Endocrine System/Homeostasis

a body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.

• endocrine system 
• nervous system
• nerve
• neuron

Failure to maintain homeostasis could result in:

• lack of internal balance
• eventual death
• difficulty carrying on metabolism 
• all three

Tags

NGSS.HS-LS1-3

Negative Feedback Loops:

• amplify processes
• prevent small changes from getting larger
• are initiated during childbirth
• are found only in plants

Tags

NGSS.HS-LS1-3

When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 

• Positive Feedback Response
• Negative Feedback Loop 

Tags

NGSS.HS-LS1-3

What does insulin do for your body?

• it helps to transport sugar from your blood to other body cells
• it acts as a receptor and tells the body when it is full
• it is a hormone released to induce sleep

Tags

NGSS.HS-LS1-3

Hormone that causes blood sugar to be raised

• Glucagon
• Glycogen
• Insulin
• Glucose

Tags

NGSS.HS-LS1-3

What happens in the liver when the bloodstream has lower than usual glucose levels

• Glucose is converted to glycogen
• Glycogen is converted to glucose
• The liver keeps storing glycogen

Tags

NGSS.HS-LS1-3

No insulin is produced

• Type 1
• Type 2

Tags

NGSS.HS-LS1-3

Type of diabetes characterized by insulin resistance

• Type I

• Type II

When you are dehydrated what out of the following options will happen? [3]

• Less ADH will be secreted by the pituitary.

• More water will be reabsorbed back into the blood.

• Osmoreceptors in the hypothalamus will detect increased blood concentration.

• The volume of urine will increase.

• More ADH will be secreted by the pituitary.

Tags

NGSS.HS-LS1-3