Question

1. Briefly outline clearly how the anatomical features of blood vessels relate to their function. 2. Explain four ways through which the renal system contributes to homeostasis in mammals. 3. State two ways in which the lymphatic system complements the function of the cardiovascular system. 4. Blood glucose levels are maintained by the pancreas. Explain the action of the hormones and cells involved in maintaining blood glucose levels when the glucose levels are high and low. 5. Draw a neuron and label it. For each part you have labeled explain the function. 6. Explain how the digestion and absorption of lipids differ from that of protein/carbohydrates. 7. List and explain the function of the components of the conducting system of the heart.

it's urgent....please may i get the solutions in less than 2 hrs

Answer 1

1 Ans: All blood vessels are consist of a hollow passageway called lumen through which blood flows. Lumen of arteries are smaller when compared to veins that allow arteries to maintain blood pressure through the system. Larger arteries and veins consist of small blood vessels within their walls called as the vasa vasorum which nourishes vessels and remove waste from them.

2 Ans: 4 ways through which renal system maintain homeostasis are mentioned below-

• Regulate acid-base balance
• maintain the electrolyte concentration in body
• Control blood pressure
• Secrete hormones.

3 Ans: 2 ways are mentioned below-

• Lymphatic system remove interstitial fluid from tissues in case of leakage.
• Works as drainage system of body.

4 Ans: Pancreas beta cells secrete insulin that balances high blood glucose level. Pancreas alpgha cells also secrete glucagon to raise blood glucose level when it drops.