Test 5 Flashcards
What are the 4 type of tissue
Epithelial
Connective
Muscle
Nerve
What are Epithelial tissue function
protection, diffusion, absorption, and secretion
What are some characteristic of Epithelial
1.Avascular
2. Nerve supply
3. Fastest cell replication rate
4. Has the most cell junctions
5. Mostly cells and very little matrix
What are the cell shapes of a Epithelial
Squamous-thin flat
Cuboidal- square
Columnar- taller than wide
Transitional-change shape due to tension
Another name of Epithelial
lining tissue
The Epithelial tissue adheres to connective tissue beneath it by the ______
Basement membrane
What’s the job of simple squamous
Diffusion
What’s the job of simple cuboidal or columnar
Absorption and secretion and some protection
What’s the job of stratified, squamous, cuboidal, and columnar
Absorption and secretion and protection
Connective Tissue functions
protection, structure, hemopoiesis, storage, immune system, blood clotting, and binding organs together
What are some characteristic of Connective
- Slower replication rate
- less cells and mostly matrix
- most have nerve supply
- Most abundant tissue
- Some is vascular and some isn’t
6.Fewest cell junctions
Different types of connective
Bone, ligaments, tendons, cartilage, adipose, blood
Muscle tissue functions
contract, produce force, body temp regulation, and control organ volume
Characteristics of Muscle tissue
- Replicate only during first couple years
- most vascular tissue in the body
- many cell junctions
- Many cells with little matrix
- Muscle fibers have nerve supply
Types of Muscle tissue
Skeletal, cardiac, and smooth (visceral)
What are the functions of nervous tissue
Send nerve impulses
Characteristics of nervous tissues
- neurons( slow to no replication and neuroglia ( can replicate
- nerve supply
- few junction but more than connective
- vascular
- little matrix
Neuroglia
cells that protect and support neurons
Tight Junction
fluid tight cells
Gap junctions
permits electrical and chemical signals to pass from cell to cell
Anorching junctions
hold cells tight together
Collagen fibers
very strong, resistant to stretching, found in bone, ligaments, tendons, cartilage.
Elastic fibers
provide strength and flexibilty found in skin, blood vessels, and lungs.
Fixed cells
cells that a set amount
Wandering cells
cells that have a variable amount that changes.
What are some fixed cells in connective tissue
Fibroblasts, Mast cells, and Macrophages
Fibroblasts
Cells that produce fibers
Mast cells
produce histamine that cause allergies and heparin which prevents blood from clotting
Macrophages
Function in phagocytosis fixed is some tissues
Muscle atrophy
when muscle fiber decrease in size due to non use or disease.
Muscle hypertrophy
when muscles increase in size
Thermogenesis
production of heat as the result of Muscle contraction and relaxation
Muscle fatigue
when a muscle fiber can no longer contract
Acting and myosin
two very important protein myofilaments found in muscle cells.
Dendrites
receive nerve impulses from other neurons
axon
relays nerve impulse from one neuron to another neuron, muscle, gland.
Bones
vascular and nerves
ligaments
nerves and avascular
tendons
nerves and avascular
cartilage
avascular and no nerves
adipose
nerves and vascular
Smooth muscle
one centered nucleus
Skeletal muscle
multinucleated
Cardiac muscle
one nucleus
