Membranes Flashcards
all membranes are composed of two types of tissue expect which type of membranes?
Synovial (in joints)
What type of tissue are synovial membranes composed of?
Connective tissue
Cutaneous membrane
skin
membrane that lines body cavities exposed to exterior
mucous membranes
where are mucous membranes found?
stomach and trachea.
keratinized=
dead
what does serous fluid do?
reduces friction between the walls of the cavities and the internal organs.
example of serosa
peritoneum, pericardium, and pleura.
what do cutaneous membranes connect
keratinzed stratified squamous epithelium and dense irregular connective tissue
what do mucous membranes connect
stratified squamous or simple columnar epithelium and areolar (loose) connective tissue
what membranes are moist?
mucous and serous
what do serous membranes connect?
simple squamous epithelium and areolar (loose) connective tissue
which membranes line closed ventral body cavities?
serous
are serous membranes moist?
yes
what do serous membranes secrete?
serous fluid
belongs to cavity
parietal
belongs to organ
visceral
what does the fluid between the parietal and visceral layer do?
allow them to slip past each other
lubricating fluid that is viscous and allows for sliding between adjacent tissue layers
Hyaluronic acid
what membrane contains no epithelium
synovial membrane
lines cavity of joints
synovial membrane
what do synovial membranes secrete?
synovial fluid
what are three ways in which tissues defend our body
mechanical barriers, cilia, and chemical barriers
example of mechanical barriers
skin and mucosae
how are cilia helpful?
they can trap things and move them so they can be expelled from the body
examples of chemical barriers helping us
cutaneous membrane has acid that will kill whatever is there and the stomach has chemicals that will try to kill toxins
tissue being replaced with same kind of tissue
regeneration
tissue is replaced with connective tissue
fibrosis
what 5 major things happen in inflammation
- ) chemicals released by mast cells and macrophages
- ) these chemicals cause the capillaries to dilate and become more permeable
- ) white blood cells and plasma fluids leak into injured area
- ) plasma fluids have clotting proteins which construct a clot
- ) scab forms
what are the 4 signs of inflammation from
the capillaries becoming dilated
plasma fluids have what
clotting proteins
WBCs become…..
phagocytic
what 5 major things happen during organization
- ) blood clot is replaced by granulation tissue
- ) new capillary bed is established
- ) fibroblasts close margin of the wound (by secreting growth factors and collagen fibers)
- ) macrophages digest blood clot
- ) collagen fibers deposited.
factors that affect tissue repair
circulation, age, and nutrition (need protein to make collagen fibers and need vitamins)
healing of epithelial tissue
vitamin a
repair of heart or nervous tissue
vitamin b
connective tissue/blood vessels
vitamin c
bones
vit d
prevents fibrosis (scarring)
vit e
assists in blood clotting
vit k
forms nervous tissue
ectoderm
forms epidermis
ectoderm
gives us connective tissue
mesoderm
hollow ball of cells
blastula
gives us mescle
mesoderm
mucosae and serosae come from this layer
endoderm
