Simple Organs Flashcards
Two tissue types of simple organs
Epithelium attached to CT (through basement membrane between them)
CT provides nutrients to epithelium
List four simple organs of body
Mucous Membranes, Serous Membranes, Synovial Membrane, Cutaneous Membranes
Mucous membranes
Function, examples
Epithelium and CT
Line cavities that open directly to body’s exterior
also called mucosa of the digestive, urinary, respiratory, and reproductive systems
A) Epithelial layer (avascular) varies from simple squamous to pseudostratified (depends on the job of the system of the area)
B) CT layer (loose areolar-vascular) named the Lamina propria (only in the mucous membrane) nourishes epithelial cells
Serous Membranes
Function, example
Epithelium and CT
lines cavities that do not open to the exterior (if they were to open then our guts would spill)
ex) abdominal and chest cavities
Covers the exterior surface of organs in these cavities and the walls of these cavities
Also called serosa in the peritoneal cavity
Double membranes
continuous - each composed of epithelial layers often simple squamous next to serous cavity and CTs (aerolar), holding the epithelm to the underlying structure:
Parietal layer - against cavity wall
Visceral layer - against organ (attached)
Serous fluid between layers
- named for its location precardium (heart), pleura (lungs) and peritoneum (abdominal organs)
Pericardium
a part of serous membrane named for location:
heart
Pleura
a part of serous membrane named for location:
lung
e.g parietal (around wall) and visceral pleura (in wall)
Peritoneum
a part of serous membrane named for location:
abdominal organs
Synovial membranes
Where?
CT And Epithelium
in joints
CT = areolar CT
NO epithelium (only ONE tissue type!! - not organ
Cutaneous Membrane
Where?
CT and epithelium
skin
epithelium = stratified squamous (named the epidermis)
CT = areolar and dense irregular (named the dermis)
Visceral
Against organ
Parietal
Against cavity wall
