Asked by
Dhoom Mirza
on Dec 14, 2024
Verified
Which of the following would lead to relaxation of the precapillary sphincter?
A) Decreased tissue metabolism
B) Decreased O2 levels in tissue cells served by the capillary
C) Decreased CO2 concentration in the capillary bed
D) Decreased lactate production by cells in the capillary bed
E) Decreased nitric acid levels
Precapillary Sphincter
A band of smooth muscle that adjusts blood flow into capillaries mainly by contracting and relaxing, thereby regulating the passage of blood into tissues.
Lactate Production
Lactate production occurs during anaerobic respiration in muscles, where glucose is converted to lactate in the absence of sufficient oxygen, leading to muscle fatigue.
- Determine the variables that contribute to the obstruction of blood circulation in the cardiovascular system.
- Acknowledge how blood viscosity and the diameter of vessels affect cardiovascular resistance.
Verified Answer
HN
Learning Objectives
- Determine the variables that contribute to the obstruction of blood circulation in the cardiovascular system.
- Acknowledge how blood viscosity and the diameter of vessels affect cardiovascular resistance.