Exam 3

Question 1

Tissue

Answer 1

Cells similar in structure; perform common function

Question 2

How do tissues maintain homeostasis?

Answer 2

Each type performs a specific function

Question 3

Histology

Answer 3

Study of tissues

Question 4

What does Epithelial tissue do?

Answer 4

Covers

Question 5

What does Connective tissue do?

Answer 5

Supports

Question 6

What does Muscle tissue do?

Answer 6

Produces movement

Question 7

What does nerve tissue do?

Answer 7

Communicates

Question 8

Parts of Nervous Tissue

Answer 8

1) Brain 2) Spinal cord 3) Nerves 4) Internal communication

Question 9

Parts of Muscle tissue

Answer 9

1) Skeletal (muscle attach at bone) 2) Cardiac (heart muscle) 3) Smooth (muscle of hollow organ walls) 4) Contractions cause movement

Question 10

Parts of Epithelial tissue

Answer 10

1) forms boundaries between environments 2) protects 3) secretes 4) absorbs 5) filters 6) DIGESTIVE TRACT ORGANS/ OTHER HOLLOW ORGANS 7) SKIN SURFACE (EPIDERMIS)

Question 11

Parts of connective tissue

Answer 11

1) Supports 2) protects 3) binds other tissues 4) BONES 5) TENDONS 6) FAT/SOFT PADDING TISSUE

Question 12

Microscopy: A microscope slide is what?

Answer 12

Preserved, cut, and stained

Question 13

What does it mean to be preserved?

Answer 13

Fixed

Question 14

What does it mean to be cut?

Answer 14

sliced thin enough to transmit light/electrons

Question 15

What does it mean to be stained?

Answer 15

Enhances contrast

Question 16

What is an Epithelium?

Answer 16

1) Forms boundaries 2) Two main types (by location)

Question 17

What are the two main types of epithelium?

Answer 17

1) Cover; line epithelia (external and internal surfaces) 2) Glandular epithelia (secretory tissue in glands)

Question 18

What is an epithelia

Answer 18

thin tissue layer

Question 19

What are the functions of Epithelial tissue?

Answer 19

1) Protect 2) Absorb 3) Filter 4) Excrete 5) Secrete 6) Sensory reception

Question 20

What are five characteristics of Epithelial tissues?

Answer 20

1) polarity 2) Specialized contact 3) Support connective tissues 4) Avascular; innervated 5) Regenerate

Question 21

What are the types of polarity in Epithelial tissues?

Answer 21

1) Apical surface (upper free- exposed to exterior/cavity) 2) Basal surface (lower, attached)

Question 22

Describe the Apical Surface of Epithelial Tissues.

Answer 22

1) smooth, slick 2) microvilli 3) cilia

Question 23

What does microvilli do in Apical surfaces of Epithelial tissue?

Answer 23

1) brushes the border of the INTESTINAL lining 2) increases surface area

Question 24

Where do you find cilia in Apical surfaces of epithelial tissues?

Answer 24

lining of trachea

Question 25

Describe the basal surface of epithelial tissue

Answer 25

1) noncellular, GLYCOPROTEIN and COLLAGEN FIBERS adjacent to basal surface 2) Adhesive sheet 3) Selective filter 4) Scaffolding for cell migration in WOUND REPAIR

Question 26

Describe Specialized contacts in Epithelial tissue

Answer 26

1) covers, lines epithelial tissue; fit closely together (form continuous sheets) 2) Specialized contacts bind adjacent cells (lateral contacts- TIGHT JUNCTIONS; DESMOSOMES)

Question 27

Describe connective tissue support in Epithelial tissue

Answer 27

1) Supported by connective tissue 2) RETICULAR LAMINA 3) BASEMENT MEMBRANE

Question 28

Desribe the reticular lamina

Answer 28

1) Deep to basal lamina 2) Network of collagen fibers

Question 29

Describe the basement membrane

Answer 29

1) Basal lamina + reticular lamina 2) Reinforces eipithelial sheet 3) Resists stretching and tearing 4) Defines epithelial boundary