Pec 478 Ch 15

Front 1

_____ and thus blood volume, can be reduced by sweating during prolonged activity.

Back 1

Plasma Volume

Front 2

List the sequence of the anti-diuretic hormone

Back 2

Physical activity -> increase in sweat -> loss of plasma volume -> hemoconcentration (increase in blood osmolarity) -> stimulates hypothalamus -> stimulates posterior pituitary gland, which secretes ADH -> causes kidneys to reabsorb water from the renal tubules and collecting ducts, which increases plasma volume and decreases osmolarity

Front 3

What drugs are diuretics?

Back 3

Alcohol and caffeine

Front 4

What 2 methods are involved in conserving plasma volume?

Back 4

ADH and aldosterone

Front 5

The _____ of the kidneys will produce aldosterone to _____ from the renal tubules.

Back 5

Renal Cortex
increase water and sodium reabsorption

Front 6

To trigger the release of aldosterone, we must follow this pathway of events

Back 6

Physical activity -> sweating and increased BP -> sweating results in a loss of plasma volume, so BP decreases -> reduced renal blood flow causes kidneys to release renin -> renin forms angiotension I which converts to angiotension II -> angiotension II contracts arterioles to increase BP and stimulate the release of aldosterone from the adrenal cortex -> aldosterone promotes water/sodium reabsorption from the renal tubules -> plasma volume increases and helps maintain normal blood pressure.

Front 7

ADH in released because of an increase in _____.
Aldosterone is released because of a decrease in _____.
The key to both of these events is the sweat loss from exercise and the resulting drop in plasma volume that leads to a blood _____ and a drop in blood pressure. Both of these are _____ feedback systems

Back 7

Blood osmolarity
Blood pressure
Hemoconcentration
Negative

Front 8

In the pancreas, _____ cells secrete _____ and ____ cells secrete _____.

Back 8

Alpha Glucagon
Beta Insuline

Front 9

This hormone is secreted from pancreatic cells when plasma glucose levels are elevated, such as after a meal

Back 9

Insulin

Front 10

This hormone's job is to transport glucose into the cells and promote the making of glycogen

Back 10

Insulin

Front 11

Stored glucose in skeletal muscle and liver tissue

Back 11

Glycogen

Front 12

Secreted to get the sugar out of the blood and into the tissue

Back 12

Insulin

Front 13

This hormone is secreted from pancreatic cells when plasma glucose levels drop below normal levels, such as during exercise

Back 13

Glucagon

Front 14

This hormone will promote the breakdown of glycogen into glucose

Back 14

Glucagon

Front 15

The breakdown of glycogen into glucose

Back 15

Gylcogenolysis

Front 16

Puts more sugar in the blood with the breakdown of glycogen

Back 16

Glucagon

Front 17

Secreted to get sugar out of storage and into the blood since we'll need more glucose during exercise.

Back 17

Glucagon

Front 18

The _____ stored as triglycerides in adipose tissue and in muscle cells are ideal fuels for endurance exercise. If our body can convert the _____ into _____, our use of fat as a fuel is greatly enhanced. When the enzyme _____ is activated, this conversion to FFA can occur.

Back 18

Free fatty acids
Triglycerides
FFA
Lipase

Front 19

The 4 major hormones that will promote lipase activity

Back 19

Cortisol, Growth Hormone, Epinephrine, and Norepinephrine