Tissue Level of Organization

Question 1

A tissue is a group of _____ working together to perform a ________ ________.

Answer 1

cells, specific function

Question 2

What are the 4 main types of tissue?

Answer 2

Epithelial, connective, muscle & neural

Question 3

Epithelial tissue is a continuous _____ of closely bound cells.

Answer 3

sheet

Question 4

What are the 3 possible shapes of epithelial tissue?

Answer 4

squamous (long & thin), cuboidal (squares), columnar (tall & thin)

Question 5

What are the 3 possible arrangements of epithelial tissue?

Answer 5

simple (1 layer), stratified (multiple layers), pseudostratified (1 layer that looks like many)

Question 6

Where can you find simple squamous epithelial cells?

Answer 6

Alveoli, capillaries & serous membranes (very thin & permeable).

Question 7

Where can you find stratified squamous epithelial cells?

Answer 7

Skin, mouth, esophagus, etc. (areas often exposed to abrasion or trauma).

Question 8

Where can you find simple cuboidal epithelial cells?

Answer 8

Kidneys, thyroid.

Question 9

Where can you find stratified cuboidal epithelial cells?

Answer 9

Sweat glands.

Question 10

Where can you find simple columnar epithelial cells?

Answer 10

Digestive system (stomach & intestines), female reproductive system.

Question 11

Where can you find stratified columnar epithelial cells?

Answer 11

Salivary glands.

Question 12

Where can you find pseudostratified ciliated columnar epithelial cells?

Answer 12

Urethra, trachea, bronchi, male reproductive system.

Question 13

__________ epithelial cells can change shape.

Answer 13

Transitional.

Question 14

Where can you find transitional epithelial cells?

Answer 14

Bladder, uterus & other structures that often stretch/extend.

Question 15

The ______ side of epithelial tissue is exposed to an internal or external environment.

Answer 15

apical

Question 16

Epithelial tissue is rich in _______ ______ but has no _____ _______.

Answer 16

Sensory nerves (well innervated), blood vessels (avascular).

Question 17

How do epithelial tissue get their nutrients if they don’t have blood vessels?

Answer 17

Nutrients are diffused or absorbed from the apical or basilar surface.

Question 18

What are the 4 functions of epithelial tissue?

Answer 18

1. Protect underlying surfaces (stratified squamous).
2. Control permeability (simple squamous).
3. Provides sensation.
4. Produces secretions (glandular epithelia).

Question 19

Where can you generally find epithelial tissue?

Answer 19

Covers all exposed surfaces, internal passages, hollow organs, cavities & ducts.

Question 20

What are the 3 components of connective tissue?

Answer 20

Cells, extracellular fibres & ground substance.

Question 21

What are the 3 types of extracellular fibres in connective tissue?

Answer 21

Collagen, elastic fibres & reticular fibres.

Question 22

_____________ ______ and ______ _________ make up the matrix between cells.

Answer 22

Extracellular fibres, ground substance.

Question 23

What are the 4 functions of connective tissue?

Answer 23

1. Provide structure to the body.
2. Transport (blood).
3. Supports & protects organs (bone).
4. Interconnects other types of tissues.

Question 24

What are the 6 different types of connective tissue?

Answer 24

Loose, dense (connective tissue proper).
Blood, lymph (fluid connective tissue).
Cartilage, bone (supporting connective tissue).

Question 25

Where can you generally find connective tissue?

Answer 25

Everywhere in the body, between other tissue.

Question 26

What are the 3 types of muscle tissue?

Answer 26

Skeletal, cardiac & smooth.

Question 27

Is skeletal muscle tissue mono- or multi-nucleated?

Answer 27

Multinucleated.

Question 28

Skeletal muscles are usually under _________ control.

Answer 28

voluntary

Question 29

Is skeletal muscle tissue striated or non-striated?

Answer 29

Striated (due to actin & myosin).

Question 30

Are cardiac muscle tissues mono- or multi-nucleated?

Answer 30

Mononucleated.

Question 31

Is cardiac muscle tissue striated or non-striated?

Answer 31

Striated.

Question 32

Cardiac muscle cells are under ___________ control and the heart has its own _________.

Answer 32

involuntary, pacemaker

Question 33

Is smooth muscle tissue mono- or multi-nucleated?

Answer 33

Mononucleated.

Question 34

Is smooth muscle tissue striated or non-striated?

Answer 34

Non-striated.

Question 35

Smooth muscles are usually under ___________ control.

Answer 35

involuntary

Question 36

What are 3 functions of muscle tissue?

Answer 36

Movement, heat & posture.

Question 37

Where is skeletal muscle tissue found?

Answer 37

Anywhere there is movement.

Question 38

Where is cardiac muscle tissue found?

Answer 38

The heart.

Question 39

Where can smooth muscle tissue be found?

Answer 39

Around hollow organs (bladder, stomach, bowel) & passageways to the exterior (respiratory & digestive tracts).

Question 40

What is neural tissue made out of?

Answer 40

Neurons.

Question 41

What is the function of neural tissue?

Answer 41

Transmits electrical impulses between different regions of the body.

Question 42

Where can you find neural tissue?

Answer 42

Throughout the entire body.

Question 43

Membranes are made up of a layer of __________ tissue over a layer of __________ tissue.

Answer 43

epithelial, connective

Question 44

What are the 4 types of membranes in our bodies?

Answer 44

Mucous, serous, cutaneous & synovial membranes.

Question 45

Where can you find mucous membranes?

Answer 45

Respiratory & GI tract.

Question 46

What types of tissue are mucous membranes made of?

Answer 46

Simple columnar epithelial cell & loose connective tissue.

Question 47

Where can you find serous membranes?

Answer 47

Ventral body cavity (parietal) & organs (visceral).

Question 48

What types of tissue are serous membranes made out of?

Answer 48

Simple squamous epithelial cells & loose connective tissue.

Question 49

What is the main cutaneous membrane in the body?

Answer 49

Skin.

Question 50

What is cutaneous membrane made of?

Answer 50

Stratified squamous epithelial cells & dense connective tissue.

Question 51

Where can you find synovial membranes?

Answer 51

Lining of joint cavities.

Question 52

What are the 3 types of cartilage?

Answer 52

Hyaline, elastic & fibrous.