Class notes
Bio 123 Chapter 7- Skin and Membranes
- Course
- Bio123
- Institution
- Farmingdale State College
This is a comprehensive and detailed note on Chapter 7- Skin and Membranes
[Show more]
Content preview
Chapter 7- Skin and MembranesWednesday, February 12, 2020 12:11 PM
7.1 classification of body membranes and skin structure
Body membranes
- Thin sheets of tissue that cover!
- Cover the body
- Line body cavities
- Cover organs within the cavities
- Can be categorized into epithelial and connective tissue membrane
Purpose of membranes
- Protect and make fluids to lubricate spaces
- Cushions and reduces friction against neighboring structures
Classification of body membranes
- Epithelial membranes
○ Composed of epithelial tissue and an underlying layer of connective tissue
- Connective tissue membranes
○ Composed of various types of connective tissue
,Epithelial
- Mucous membrane: Secretes mucous
- Line body surfaces that open directly to the exterior environment
- Produce mucus, a thick secretion that keeps the membranes soft and moist
- Important for trapping unwanted particles
-
- Cutaneous membrane: The skin
- Serous membranes: Line body cavities and organs
○ Secrete a thin, watery fluid
○ Lubricant helps reduce friction when organs rub against one another and cav
○ 2 layered membrane
□ Inner membrane covers organs – Visceral layer
□ Outer portion covers the body wall – Parietal layer
○ Tissue lining ventral cavity
○ 2 layered membrane
□ Inner membrane covers organs – Visceral
□ Outer portion covers the body wall – Parietal
, Dorsal cavity membranes
- Meninges
Ventral cavity
- Thoracic cavity
○ Pericardial cavity (mediastinum): Midportion of thoracic cavity; heart
○ Pleural cavities: Right lung located in right pleural cavity; left lung in left pleur
○ Lungs = pleura
H t d
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 anyiamgeorge19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now