Tissue essay

Question 1

Types of tissues

Answer 1

1. Epithelial
2. Muscluar
3. Connective
4. Nervous

Question 2

Function of epithelial tissue

Answer 2

Covers the outside of the body and lines the organs and cavities within the body

Question 3

Structure of epithelial tissue

Answer 3

Epithelial cells may be cuboidal, columnar, or squamous. Arrangement may be simple, stratified, or pseudostratified

Question 4

Function of connective tissue

Answer 4

Binds and supports other tissues

Question 5

Structure of connective tissue

Answer 5

Contains sparsely packed cella scattered throughout the extracellular matrix. The matrix contains fibers in a liquid, jellylike, or solid foundation

Question 6

Types of connective tissue fibers

Answer 6

1. Collagenous fibers
2. Reticular fibers
3. Elastic fibers

Question 7

Collagenous fiber function

Answer 7

Provide strength and flexibility

Question 8

Reticular fiber function

Answer 8

Join connective tissue to adjacent tissues

Question 9

Elastic fiber function

Answer 9

Stretch and snap back to their original length

Question 10

Cells of connective tissue

Answer 10

• Fibroblasts that secrete protein of extracellular fibers

- Macrophages that are involved in the immune system

Question 11

Types of connective tissue

Answer 11

1. Loose connective tissue
2. Fibrous connective tissue
3. Bone
4. Adipose tissue
5. Blood
6. Cartilage

Question 12

Loose connective tissue function

Answer 12

Binds epithelia to underlying tissues and hold organs in place

Question 13

Loose connective tissue structure

Answer 13

Most widespread in the body. Has loosely arranged fibers

Question 14

Fibrous connective tissue function

Answer 14

Found in tendons which attach muscles to bones, and ligaments which connect bones at joints

Question 15

Fibrous connective tissue structure

Answer 15

Dense, a lot of collagenous fibers, resembles muscle

Question 16

Bone function

Answer 16

Mineralized and forms the skeleton

Question 17

Bone structure

Answer 17

Highly dense, compact, not bendable, made of osteocytes, endoskeleton, specific arrangement

Question 18

Adipose tissue function

Answer 18

Stores fat for insulation and fuel (energy)

Question 19

Adipose tissue structure

Answer 19

Similar to loose connective tissue but the cellular components are different (lipids)

Question 20

Blood function

Answer 20

Connects parts of body. Passes oxygen and nutrients from one part to another

Question 21

Blood structure

Answer 21

Composed of blood cells and cell fragments in the blood plasma. Liquid ECM, not a lot of fibers. Contains salts, WBC, RBC, platelets, and plasma

Question 22

Cartilage function

Answer 22

A strong and flexible support material

Question 23

Cartilage structure

Answer 23

Composed of chondrocytes. Semisolid jelly liquid ECM. Rubbery proteins and carbs

Question 24

Muscular tissue function

Answer 24

Responsible for nearly all types of body movement

Question 25

Muscular tissue structure

Answer 25

Consists of filaments of the proteins actin and myosin, enable muscles to contract (thick filaments slide over thin filaments and pull it together)

Question 26

Types of muscular tissue

Answer 26

1. Skeletal muscle 2. Smooth muscle 3. Cardiac muscle

Question 27

Skeletal muscle function

Answer 27

Responsible for voluntary movement

Question 28

Skeletal muscle structure

Answer 28

Bundles of cylindrical cells (fibers), multi-nucleated as they fuse together, striated, sarcromeres are banding in between fibers. Striated

Question 29

Smooth muscle function

Answer 29

Responsible for involuntary body acitivites (EX: lines urinary, digestive, secretion organs, arteries )

Question 30

Smooth muscle structure

Answer 30

Unstriated. Has spindle shaped cells. Controlled by the ANS

Question 31

Cardiac muscle function

Answer 31

Responsible for the contraction of the heart

Question 32

Cardiac muscle structure

Answer 32

Branched, striated, large nuclei, single nucleated cells, intercalated discs connect cells, controled by the ANS

Question 33

Nervous tissue function

Answer 33

Functions in the receipt, processing, and transmission of information

Question 34

Nervous tissue structure

Answer 34

Contains neurons that transmit nerve impulses and glial cells (support cells)