Tissues of Musculoskeletal System

Question 1

4 types of tissues

Answer 1

epithelium

muscle tissue

connective tissue

nervous tissue

Question 2

epithelium

Answer 2

anything that lines a surface or cavity

forms the outer layer of the skin

4 layers

Question 3

4 layers of epithelium

Answer 3

simple squamous

simple cubodial

simple columnar

pseudostratified

Question 4

muscle tissue function

Answer 4

give form to body and provide heat

Question 5

muscle cells

Answer 5

specialized contractile cells organized into tissues

move body parts or alter shape of internal organs

Question 6

types of muscle

Answer 6

skeletal muscle

cardiac muscle

smooth muscle

Question 7

characteristics of skeletal muscle

Answer 7

striated

long

multinucleated

voluntary

Question 8

what is the structural muscle unit of skeletal muscle

Answer 8

muscle fibers

Question 9

what are the 3 parts of a muscle fiber

Answer 9

endomysium –> connective tissue covering individual muscle fibers, inner most layer

perimysium–> connective tissue covering a group of fibers (fascicles), middle layer

epimysium –> connective tissue covering the entire muscle (deep fascia), outer layer

Question 10

functions of skeletal muscle

Answer 10

agonist

fixator

synergist

antagonist

Question 11

what is an agonist

Answer 11

primary muscle mover, main muscle responsible for a movement

Question 12

what is a fixator

Answer 12

steady

proximal parts of the limb during movement

occurs in distal parts

Question 13

what is a synergist

Answer 13

complements action of prime mover

Question 14

what is a antagonist

Answer 14

opposes action of prime mover

Question 15

what are the shapes of skeletal muscle

Answer 15

pennate shape

fusiform shape

parallel shape

convergent shape

circular shape

digastric shape

Question 16

pennate shape

Answer 16

feather shaped

ex: rectus femoris

can be bi-pennate

Question 17

fusiform shape

Answer 17

wider towards middle

narrow @ the ends

ex: biceps brachii

Question 18

parallel shape

Answer 18

all muscle fibers are parallel to each other

Question 19

convergent shape

Answer 19

fan shaped

wider @ one end and fibers converge at the other

ex: pec major

Question 20

circular shape

Answer 20

used to open and close

ex: eyes and mouth

Question 21

digastric shape

Answer 21

2 bellies connected by a tendon

Question 22

what are the characteristics of cardiac muscle

Answer 22

branching

interrelated discs

fused at the plasma membrane

found in the heart (forms most walls of the heart)

myocardium

involuntary

Question 23

what are the characteristics of smooth muscle

Answer 23

long

single nucleated

spindle shaped

found in hollow organs (wall of digestive tract)

found in the skin (makes hair stand up)

involuntary

Question 24

connective tissue

Answer 24

has 4 parts

-fibrous connective tissue

-connective cartilage

-bone

-blood cells

Question 25

fibrous connective tissue

Answer 25

2 types (collagen and elastic) consists of loose fibrous connective tissue and dense fibrous connective tissue

Question 26

loose fibrous connective tissue

Answer 26

has more cells and fewer fibers (adipose)

Question 27

dense fibrous connective tissue

Answer 27

more closely packed fibers can be regular or irregular -regular --> tendons or ligaments -irregular --> fascia

Question 28

connective cartilage

Answer 28

has 3 parts -hyaline (articular cartilage) -fibrocartilage -elastic cartilage

Question 29

hyaline cartilage

Answer 29

smooth, glossy, bluish

Question 30

fibrocartilage

Answer 30

white, contains many collagen fibers

Question 31

elastic cartilage

Answer 31

yellowish, found in external ear

Question 32

bone

Answer 32

type of connective tissue main supporting tissue of the body

Question 33

what does bone provide

Answer 33

protection, support, mechanical basis of movement, storage for salts, continuous supply of blood cells