Lab #2 quiz

Question 1

material between the cells

Answer 1

extracellular matrix or matrix

Question 2

what is Connective tissue characterized by?

Answer 2

by having few cells and a large amount of material between cells called the extracellular matrix

Question 3

depending on the type of tissue, what may the extracellular matrix be?

Answer 3

fluid, gelatinous, semisolid or solid

Question 4

besides he large amount matrix in connective tissue what else do you find between the cells?

Answer 4

fibers

Question 5

3 types of fibers found in connective tissue

Answer 5

1) collagen fibers
2) elastic fibers
3) reticular fibers

Question 6

what are the characteristics of collagen fibers in connective tissue

Answer 6

very strong and have a fine, rope-like structure.

Question 7

what type of strength do collagen fibers have?

Answer 7

great tensile (tension) strength and resist pulling forces.

Question 8

what are the characteristics of elastic fibers in connective tissue?

Answer 8

they are able to stretch and return to their original shape

Question 9

what type of areas of the body are elastic fibers found?

Answer 9

in areas that need to be able to stretch and rebound without breaking

Question 10

what are the characteristics of reticular fibers?

Answer 10

very fine and arranged into branching networks within soft organs of the body

Question 11

what are the variety of cells found in connective tissue? (6) (FMMMWP)

Answer 11

1) fibroblasts
2) mesechymal cells
3) macrophages
4) mast cells
5) white blood cells
6) plasma cells

Question 12

what is the most common connective tissue cell what is it responsible for?

Answer 12

fibroblasts and is responsible for the production of fibers and the matrix

Question 13

what are connective tissues divided into?

Answer 13

categories based upon its composition.

Question 14

what is the first major distinction of connective tissue?

Answer 14

loose connective tissue vs. dense connective tissue

Question 15

what is the differentiation of loose connective tissue vs. dense connective tissue based on?

Answer 15

the number of fibers present in the tissue, loose connective tissue have fewer fibers while dense connective tissue have many fibers tightly packed together.

Question 16

what is a second distinction between connective tissues?

Answer 16

cartilage and bone, they are harder and denser than other connective tissues

Question 17

a fluid connective tissue

Answer 17

blood

Question 18

what is the matrix in blood?

Answer 18

a liquid (plasma) rather than being solid or semi-solid

Question 19

what does adipose connective tissue consist of?

Answer 19

modified connective tissue cells specialized for storage of lipid molecules

Question 20

what do most adipose connective tissue look like?

Answer 20

empty cells

Question 21

why do most adipose connective tissue look like empty cells?

Answer 21

because chemical used to prepare the slides dissolve lipid materials.

Question 22

body locations where adipose tissue can be found

Answer 22

1) hypodermis
2) surrounding the kidneys
3) surrounding the eyeballs
4) yellow bone marrow

Question 23

what type of connective tissue is Areolar and what does it act as?

Answer 23

a loose, irregular connective tissue that acts as a general packing material in our bodies

Question 24

why is Areolar connective tissue irregular tissue?

Answer 24

because the connective tissue fibers run in all directions, allowing it to withstand forces from many directions

Question 25

what else should be noted in Areolar connective tissue?

Answer 25

fibroblasts scattered amongst the fibers

Question 26

body locations where Areolar Connective tissue can be found

Answer 26

1) within the dermis 2) between muscles 3) around blood vessels and nerves

Question 27

what is reticular connective tissue characterized by?

Answer 27

the presence of a three-dimensional, interlacing network of reticular fibers associated with reticular cells

Question 28

are reticular cells typically visible?

Answer 28

no

Question 29

why are reticular cells not typically not visible?

Answer 29

due to the abundance of other cells present

Question 30

what forms for support of the reticular tissue?

Answer 30

interlocking fibers form a stroma framework

Question 31

body locations where reticula connective tissue is found

Answer 31

1) liver 2) kidney 3) spleen 4) lymph nodes 5) red bone marrow

Question 32

what is dense regular connective tissue characterized by?

Answer 32

having densely packed collagen fibers that are all oriented in the same direction

Question 33

what will you find between the collagen fibers in dense regular connective tissue?

Answer 33

scattered fibroblasts

Question 34

body locations where dense regular connective tissue is found

Answer 34

1) tendons and aponeuroses | 2) most ligaments

Question 35

what is dense irregular connective tissue characterized by?

Answer 35

having densely packed collagen fibers that are irregularly arranged with few fibroblasts between them

Question 36

what does the shape of dense irregular connective tissue allow?

