Chapter4

Question 1

4 basic tissue types

Answer 1

1. nervous: spinal cord, brain, nerves
2. muscle: skeletal, cardiac, smooth
3. epithelial: lining of digestive tract organs, skin surface
4. connective: bones, tendons, fat tissue

Question 2

consists of one single cell layer, typically found where absorption, secretion,a nd filtration ocur and a thin epithelial barrier is desirable

Answer 2

simple epithelia

Question 3

composed of 2 or more cell layers stacked on top of each other, common in high abrasion areas where protection is important, such as skin surface and lining of mouth

Answer 3

stratified epithelia

Question 4

• secrete their products onto body surfaces or into body cavities
• includes mucous, sweat, oil and salivary glands, liver, pancreas, etc.

Answer 4

exocrine glands

Question 5

most abundant tissue and widely distributed with 4 main classes

1. proper
2. cartilage
3. bone
4. blood

Answer 5

connective tissue

Question 6

• these muscles form flesh of teh body and contract and pull on bones or skin, causing body movements
• long,cylindrical cells that contain many peripherally located nuclei with striated appearance reflecting myofilaments

Answer 6

skeletal muscle

Question 7

• striated, uninucleate with the nucleus situated centrally
• branching cells that fit together tights at intercalated discs

Answer 7

cardiac muscle

Question 8

• no visible striations in this muscle type
• spindle shaped and contian one centraly located nucleus
• found in walls of hollow organs

Answer 8

smooth muscle

Question 9

contians 2 major cell types: neurons and supporting cells

Answer 9

nervous tissue

Question 10

respond to stimuli

Answer 10

via processes called dendtrites

Question 11

transmit electrical impulses over substantial distances within gthe body

Answer 11

axons

Question 12

tissues normally function efficiently thru youth and middle age IF..