Histology

Question 1

what is the dark band in muscle cells?

Answer 1

myosin

Question 2

what is the light band in muscle cells?

Answer 2

• actin

Question 3

relaxed smooth muscle nucleus will look like

Answer 3

• a cigar

Question 4

contracted smooth muscle nucleus will look like

Answer 4

• a corkscrew shape

Question 5

top layer

middle layer

bottom layer

Answer 5

epicardium

myocardium

endocardium

Question 6

endocardium is composed of what cells?

Answer 6

• simple squamous layer of cells

Question 7

what is between the two arrows?

Answer 7

intercalated disc

Question 8

lots of adipose cells will tell you that you are in which layer?

Answer 8

the epicardium

Question 9

shape of veins versus arteries

Answer 9

• arteries are more round
• veins have irregular shape

Question 10

what is at the arrow?

Answer 10

• purkinje fiber

Question 11

left?

middle?

right?

Answer 11

Question 12

A band composed of

Answer 12

• myosin

Question 13

I band composed of

Answer 13

• actin

Question 14

what are some features that can help you discern cardiac muscle from skeletal muscle?

Answer 14

• lots of mitochondria, lipid droplets, and glycogen granules

Question 15

what kind of muscle is this?

is it contracted or relaxed?

Answer 15

• smooth
• relaxed

Question 16

Answer 16

Question 17

tunica intima composed of

Answer 17

• endothelium
• internal elastic lamina

Question 18

tunica media composed of

Answer 18

• dark smooth msucle
• white elastic laminae

Question 19

Answer 19

Question 20

shape of

artery

vein

Answer 20

rounder

flatter

Question 21

wall of

artery

vein

Answer 21

thicker

thinner

Question 22

tunica media of

artery

vein

Answer 22

more smooth muscle

less smooth muscle

Question 23

lumen of

artery

vein

Answer 23

smaller

wider

Question 24

size of venule versus arteriole

Answer 24

• venule bigger than arteriole

Question 25

location of arteries and veins versus venules and arterioles

Answer 25

- arteries and veins are closure to the outside of a structure venules and arterioles are closer to the inside

Question 26

layers of smooth muscle of arteriole

Answer 26

- 1-2

Question 27

layers of smooth muscle of venule

Answer 27

- not usually prominent

Question 28

Answer 28

Question 29

Answer 29

Question 30

Answer 30

Question 31

Answer 31

Question 32

Answer 32

Question 33

Answer 33

Question 34

Answer 34

Question 35

Answer 35

Question 36

Answer 36

Question 37

Answer 37

Question 38

Answer 38

Question 39

Answer 39

Question 40

Answer 40

Question 41

Answer 41

Question 42

Answer 42

Question 43

Answer 43

Question 44

Answer 44