Answer 36

to withstand pulling forces from many directions

Question 37

body locations where dense irregular connective tissue can be found

Answer 37

1) organ capsules 2) dermis 3) periosteum 4) perichondrium

Question 38

what does hyaline cartilage contain?

Answer 38

a dense network of fibers imbedded in a gel-like matrix

Question 39

what type of fibers does hyaline cartilage have?

Answer 39

collagen fibers but these fibers have the same refractive index as the matrix and will not be visible

Question 40

what are the cartilage cells in hyaline cartilage known as?

Answer 40

chondrocytes

Question 41

where are the chdonrocytes located?

Answer 41

in isolated spaces called lacunae

Question 42

in hyaline cartilage what is chondrocytes and lacunae characterizing?

Answer 42

chondrocytes is the cell and lacunae is the structure

Question 43

what will fibrocartilage have?

Answer 43

many bundles of collagen fibers visible in the matrix

Question 44

like in hyaline catilage what is the matrix produced by?

Answer 44

chondrocytes encapsulated in lacunae

Question 45

what do the collagen fibers give fibrocartilage?

Answer 45

great tensile strength

Question 46

what type of areas is fibrocartilage found?

Answer 46

where firm support and tensile strength are required

Question 47

body locations of fibrocartilage

Answer 47

1) cartilage pads in knee 2) intervertebral discs 3) public symphysis

Question 48

what is the hardest connective tissue?

Answer 48

bone

Question 49

what does microscopic examination of dense bone reveal?

Answer 49

that is consists of a collection of ostons or haversian systems

Question 50

what does the osteon have in dense bone?

Answer 50

a lot of matrix and very few spaces

Question 51

what is at the center of each osteon in dense bone?

Answer 51

the central canal (haversian canal)

Question 52

where does the central canal run in dense bone and what does it contain?

Answer 52

the length of the bone and contains capillaries

Question 53

what are the smaller spaces called in osteons of dense bone?

Answer 53

lacunae

Question 54

what does the lacunae of dense bone contain?

Answer 54

the cells of the bone

Question 55

what are the cells trapped in the lacunae of dense bone called?

Answer 55

osteocytes

Question 56

body locations where dense bone is found

Answer 56

comprises the bones of the skeleton

Question 57

what type of matrix does blood have?

Answer 57

a fluid one

Question 58

what do the formed elements of blood include?

Answer 58

1) erythrocytes (red blood cells) 2) leukocytes (white blood cells) 3) platelets

Question 59

body locations of blood

Answer 59

1) within blood vessels | 2) within chambers of the heart

Question 60

what is the first part of the neuron in nervous tissue (consists of 3 parts)

Answer 60

cell body or perikaryon

Question 61

what does the perikaryon in nervous tissue contain?

Answer 61

all of the normal organelles including the nucleus

Question 62

what radiates out from the preikaryon in nervous tissue?

Answer 62

various cellular extensions referred to as the processes

Question 63

what are the two basic types of processes in nervous tissue?

Answer 63

1) axons | 2) dendrites

Question 64

body location of nervous tissue

Answer 64

nervous system

Question 65

what are the two principal parts of the skin?

Answer 65

1) epidermis | 2) dermis

Question 66

what is the epidermis comprised of?

Answer 66

it's a thinner layer made up of stratified sqaumous epithelium

Question 67

what is the dermis?

Answer 67

a thicker inner layer of the skin comprised of connective tissue

Question 68

what is the subcutaneous layer beneath the dermis?

Answer 68

hypodermis

Question 69

what does the hypodermis consist of?

Answer 69

areolar and adipose connective tissue

Question 70

in addition to the structural layers of the skin what does it contain?

Answer 70

numerous accersory structures

Question 71

what do the numerous accessory structures of the skin include? (3)

Answer 71

1) nails 2) sweat glands 3) sebaceous (oil) glands

Question 72

what else does the skin contain?

Answer 72

receptors

Question 73

what do the receptors of the skin sense? (4)

Answer 73

1) hot 2) cold 3) light touch 4) pressure

Question 74

order of layers of the epidermis from top to bottom

Answer 74

1) stratum corneum 2) stratum lucidum 3) stratum granulosum 4) stratum spinosum 5) stratum basale

Question 75

what is the layer of the dermis part of the skin called?

Answer 75

dermal papillae

Question 76

what body locations is hyaline cartilage located? (4)

Answer 76

1) at the ends of bone 2) larynx 3) trachea 4) fetal skeleton