Human Anatomy and Physiology Answers

What is the structural classification of the nervous system? (10%- 4 marks for central and 6 marks for peripheral).

Name five possible ways whereby infected tissue may be modified to limit the spread of pathogen

List and indicate the functions of the major regions of the cerebral hemispheres, diencephalon, brain stem and cerebellum. (20%- 5 marks for each region).

List and indicate the functions of the major regions of the cerebral hemispheres, diencephalon, brain stem and cerebellum. (20%- 5 marks for each region).

A hypothetical drug binds with calcium in the bloodstream, making it unavailable to cells. 

A.     Explain the cellular effect this would have on skeletal muscle cells    What would the implications be on bone, and what system/mechanism in the body will try to compensate for the lower levels of calcium. How would it do so?

1. Increase of carbon dioxide concentration in inspired air，how does respiratory movement change? Why?

2. Cut the vagus nerve two sides， how does respiratory movement change? Why?

The third experiment

1. Increase of carbon dioxide concentration in inspired air，how does respiratory movement change? Why?

2. Cut the vagus nerve two sides， how does respiratory movement change? Why?

The fourth experiment

1. How does the amount of urine change after injection of 20% glucose 5ml? How is the mechanism?

2. How does the amount of urine change after injection of Furosemide? How is the mechanism?

The fifth experiment

1. To stimulate the complete depressor nerve(aortic nerve) and the end of the central and peripheral ends, blood pressure, what changes? And why?

2. Injection of 0.01% Noradrenaline 0.3ml, blood pressure, what changes? And why?

Describe 4 stages in which the mammalian heart pumps blood? (10)

How does the mammalian eye focus an image? In your description name the important physical structures in image formation, define the focal point and explain what accommodation is and why it's important? (30)

Why it's so difficult to localize sound with only one ear? How does having two ears help to localize sound? (10)