TOB L2.1 INTERNAL SURFACES OF THE BODY Flashcards
1
Q
Stomach specific structure?
A
- Muscularis Externae - three layers
- Rugae, after ME - folds in stomach lining to increase surface area
2
Q
Serosa stucture?
A
- Connective tissue
- Simple squamous mesothelium
3
Q
Different layers? (four)
A
- Mucosa
- Submucosa
- Musuclaris Externae
- Serosa
4
Q
Sructure of the GI mucosa?
A
- Epithelium (varies)
- Lamnia Propria
- Aggregations of lymphocytes called Peyers Patches
- Mucosal Glands
- Muscularis mucosae
5
Q
Large intestine specific structures?
A
- Contains Crypts of Langerhans - tubular glands
6
Q
Structure of the muscularis externae?
A
- Inner Circular layer
- Outher longitudinal layer
7
Q
Structure of Trachea?
A
- cartilage
- no serosa
- cilliated collumnar cells
8
Q
Structure of the bronchiole?
A
- Epithelium (simple columnar cilliated - cuboidal)
- Smooth muscle layer
- Alveoli keep lumen open
- No cartilage
9
Q
Structure of the bronchus?
A
- Smooth muscle layer before sub mucosa
- Cartilage also present
10
Q
Structure of the alveoli?
A
- 90% simple squamous epithelium for gas exchange
- 10% simple cuboidal which secrete surfancant (separtes alveloi, increasing surface area)
- Macrophages destroy foreign material
11
Q
Three places a serous membrane would be found?
A
- Peritoneum
- Pleural Sacs
- Pericardial sacs
12
Q
Definition of a serous membrane?
A
Thin, two-part membrane which lines certain closed body cavities
13
Q
What is the structure of a standard internal mucosa?
A
- Epithelium lining lumen
- Lamnia Propria, adjacent layer of connective tissues
- Layer of smooth muscle called muscularis mucosae
14
Q
Structure of a serous membrane?
A
- A simple squamous epithelium which secretes watery lubricating fluid
- a thin layer of connective tissue which attaches epithelium to adjacent tissue
Viscral Serosa touching organ
Parietal Serosa on outside
15
Q
Three places a mucous membrane would be found?
A
- Alimentary tract
- Respiratory tract
- Urinary tract
