Connective Tissue Flashcards
orgin of all CT
mesenchyme
matrix
non-living portion made of fibers and ground substance
blood
types of fiber
collagen (thick/pink), elastic (purple/black), reticular (black/fine)
connective tissue proper
dense (aerola, adipose, reticular) or loose (regular, irregular, elastic)
adipose is made of
adipocytes, empty space is fat
looks bubble wrap
connective tissue proper loose
areolar is made of
fibroblasts, black specks are the nuclei
all 3 fiber types, many directions
connective tissue proper loose
reticular
net-like fibers
connective tissue proper loose
type of CT of aerola
connective tissue proper loose
aerola function (1)
cushions organs
aerola location (1)
Widely distributed under many epithelia, like wrapping around organs and capillaries
adipose is
connective tissue proper loose
adipose function (1)
- fuel reserves
- insulates against heat loss
- supports and protects organs
Adipose location (1)
- breasts
- around kidney
- under the dermis of the skin
reticular is
connective tissue proper loose
Reticular looks like
High proportion of reticular rivers and various types of blood cells
Students often mistake images of this for bone tissue
Reticular functions (1)
Forms a soft internal skeleton that supports embedded cells
reticular location (1)
Lymphoid organs (lymph nodes, bone marrow)
Regular is
connective tissue proper dense
Connective tissue proper dense-regular is composed of
Primarily composed of parallel collagen fibers, with some elastic fibers
Primary cell type is fibroblasts
Connective tissue proper dense-regular function (1)
Attach muscles to bones or other muscles
Attach bones to other bones
Withstand tensile stress when pulled in one direction
connective tissue proper dense-regular location (1)
ligaments, tendons
Connective tissue proper dense-irregular is composed of
Primarily composed of irregularly arranged collagen fibers, with some elastic fibers
Primarily cell type is fibroblasts
Some students confuse this with muscle tissues
connective tissue proper dense irregular function (1)
Withstand tension from multiple directions