Summary
Summary Homeostasis and it’s role in the body
- Course
- Institution
Summary of 1 pages for the course Introduction to Health Sciences at City (Homeostasis)
[Show more]
Seller
Follow
fabbihayasmin
Content preview
HOMEOSTASIS- The body's ability to maintain a stable internal environment despite the unpredicted environments
-Homeostasis is controlled by the nervous system and endocrine system, acting together or independently
Nervous system: Endocrine system:
detects changes + nerve impulses regulates homeostasis hormones work
sends nerve impulses cause rapid changes by secreting hormones more slowly
to counteract the each monitored variable like body
disruption temperature, blood pressure,
Feedback systems: blood glucose level, are known as
controlled conditions
a feedback system (feedback loop) is a cycle of events where the status
of a body condition is continually monitored and fed back to a central
control region
it has three basic components:
receptor reacts to a change in the body by sending a message to the central nervous
system
control centre evaluates the input and generates an output
any disruption that changes a
effector receives output and produces a response controlled condition is called a
stimulus
Negative feedback Positive feedback
-reverses a change in a controlled condition -strengthens/reinforces a change
-most common feedback in the body -least common feedback in the body
-the response is to return the -the control centre provides
disturbance back to within the commands to an effector to create
normal limits for the variable. further disturbance rather than
-examples include Temperature opposing the original stimulus
control, Blood glucose control, -examples include Labour in
Blood pH, CO2/O2 levels, childbirth, Milk let down
Heart rate, Blood pressure reflex in breast feeding,
control Blood clotting
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller fabbihayasmin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.67. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
51056 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 15 years now