Which of the following areas of the body has the highest concentration of capillary beds?

• A. Skeletal muscle.
• B. Joints.
• C. Connective tissue.
• D. Cartilage.

Answer: (A)

Verified step by step guidance

1. Understand the function of capillary beds: Capillary beds are networks of capillaries that facilitate the exchange of oxygen, nutrients, and waste products between blood and tissues.
2. Consider the metabolic activity of each area: Areas with higher metabolic activity require more oxygen and nutrients, thus having a higher concentration of capillary beds.
3. Evaluate skeletal muscle: Skeletal muscles are highly active tissues, especially during physical activity, requiring a significant blood supply to meet their metabolic demands.
4. Assess joints: While joints are important for movement, they do not have as high a metabolic rate as skeletal muscles, thus having fewer capillary beds.
5. Analyze connective tissue and cartilage: These tissues generally have lower metabolic activity compared to skeletal muscle, resulting in fewer capillary beds.