The Body: Intro Flashcards

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1
Q

Define organ system

A

A group of organs that work together to fulfil several special functions / purposes within the body

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2
Q

Organs

A

Aggregation of tissues performing similar functions

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3
Q

Tissues

A

A group of cells that work together to perform a particular function

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4
Q

List some key functions of the body

A

Control and regulation
Environmental exchange
Growth and energy
Support and movement
Fluids and transport

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5
Q

Define homeostasis

A

Self-regulating process by which an organism can maintain stability whilst adjusting to changing internal/external conditions

Eg. Temp, blood pressure, blood glucose levels

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6
Q

Negative feedback

A

Correct the change detected

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7
Q

Amplifies the change detected

A

Positive

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8
Q

List problems that can arise when you can’t regulate systems

A

High good pressure
Water retention
Respiration and breathing issues
Diabetes

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9
Q

When interactions with environment go wrong what can happen?

A

Pathogens and viruses evade immune response
Bodies date it relatively harmless chemicals as being dangerous= develop allergies or auto-immune disease

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10
Q

Level of organisation

A

Human body
Organ system
Organ
Tissues
Cells
Molecules
Chemicals

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11
Q

List 7 organ systems
REIC NUD

A

Reproductive
Endocrine
Immune
Cardiovascular
Nervous
Urinary
Digestive

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12
Q

Function of immune system

A

Protect against :foreign bodies
And against disease

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13
Q

Function of digestive system

A

Process and digest food
Store energy
Protection

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14
Q

Main organs of digestive system

A

Stomach
Liver
Gallbladder
Pancreas
Intestines

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15
Q

Function of urinary system

A

Excrete waste
Control water balance
Store urine
Regulate ion and pH

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16
Q

Main organs of urinary system

A

Kidneys
Bladder
Ureter and urethra

17
Q

Function of nervous

A

Detect and respond to stimuli
Control and regulate activity of other organs

18
Q

Function of cardiovascular system

A

Distribution of heat
Transport of blood, water, oxygen and dissolved materials

19
Q

Function of reproductive system

A

Provide sex hormones
Support developing embryo from conception to delivery- females

20
Q

Why is growth + energy important?

A

‘Anything wrong with cell division =cancer
DNA = inherited disorders
Baby and adult eg different responses to drugs

21
Q

Role of growth and energy

A

Genes and inheritance
Cell division
Tissue growth and repair