Chapter 5 lab Flashcards Preview

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Flashcards in Chapter 5 lab Deck (69):
1

fundamental cell type of bone connective tissue is

osteoblast/osteocyte

2

lacunae

small space where osteocytes reside

3

bone tissue matrix is arranged in two ways

osteons (cylindrical structures) in compact bone, and trabeculae (flat or needle like structure) in spongy bone

4

what do collagenous fibers do to the matrix

give bone bone tissue it tensile strength

5

what does the mineral salts give bone tissue

the ability to hold its shape when squeezed

6

bone marrow is composed of

reticular connective tissue, immature blood cells, and adipocytes

7

the outter surface of bone is formed by a sheath of what

dense irregular connective tissue called the periosteum

8

the periosteum is made from

collagenous fibers that go in all directions

9

what is the fundamental cell type of cartilage connective tissue?

chondrocyte/chondroblast

10

where are chondrocytes found?

in the lacunae

11

what forms the outer surface of most cartilaginous structures?

dense irregular connective tissue, the perichondrium (vascular)

12

hyaline cartilage connective tissue

has collagenous fibers and provides firm support
-found in articular cartilages and in the larynx

13

fibrocartilage connective tissue

collagenous fibers that are thicker than hyaline cartilage,
-provides strong support that can withstand heavy pressure ex: intervertebral discs and menisci of the knee

14

elastic cartilage connective tissue

elastic fibers and collagenous fibers,
-gives structure a firm bus elastic support
-ex: ears and epiglottis (part of larynx

15

ligaments are composed of

dens regular connective tissue

16

fibroblast are the fundamental cell type in what two tissues

dens regular and dense irregular connective tissue

17

difference between dense regular and dense irregular collagenous fibers?

dense regular tissue fibers are in parallel bundles
-dense irregular fibers are in all directions

18

articulation

joint -binds bones together

19

types of joints

synovial, fibrous, cartilaginous

20

two main factors used to classify a join by structure are the....

type of connective tissue binding the bones and whether or not there is a joint cavity

21

fibrous joints

dense connective tissue binds the bones; no joint cavity

22

cartilaginous joints

cartilage connective tissue bines the bones; no joint cavity

23

synovial joints

an articular capsule, ligaments, and muscle bind the bones; joint cavity present

24

fibrous layer of the articular capsule is made of

dense irregular connective tissue

25

the deep layer of the capsule, the synovial membrane is composed of ______ and produces synovial fluid

loose connective tissue

26

dense regular or dense irregular connective tissue is best at resisting tension exerted in a single direction

dense regular connective tissue

27

what type of bone has trabeculae?

spongy

28

what fiber type forms the network of bone marrow?

reticular

29

synarthrosis

immovable

30

arthr

joint

31

amphiarthrosis

slightly movable

32

diarthrosis

freely movable

33

nonaxial

a bone moves in no axis
ex: patellarfemoral joint

34

uniaxial

a bone moves in one axis
ex: elbow joint

35

biaxial

a bone moves in two axis
ex: hand and fingers

36

multiaxial

a bone moves in three axis
ex: shoulder joint

37

true or false: all synovial joints are diarthroses

true

38

how is friction reduced In diarthrotic joints?

1. articular surfaces are composed of articular cartilage so when cartilage rubs against cartilage friction is reduced because cartilage is smoother than bone
2. synovial fluid reduces friction

39

bursa

flat fluid filled sac composed of dense irrecgular connective tissue that is lined by synovial membrane

40

a diarthrotic joint is classified into one of four subclasses by determining...

the number around which movement occurs

41

sarcolemma

plasma membrane of a skeletal muscle cell

42

epimysium

outermost sheath forms the external surface of skeletal muscle

43

fasicle

group or bundle of muscle cells

44

perimysium

surrounds each fascicle

45

endomysium

surrounds each individual skeletal muscle cell

46

tendon

cord like structure that is either round or flat

47

aponeurosis

sheet like structure

48

origin

less movable body part

49

insertion

more movable body part

50

the perimysium surrounds a ___

fascicle

51

muscle spindles

located in perimysium composed of skeletal muscle cells enclosed in a connected tissue capsule
-detects muscle stretch, the length of a muscle and the rate at which the length changes

52

tendon organs

found in a muscles tendon or aponeurosis of insertion, are encapsulated sensory receptors through which collagenous fibers of the tendon pass
- detect the amount of tension in a tendon or aponeurosis

53

condyl

knob

54

cruci

cross

55

fasci

bundle

56

icul

small

57

lemma

sheath

58

medull

marrow

59

menisc

crescent

60

myo

muscle

61

mys

muscle

62

sarco

flesh

63

endosteium

line and covers internal bone surfaces

64

periosteum

composes most, but not entire outer surface of bone

65

the articular capsule is composed of

dense irregular connective tissue and loose connective tissue

66

articular cartilage is composed of

hyaline cartilage connective tissue

67

the periosteum is composed of

dense irregular connective tissue

68

the epiphyseal plate iis composed of

hyaline cartilage connective tissue

69

ligament

dense regular connective tissue

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