NURS1023 - Bioscience for Nursing and Midwifery

Assignment Task

Aim

The aim of this assessment is for students to develop knowledge of the function and importance of healthy body systems in an individual. It focuses on homeostasis, the cardiovascular system and importance of nutrition in maintaining a healthy body. Skills being developed include researching, writing, referencing, and presenting information in a logical, clear, and concise written format.

Details

All information obtained from resources MUST be appropriately referenced both in-text and in the reference list. You must follow the American Psychological Association (APA) (7th ed) referencing style which is available from the Western Sydney University Library website and the Bioscience 1 vUWS site.

Responses to each question are to be typed into a Word document, with name and Student ID number at top of the first page. See page 10 of Learning Guide for additional instructions.

Using ONLY the stipulated resources listed after the assessment questions, answer the following questions. Ensure appropriate intext references are used throughout all answers. You must use a minimum of four of the stipulated resources.

Question

1. An important aspect of homeostasis is maintaining a normal body temperature. Answer the following questions:

a) What is the normal body temperature range (using correct units of measurement), and explain why normal body temperature range is important for the maintenance of biochemical processes in the body?

b) Describe the steps in the homeostatic feedback system activated to ensure normal body temperature is maintained when exposed to a hot external temperature (e.g., 42 degrees Celsius).

2. Using the below image, describe the components and conduction pathway of the cardiac conduction system of the heart. Relate the conduction system to the corresponding sequence of heart chamber contractions and production of a blood pressure reading

3. Vitamin B12 is an essential nutrient that is important for normal development and health. Please answer the following:

a) Name two (2) food sources high in vitamin B12.

b) Identify any two (2) functions of vitamin B12 in the body.

c) identify where in the digestive tract vitamin B12 is absorbed, and what substance is necessary for its absorption?

d) A lack of vitamin B12 can have certain health consequences. Explain the possible consequences to red blood cells if there is deficiency in vitamin B12.

e) Name two (2) groups of people that are more likely to be at risk of becoming deficient in vitamin B12 and for each group, state why this would happen.

4. Identify three (3) structural features of red blood cells and relate to their function in oxygen transportation.

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