Tissues

Question 0

Simple Cuboidal Epithelium

Answer 0

Single row of cube-shaped uniformly shaped cells
Location: kidney tubules, glandular organs, liver
Function: absorption, secretion (sweat, oil)

Question 1

Simple squamous epithelium

Answer 1

single layer of flat cells
Location: lungs (alveoli), inside heart & blood vessels
Function: rapid diffusion of substances, smooth lining, secretes serous fluid

Question 2

Simple Columnar Epithelium

Answer 2

Single row of tall, narrow cells 
Have goblet cells that secrete mucus
vertically oriented, oval nuclei
Location: stomach to intestines
Function: adsorption & secretion (mucus)

Question 3

Psuedostratified Epithelium

Answer 3

Only look stratified-all cells connect to basement membrane
nuclei give stratified look
cilia, not microvili
Location: respiratory passages
Function: secretes mucus & propels/traps dust particles from lungs

Question 4

Keratinized Stratified Squamous

Answer 4

multilayered, covered in compact, dead squamous cells packed w/ protein keratin
Location: forms epidermal layer of skin
Function: slows water loss, prevents organisms from reaching past the skin

Question 5

Non-keratinized stratified squamous

Answer 5

multi-layered squamous cells
Location: tongue, oral mucosa, esophagus, vagina
Function: lacks surface layer of dead cells forming abrasion resistant, moist, slippery layer

Question 6

Transitional Epithelium

Answer 6

multilayered epithelium with rounded surface cells that flatten when tissues are stretched
Location: urinary tract (kidney, ureter, bladder)
Function: stretches to allow filling or urinary tract

Question 7

Skeletal Muscle

Answer 7

long, cylindrical, un-branched cells with striations and multiple peripheral nuclei (multi-nucleated cells to allow for control)
a.k.a. muscle fibers
Location: skeletal muscles
Function: voluntary contractions

Question 8

Cardiac Muscle

Answer 8

short, branched (to provide strength) cells with striations and intercalated discs; one central nuclei per cell/myocyte
Location: heart
Function: involuntary contractions of the heart

Question 9

Smooth Muscle

Answer 9

short fusiform cells, non-striated, only one central nucleus
cells called fibers
Location: digestive tract, arteries (vasoconstriction), uterus, GI tract, pupil
Function: sustained contractions, propel food (peristalsis), birth

Question 10

Dense Regular connective tissue

Answer 10

densely packed, parallel fibers, can be wavy
Location: ligaments, tendons
Function: holds bones together, holds muscles to bones
can withstand unidirectional force

Question 11

Dense Irregular tissue

Answer 11

densely packed fibers in irregular direction (not parallel)
Location: Dermis & sheaths around cartilage & bone
Function: withstands stresses applied in all directions

Question 12

Elastic tissue

Answer 12

Not same as elastic cartilage
Usually ID as dark squiggly lines
Location: arterial walls
Function: stretching, allows for changes in blood flow

Question 13

Reticular Connective Tissue

Answer 13

loose network of reticular fibers & cells
Location: lymph nodes, spleen, thymus
Function: forms supportive frame for soft organs

Question 14

Areolar Tissue

Answer 14

loose arrangement of collagenous & elastic fibers, scattered cell types & abundant ground substance
Location: wrapping around many organs, sheets of tissue, between muscles. boundary layer btwn fat & muscles
Function: forms pathway for nerves & blood vessels, fascia btwn muscles

Question 15

Adipose Tissue

Answer 15

large empty-looking cells w/ thin margins; nucleus pressed against membrane
Location: fat below skin, breast tissue, surrounding organs
Function: energy, storage, insulation, cushioning

Question 16

Nervous Tissue

Answer 16

neuron-recieves electrochemical message via dendrites
soma-cell body
nucleus
glial cells-support cells for neurons