
- Veins
- Venules
- Arterioles
What is the function of vasa vasorum?
What is the function of vasa vasorum?
Where are the Nervi vasorum located?
Where are the Nervi vasorum located?
Which layer of the blood vessel is primarily collagenous fibers with some elastic fibers?
Which layer of the blood vessel is primarily collagenous fibers with some elastic fibers?
What is the main factor that affects blood pressure according to the text?
What is the main factor that affects blood pressure according to the text?
Where does filtration primarily occur in the capillary?
Where does filtration primarily occur in the capillary?
Which hormone is released by the kidneys in response to a drop in blood volume to maintain fluid volume and blood pressure?
Which hormone is released by the kidneys in response to a drop in blood volume to maintain fluid volume and blood pressure?
What is the function of angiotensin-converting enzyme (ACE) in the regulation of blood pressure?
What is the function of angiotensin-converting enzyme (ACE) in the regulation of blood pressure?
What is the primary function of Antidiuretic Hormone (ADH) when blood volume drops?
What is the primary function of Antidiuretic Hormone (ADH) when blood volume drops?
Which part of the brain is responsible for regulating vascular homeostasis through sympathetic, parasympathetic, and vasomotor control?
Which part of the brain is responsible for regulating vascular homeostasis through sympathetic, parasympathetic, and vasomotor control?
What is the function of the precapillary sphincters?
What is the function of the precapillary sphincters?
Which type of capillary has leaky walls and allows larger molecules to pass through?
Which type of capillary has leaky walls and allows larger molecules to pass through?
What is the primary difference between systolic and diastolic blood pressure?
What is the primary difference between systolic and diastolic blood pressure?
How is Mean Arterial Pressure (MAP) calculated?
How is Mean Arterial Pressure (MAP) calculated?
What does ischemia refer to in the context of blood flow?
What does ischemia refer to in the context of blood flow?
What is hypovolemia related to in terms of blood pressure?
What is hypovolemia related to in terms of blood pressure?
What effect does vascular disease have on arteries?
What effect does vascular disease have on arteries?
Why is maintaining compliance important in regulating blood pressure?
Why is maintaining compliance important in regulating blood pressure?
'Pulse' refers to what physiological phenomenon?
'Pulse' refers to what physiological phenomenon?
Why are precapillary sphincters usually closed?
Why are precapillary sphincters usually closed?
