Tissues

Question 1

epithelial tissue

Answer 1

forms boundaries between different environments, protects, secretes, absorbs, filters, lubricate, digestion, transportation, excretion, sensory reception, reproduction

Question 2

muscle tissue

Answer 2

contracts to cause movement

Question 3

nervous tissue

Answer 3

internal communication

Question 4

connective tissue

Answer 4

supports, protects, binds other tissues together (bones, tendons, fats, other soft padding tissue)

Question 5

2 types of epithelial tissue

Answer 5

glandular and lining

Question 6

features of epithelial tissue

Answer 6

closely packed, many cell junctions, little ECM, sits on a basement membrane, avascular, good nerve supply, high mitotic rate

Question 7

simple squamous

Answer 7

single layer of flat cells; sparse cytoplasm; materials can diffuse, filter secrete lubricants; air sacs of lungs

Question 8

simple cuboidal/columnar

Answer 8

more cytoplasm, good for secretion and absorption, may have cilia, kidney tubules and digestive tract lining

Question 9

pseudostratified columnar

Answer 9

different heights of somata, mucus secretion and propulsion, ciliated in trachea and upper respiratory tract

Question 10

stratified squamous

Answer 10

thick protective layer, skin epidermis, vagina, esophagus, mouth

Question 11

transitional

Answer 11

stratified squamous and cuboidal, stretchy , bladder

Question 12

holocrine

Answer 12

cell lyses to secrete substance (sebaceous gland)

Question 13

mesocrine

Answer 13

exocytosis to secrete substance (pancreas, sweat, salivary)

Question 14

2 types of exocrine glands

Answer 14

simple duct
compound duct
both may be tubular or alveolar

Question 15

types of connective tissue

Answer 15

muscle, bone, blood, lymph, cartilage, connective tissue proper

Question 16

3 types of dense connective tissue

Answer 16

elastic, regular, irregular

Question 17

3 types of loose connective tissue

Answer 17

areolar, reticular, adipose

Question 18

features of connective tissue

Answer 18

nerve supply, vascular (except cartilage and tendons), more ECM than epithelia.

Question 19

3 types of fibers

Answer 19

collagen, elastic, reticular

Question 20

areolar loose connective tissue

Answer 20

surrounds organs, fibroblasts, all 3 fiber types, contains macrophages, important for inflammation response, lamina propia

Question 21

adipose loose connective tissue

Answer 21

cushioning, insulation, food source. Example: mammary tissue. nucleus pushed to the side by fat droplets, located in hypodermis

Question 22

reticular loose connective tissue

Answer 22

soft internal skeleton, spleen, lymph organs

Question 23

dense connective tissue regular

Answer 23

tendons, ligaments, unidirectional tensile strength

Question 24

dense connective tissue irregular

Answer 24

capsule for joints, multidirectional tensile strength

Question 25

dense connective tissue elastic

Answer 25

flexible, coverings of large arteries

Question 26

hyaline cartilage

Answer 26

forms structure of nose, trachea, larynx, costal cartilage on ribs, has lots of collagen fibers. supports, cushions, reinforces. Cell is the chondrocytes/blasts

Question 27

3 types of cartilage

Answer 27

hyaline, fibrocartilage, elastic

Question 28

elastic cartilage

Answer 28

stretchy but maintains structure, pinna of ear

Question 29

fibrocartilage

Answer 29

tensile strength wit shock absorption, intervertebral discs, knee discs

Question 30

bone

Answer 30

hard, calcified matrix. Produces blood cells in marrow, stores minerals and fat, structural support, lever for skeletal muscles, well vascularized

Question 31

myofilaments

Answer 31

bring about movement or contraction of cells to create change in body/organ

Question 32

skeletal muscle

Answer 32

long, striated cylindrical multinucelate cells, voluntary movement, attached to bones or sometimes skin

Question 33

cardiac muscles

Answer 33

involuntary. branching, striated, uninucleate that interdigitate at specialized junctions (intercalated discs). propels blood into circulation as it contracts. located in walls of heart

Question 34

smooth muscle

Answer 34

involuntary, no striations, spindle shaped cells with central nuclei, cells closely arranged to form sheets. propels substances like food, urine, a baby along internal passageways. found in most walls of hollow organs