Homeostasis

Question 1

definition of Homoestasis

Answer 1

The word homeostasis describes the body’s ability to maintain relatively stable internal conditions even though the outside world is constantly changing…..it indicates a dynamic state of equilibrium, or balance in which internal conditions change and vary but always within relatively narrow limit

Question 1

definition of Homoestasis

Answer 1

The word homeostasis describes the body’s ability to maintain relatively stable internal conditions even though the outside world is constantly changing…..it indicates a dynamic state of equilibrium, or balance in which internal conditions change and vary but always within relatively narrow limit

Question 2

what is a receptor ?

Answer 2

• biological sensor
• monitors and responds to stimuli cause ny enviromental changes
• sends signals by apparent pathway

Question 3

what is the control centre ?

Answer 3

• determines a set point that needs to be mantained
• sets paramenterers for the whle system
• anakyses signals from the receptor to see whta action needs to be taken

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Question 4

what is the effector ?

Answer 4

• receives information from the control centre by the efferent pathway
• action taken by effector feedback to influenece receptor

Question 4

what is the effector ?

Answer 4

• receives information from the control centre by the efferent pathway
• action taken by effector feedback to influenece receptor

Question 5

how do cells get their nutrients and expel their waste ?

Answer 5

By making use of extracellular waste

Question 6

what is the extra cellular fluid made up of ?

Answer 6

plasma and interstitial fluid

Question 6

what is the extra cellular fluid made up of ?

Answer 6

plasma and interstitial fluid

Question 7

what are the 3 types of muscle tissue ?

Answer 7

1. Skeletal muscle
2. Cardiac muscle
3. Smooth muscle

Question 7

what are the 3 types of muscle tissue ?

Answer 7

1. Skeletal muscle
2. Cardiac muscle
3. Smooth muscle

Question 8

what are the 4 areas of the nervous system ?

Answer 8

1. the brain
2. the spinal cord
3. nerves involved in muscle contraction and galnd secretion
4. Nerves involved in signals that originate from external environment and that regulate some changeable internal factors such as blood pressure

Question 9

what is an epithelial tissue ?

Answer 9

tissue made up of specialist cells that are good at exchanging materilas and signlas with their extenal environment