Chapter 8

Question 1

What is a tissue?

Answer 1

-a group of cells with the same job

Question 2

What is histology?

Answer 2

-the biology of tissues

Question 3

What are the principle types pf tissue?

Answer 3

• Epithelial
• Connective
• Muscle
• Nervous

Question 4

Describe epithelial tissue.

Answer 4

-covers body surfaces, lines hollow ducts and forms glands

Question 5

Describe connective tissue.

Answer 5

• protects, supports, and binds organs

- stores energy as fat, provides immunity

Question 6

Describe muscle tissue.

Answer 6

-generates movement and heat

Question 7

Describe nervous tissue.

Answer 7

• detects changes in the body and responds by generating nerve impulses
• allows body to communicate

Question 8

What are the three primary germ layers?

Answer 8

• Endoderm
• Ectoderm
• Mesoderm

Question 9

What tissue or organ derives from the endoderm?

Answer 9

• lining of lungs, gi tract, hepatic and pancreatic ducts

- kidney ducts and bladder

Question 10

What tissue or organ derives from the ectoderm?

Answer 10

• epidermis of skin
• tooth enamel
• cornea of eye
• outer ear
• nasal cavitiy
• skeletal muscles in head
• brain and spinal cord
• sensory neurons

Question 11

What tissue or organ derives from the mesoderm?

Answer 11

• dermis of skin
• circulatory system
• glands
• kidneys
• gonads
• muscle
• bones (except facia)

Question 12

What is ECM?

Answer 12

-the fluid environment that fills the space between the cells of the body

Question 13

What three fibers make up the ECM?

Answer 13

• collagen
• elastic fibers
• reticular fibers

Question 14

What is the purpose of the ECM?

Answer 14

-supports and binds cells, stores water, allows exchange between blood and cells

Question 15

What are body membranes?

Answer 15

-sheetlike structure that covers and protects the body surface, lines body cavities, and covers the inner surfaces of hollow organs

Question 16

What are the two types of body membranes?

Answer 16

• epithelial membranes

- connective tissue membranes

Question 17

What are the three types of epithelial membranes?

Answer 17

• Cutaneous
• Mucous
• Serous

Question 18

Describe the cutaneous membrane and where it’s found.

Answer 18

• covers body surfaces that are exposed to the external environment
• skin

Question 19

Describe the mucous membrane and where it’s found.

Answer 19

• lines the body surfaces that are open to the exterior

- respiratory tract, urinary tract, digestive tract

Question 20

Describe the serous membrane and where it’s found.

Answer 20

• lines cavities that are not open to the external environment
• covers the organs inside the cavitites
• secretes a thin, watery fluid that lubricates organs

Question 21

Where do you find connective tissue membranes and what makes then distinct from epithelial membranes?

Answer 21

• Synovial membranes
• DO NOT have a basement membrane
• secretes synovial fluid
• lines the spaces between bones and joints