Quiz 3 Flashcards
What is a tissue
Describes a group of cells found together in the body
What is the main benefit to human of having tissue level organization?
It increases the efficiency of the body
Describe the structure and function of epithelial tissue
Sheets of cells that cover exterior surfaces of the body, lines internal cavities and passageways and forms certain glands
Describe the structure and function of connective tissue
Binds the cells and organs together. Is a protector, supporter and integrates all the parts of the body
Describe the structure and function of muscle tissue
Responds to different stimuli and contracts to provide movement of skeletal, cardiac and smooth muscles.
Describe the function and function of nervous tissue
Allows the propagation of electrical impulse signals to communicate between different regions of the body.
Compare and contrast the structure of the three types of connective tissue
- Proper connective: gel-like substance that consists of loose and dense connective tissue
- Supportive connective: calcified/solid substance (bone) and gel-like cartilage
- Fluid: liquid ground substance
Compare and contrast the structure of the three types of stratifies epithelium
- Squamous layer has an apical and basal layer
- Cuboidal layer is thicker and is more protective
- Columnar is tallest layer located nearest to the interior
Describe the structure and function of the seven main types of epithelial tissue
- Simple squamous: simple, single layered, flat and provides rapid passage of chemical compounds.
- Simple cuboidal: box-like cells are used for secretion and absorption of of molecules.
- Simple columnar: tall-like column are used in absorption and secretion of molecules.
- Stratified squamous: multilayer of squamous cells to protect against abrasion
- Stratified cuboidal: multilayered cuboidal cells used as protective tissue in sweat, salivary and mammary glands.
- Stratified columnar: multilayered columnar cells that is used to secrete and as a protection layer.
- Pseudo-stratified: irregularly shaped columnar cells and are used for. absorption and secretion of mucus and protection from foreign particles.
Compare and contrast the structure and function of simple squamous epithelium and stratified squamous epithelium
Simple is more thin and used for diffusion where the stratified is used as a protection layer
Compare and contrast the structure and function of simple squamous epithelium and simple columnar epithelium
Squamous is used for simple diffusion where
Compare and contrast the structure and function of simple squamous epithelium and simple cuboidal epithelium
Compare and contrast the structure and function of simple cuboidal epithelium and simple columnar epithelium
Compare and contrast the structure and function of simple cunzdial epithelium and stratified cuboidal epithelium
Explain the main functions of fluid connective tissue
Explain the main function of loose connective tissue
- Areolar (packing peanuts): wraps and cushions organs, protection, reservoir for water and salts
- Adipose: energy storage, space filler, surrounds blood vessels
Explain the main function of dense connective tissue
Attach muscles to bones or muscles and bone to bone (tendons or ligaments)
Explain the main functions of cartilage
Support, reinforce, cushions resist compressive stress
Explain the main functions of bone
Support and protect, provides levers for muscles, store calcium and fat
Compare and contrast the three types of muscle tissue structures
- Skeletal: long, striated, multiple nuclei
- Cardiac: branchy, strained, one nuclei
- Smooth: short spindle shape, non-striated, one nuclei
Compare and contrast how the three types of muscle tissues are controlled
- Skeletal: voluntary
- Cardiac: involuntary
- Smooth: involuntary
Compare and contrast the functions of the three types of muscle tissues
- Skeletal: contract to produce voluntary movement
- Cardiac: responsible for involuntary movement of heart
- Smooth: contract to perform involuntary movement of hollow organs
Name and describe the functions of both of the of the two main cell types in the nervous tissue
- Neurons are responsible for communicating through electrical signals
- Glial cells are supportive cells that allow neuron function
Name and describe the general cell shape of both of the of the two main cell types in the nervous tissue
- Neurons: cell body, dendrites, synapse
- densely packed cell bodies
