anatomy of cells and homeostasis

Question 1

4 basic type of tissues

Answer 1

epithelial, connective, muscle, nervous

Question 2

definition of epithelial tissues

Answer 2

one or more layers of cells, closely adhered together, that form the barrier between your body and the environment

Question 3

functions of epithelial tissues

Answer 3

1. protection
2. barrier
3. regulation of movement of materials

Question 4

where can simple squamous epithelium tissue be found

Answer 4

lining of blood vessels, alveoli of lungs, buccal cavity

Question 5

where can simple cuboidal epithelium tissue be found

Answer 5

kidney tubules, surfaces of ovaries

Question 6

where can simple columnar epithelium tissue be found

Answer 6

bronchioles of lung, stomach, intestine

Question 7

dsecribe connective tissues

Answer 7

loosely organized array of cells surrounded by ECM

Question 7

function of stratified tissue

Answer 7

1. protect from dehydration, abrasion, bacterial attack
2. regulates internal temperature
3. reservoir for blood

Question 8

what is the extracellular matrix made up of

Answer 8

made up of proteins and polysaccharide
- eg collagen (inelastic) - major structural protein found in tendons, ligaments and skin
- eg elastic (elastic) - protein that allows skin and vocal chords to stretch & recoil

Question 9

function of connective tissue proper

Answer 9

binds other tissues together; offers mechanical/metabolic support

Question 10

2 examples of loose connective tissue proper

Answer 10

adipose, reticular

Question 11

2 examples of dense connective tissue proper

Answer 11

tendons, ligaments

Question 12

3 examples of specialized connective tissue

Answer 12

bone, cartilage, blood

Question 13

function of cartilage

Answer 13

solid but pliable, joints & growing bones

Question 14

function of bone

Answer 14

protects & supports organs; interacts with muscles for movement; RBC production; mineral storage

Question 15

function of blood

Answer 15

transports oxygen, enzymes, hormones, cells

Question 16

describe muscle tissue

Answer 16

• contain cells that contract, then passively lengthen and return to their resting state
• contraction generates force for movement of whole body & individual parts

Question 17

3 types of muscle tissue

Answer 17

smooth, skeletal, cardiac

Question 18

characteristics of smooth muscle tissue

Answer 18

• spindle-shapes, one nucleus
• surrounds hollow organs
• involuntary control

Question 19

characteristics of skeletal muscle tissue

Answer 19

• long, striated, multinucleated
• attached to bones by tendons
• voluntary control

Question 20

characteristics of cardiac muscle tissue

Answer 20

• short, blunt-ended cells separated by intercalated discs
• contract as a unit to pump blood
• involuntary control

Question 21

function of nervous tissue

Answer 21

• consists primarily of neurons
• coordinate all bodily functions
  -breathing, sweating, appetite, memory, emotions, consciousness