BL random

Question 1

average life of a erythrocyte

Answer 1

120 days

Question 2

one place where lymphatic vessels are not found

Answer 2

CNS

Question 3

what are the layers of the skin and which does the ink of a tattoo reside in

Answer 3

epidermis (divided into 4 stratum layers)
dermis
hypodermis

Question 4

the mouth is lined by what type of epithelial cell

Answer 4

stratified squamous epithelium

Question 5

fluid enters the lymph system via?

Answer 5

blind ended capillaries

Question 6

describe the flow of lymph from cells to blood

Answer 6

cells
tissue fluid
lymphatic capillary
flow into>lymphatic vessel
drain into> lymphatic node
lymphatic trunk
lymphatic duct
vein

Question 7

what are the two lymphatic ducts

Answer 7

Right Lymphatic Duct (if the lymph originating from the right upper quadrant of the body)

Thoracic Duct (if the lymph originated from outside of the upper right quadrant of the body) left side

Question 8

where are axillary lymph nodes found

Answer 8

armpit

Question 9

what is a secondary lymphodema

Answer 9

swelling arising as a result of accidental surgical damage to the lymphatic system
interrupts the lymphatic drainage

Question 10

role of hepatic portal system

Answer 10

supplies deoxy blood full of toxins and nutrients (from the stomach/ intestines) to the liver

Question 11

which tissues arise from mesoderm

Answer 11

supporting tissues like muscle tissue, cartilage, bone and the vascular system (including the heart and blood vessels).

Question 12

which tissues arise from ectoderm

Answer 12

forms organs and structures that maintain contact with the outside world. This includes nervous tissue and the epidermis of the skin.

Question 13

which tissues arise from endoderm

Answer 13

internal structures like epithelial lining of GI tract, respiratory tract and the parenchyma of glands.

Question 14

how does smooth muscle contraction occur

Answer 14

the head of the myosin light chain must be phosphorylated. This phosphorylation is done by myosin light chain (MLC) kinase. This MLC kinase is activated by a calmodulin when it is bound by calcium

Question 15

what happens when striated muscle is over stretched?

Answer 15

the A and I bands of the sarcomere can no longer reengage (i.e. the myosin and actin can no longer interact).
N
in response new sarcomeres are added to existing sarcomeres and new myofibrils produced
> hypertrophy of muscles

Question 16

how does serous and mucus acini appear on H&E stain

Answer 16

serous= dark
mucus= pale

Question 17

erythropoietin produced when and from where?

Answer 17

hypoxia

kidney