Word count/duration: There is a word limit of 1200 words. Use your computer to total the number of words used in your assignment. However, do not       include the reference list at the end of your assignment in the word count. In-text citations will be included in the additional 10%-word count. If you exceed the word limit by more than 10% the marker will stop marking at 1200 words plus 10%.

Aim of Assessment: 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

IMPORTANT - 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.

Q1. 400 words, 25 marks.

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).

Q2. 450 words, 30 marks.

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. Image modified from Marieb & Hoehn, (2019). Human anatomy & physiology. (11th ed) Global edition. Pearson.

Q3. Vitamin B12 is an essential nutrient that is important for normal development and health. Please answer the following: 200 words, 15 marks.

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.

Q4. 150 words, 10 marks.

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

ONLY the following resources can be used for this assessment. They are accessible via Readings & Resources or Library website. Amerman, E. C. (2019). Human anatomy & physiology (2nd ed. Global ed.). Pearson.

Herlihy, B. (2018). The human body in health and illness (6th ed.). Elsevier.

Marieb, E. N., & Hoehn, K. (2019). Human anatomy & physiology (11th global ed.). Pearson.

McVicar, A., & Clancy, J. (2017). Physiology and anatomy for nurses and healthcare practitioners: A homeostatic approach (3rd ed.) CRC Press. Patton, K. T., Thibodeau, G. A., & Hutton, A. (2019). Anatomy & physiology (adapted International ed.). Elsevier.

Peate, I., & Nair M. (2016). Fundamentals of anatomy and physiology: For nursing and healthcare students (2nd ed.).  Wiley.

Scanlon, V., & Sanders, T. (2019). Essentials of anatomy and physiology (8th ed.). F.A. Davis Company.

Schub,T., Marcel, C. & Pravikoff, D. (2018, September 28). Vitamin B12 [Evidence-Based Care Sheet]. Nursing Reference Center Plus. Solomon, E. P. (2016). Introduction to human anatomy and physiology (4th ed.). Elsevier.

Link to access the Vitamin B12 Evidence-based Care Sheet is:https://search-ebscohost-

com.ezproxy.uws.edu.au/login.aspx?direct=true&db=nup&AN=T706437&site=nup-live&scope=site

Marking Criteria