NZQA registered unit standard
12731 version 4
Page 1 of 3
Title
Describe the urinary system of the human body
Level
4
Credits
2
Purpose
People credited with this unit standard are able to describe the
normal structure and function of the urinary system, and the
formation, composition, storage, and excretion of urine.
Classification
Health, Disability, and Aged Support > Core Health
Available grade
Achieved
Explanatory notes
1
Reference
Marieb, E.N. (2010). Essentials of human anatomy and physiology (10th ed.). San
Francisco, CA: Pearson/Benjamin Cummings.
2
As the content of this unit standard is largely informational, evidence requirements
assume that knowledge will be acquired from the reference text in conjunction with
models and other information-bearing media. In this regard it is expected that
outcomes and evidence will be in accordance with the reference text.
3
Definition
Normal structure and function refers to structure and function which are not impaired
by abnormalities or dysfunction.
Outcomes and evidence requirements
Outcome 1
Describe the normal structure and function of the urinary system.
Evidence requirements
1.1
The structure, location and function of the organs of the urinary system are
described.
Range
1.2
kidneys, ureters, bladder, urethra.
The general functions of the urinary system are described.
Range
water balance, electrolyte balance, removal of waste products.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
1.3
12731 version 4
Page 2 of 3
The structure of the nephron is described.
nephron – glomerular/Bowman's capsule, proximal convoluted
tubule, loop of Henle, distal convoluted tubule, collecting duct;
blood vessels – afferent arteriole, glomerulus, efferent arteriole,
peritubular capillaries.
Range
Outcome 2
Describe the formation, composition, storage, and excretion of urine.
Evidence requirements
2.1
The formation of urine in the nephron is described.
Range
2.2
filtration, selective reabsorption, secretion.
Normal urine is described.
Range
2.3
appearance, odour, specific gravity, pH, volume, constituents.
Regulation of the volume of urine produced is described.
Range
2.4
antidiuretic hormone and aldosterone.
The normal storage and excretion of urine is described.
Range
bladder, reflex and conscious nerve impulses, urethral sphincters,
bladder and abdominal muscles.
Planned review date
31 December 2017
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
23 October 1998
31 December 2012
Review
2
26 May 2004
31 December 2012
Review
3
20 March 2008
31 December 2012
Review
4
20 September 2012
N/A
Consent and Moderation Requirements (CMR) reference
0024
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
12731 version 4
Page 3 of 3
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Community Support Services ITO Limited info@careerforce.org.nz if
you wish to suggest changes to the content of this unit standard.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016