Tissue Flashcards
What are four main types of tissues?
Epithelium, muscle, nervous, connective
Function of epithelium
Lines, protects, secretion, absorption, sensory reception, filtration, excretion
What is the function of muscle tissue?
Contraction for movement,
What are the three main types of muscle tissue?
Skeletal muscle, cardiac muscle and smooth muscle
Which muscle type is voluntary in, which is involuntary
Skeletal muscle is voluntary. Cardiac and smooth muscle are involuntary.
What is the function of smooth muscle contraction?
Help mood food down digestive tract
Is muscle tissue vascular? Is it innervated
Yes, muscle tissue is highly vascular and innervated
Is muscle tissue vascular? Is it innervated
Yes, muscle tissue is highly vascular and innervated
Describe properties of skeletal muscle
Voluntary, Striated, multi- nucleated
Describe properties of skeletal muscle
Voluntary, Striated, multi- nucleated
Describe nervous tissue
Excitable tissue used to send short-term signals throughout the body
How can you differentiate between tissues?
Cell type, characteristics of extracellular, matrix, differences in space taken by cells versus matrix
Describe properties of cardiac muscle
Involuntary, one nucleus, intercalated discs, and found in the heart
Describe properties of smooth muscle
Involuntary, non-striated, one nucleus, and found in hollow organs in blood vessels
Describe properties of nervous tissue
Used for communication, nerve cells found in brain, spinal cord, and nerves
What are the four main classes of connective tissue?
Connective tissue proper, cartilage, bone, blood
What three elements make up connective tissue
Ground substance, fibers, cellular components
What is the function of collagen?
Gives tensile strength
What is the function of elastin?
Stretch and recoil like a rubber band
What is the function of reticular fibers?
Use its branches to provide strength in many directions
What are the fibers of connective tissue?
Collagen, elastin, reticular fibers
What are the fibers of connective tissue?
Collagen, elastin, reticular fibers
Connective tissue fiber that forms a triple helix, and is the most abundant of all fibers
Collagen
What are proteoglycans and what is their function
A protein plus a sugar that traps water and varying amounts affecting the viscosity of the extracellular matrix (ground substance)
What is the ground substance?
Also called the extra cellular matrix, it is the unstructured material that fill space between cells
What are some characteristics of connective tissue that all have
Must have a Mesenchyme, varying degrees of vascularity and have an extra cellular matrix that is made up of ground substance plus any of the three fibers
What are “blast cells”
Cells that secrete ground substance and fibers
Describe where you can find fibroblasts, chondroblasts, osteoblasts, and hematopoietic stem cells
Fibroblasts- produce fiber and ground substance and always found in connective tissue
Chondroblasts- found in cartilage
Osteoblasts- found in bone
hematopoietic stem cells- synthesizing blood in bone marrow
What are plasma cells?
They synthesize antibodies
What is the function of mast cells?
Initiate inflammatory response
What are adipocytes and what is their function?
Fat cells in adipose tissue and they store glycerides
What is a Mesenchymal cell?
And undecided, stem cell with the ability to turn into a bunch of different cells