stuff to know lol

Question 1

What is pharmacokinetics?

Answer 1

How an organism reacts to a drug/processes the drug, absorption, distribution, metabolism and secretion.

Question 2

What is pharmacodynamics?

Answer 2

How the drug affects the organism.

Question 3

What ion has a high concentration inside the cell?

Answer 3

Potassium.

Question 4

Why is the resting membrane potential negative?

Answer 4

More sodium ions outside cell than potassium ions inside the cell.

Question 5

Where are Purkinje neurones found?

Answer 5

The cerebellum.

Question 6

Cilliary contract…

Answer 6

zonular relax and eye gets more round

Question 7

Rods?

Answer 7

Light and dark

Question 8

Cones?

Answer 8

Colours

Question 9

What is missing in smooth muscle?

Answer 9

Troponin.

Question 10

Cross bridge activation?

Answer 10

Phosphorylation of myosin to allow it to undergo cross bridge cycling. Ca2+ binds to calmodulin that binds to myosin light chain kinase and activates the enzyme. atp phosphorylayes the myosin light chains in the globular head - allows myosin to bind to actin

Question 11

Varicosity?

Answer 11

Swelling at the end of a branch from the axon of a postganglionic neurone.

Question 12

Alpha adrenergic receptors?

Answer 12

Mediate constriction in most vascular smooth muscle.

Question 13

Beta adrenergic receptors?

Answer 13

Dilation of vascular smooth muscle and lung airway

Question 14

Muscarinic receptors in bronchial smooth muscle?

Answer 14

Bronchoconstriction.

Question 15

Pyloric sphincter?

Answer 15

Ring of smooth muscle and connective tissue between the antrum and duodenum

Question 16

what are bile salts important for

Answer 16

emulsification of fats

Question 17

sphincter of oddi

Answer 17

smooth muscle where common bile enters the small intestine.