Muscle Tissue
Types: Skeletal-connected to skeleton
Cardiac-heart (pump blood)
Smooth-in digestive system (move food),
uterus
Function: contract to provide motion
Involuntary muscles-cardiac and smooth-cannot
control
Voluntary muscles-skeletal, pull on bones, produce
movement
Nervous Tissue
FXN: neurons receive and conduct electrochemical
impulses from one part of body to another
Location: Brain, spinal cord, nerves
Connective Tissue
FXN: protect, support, bind together other body
tissues
Characteristics: variation in blood supply, extracellular
matrix
Types/Location:
-Bone
-Cartilage-ear and spinal cord(discs)
-Dense connective tissue-lower layer of skin
-Loose connective tissue-protects organs, fat
-Reticular Connective Tissue-lymph nodes, spleen,
bone marrow
-Blood-connective tissue because it is cells surrounded
by non-living fluid matrix
Important facts:
1. connects all body parts
2. most abundant tissue type in body
3. consists of living cells surrounded by non-living
matrix
Epithelial Tissue:
FXN: protection, absorption, filtration, secretion
Location: covers all body surfaces, other layer of skin
and inside body to line cavities (digestive system)
Characteristics:
-close together
-at least one exposed surface
-lower surface rests on basement membrane
(connective tissue)
-no blood supply of their own, rely on diffusion
-regenerate easily on their own if well nourished
Tissue Repair:
Types-Regeneration, replacement of damaged tissue.
Fibrosis-repair by dense connective tissue
What happens-
1. Capillaries become permeable-increases blood
flow, formation of clot, holds edges together.
2. Granuation tissue forms-delicate tissue
composed of new capillaries, phagocytes dispose
of clot, builds scar tissue
3. Surface epithelium regenerates-beneath scab,
scab detaches, fully regenerated tissue, scar may
be visible
Exercise 5 pg. 49-54, use book and manual pg. 37-48
as reference.