Tissue Notes- Part 3

Question 1

muscle tissue characteristics

Answer 1

-cellular
-contractility
-high vascularity
-in permanent G0(growth arrest)- can’t make more

Question 2

contractility

Answer 2

ability to shorten itself(actin and myosin proteins)

Question 3

cardiac muscle tissue

Answer 3

-found only in the heart
-involuntary
-cells interlock with each other with intercalated discs

Question 4

smooth muscle tissue

Answer 4

-found in walls of internal organs and blood vessels involuntary
-lacks striations, tapered on ends
-very, very strong
-uterus can come out of permanent G0

Question 5

skeletal muscle tissue

Answer 5

-also called striated because of striped appearance
-attached to bone
-can be controlled by conscious effort(voluntary)
-cells(muscle fibers) are long and cylindrical and have many nuclei

Question 6

nervous tissue characteristics

Answer 6

-found in brain, spinal cord, and nerves
-acts as rapid messenger service for body
-2 types of nerve cells

Question 7

2 types of nerve cells

Answer 7

neurons & neuroglia

Question 8

neurons

Answer 8

nerve cells, conduct nervous impulses

Question 9

neuroglia

Answer 9

helper cells that support and nourish the neurons

Question 10

dendrite

Answer 10

receives messages

Question 11

perikaryon

Answer 11

cell body

Question 12

axon

Answer 12

carries message away from the cell body

Question 13

synapse

Answer 13

space the message must travel through

Question 14

synaptic vesicles

Answer 14

carry in a vacuole that gets released via exocytosis