Homeostatsis

Question 1

What is homeostasis

Answer 1

The regulation of the internal environment regardless of external environment is called homeostasis

Question 2

What is hypothalamus

Answer 2

Its the body’s temperature monitoring centre

Question 3

Hypothalamus is sensitive to what

Answer 3

Nerve impulses

Question 4

(Hypothalamus) Information is communicated by e______ impulses through nerves to effectors, which being about responses to return t_______ to n_____

Answer 4

Electrical
Temperature
Normal

Question 5

What is our ideals core temperature for a human is…?

Answer 5

37oC

Question 6

What can happen if your body is too hot

Answer 6

Can cause heatstroke

Question 7

What can happen if your body is too cold

Answer 7

Hypothermia

Question 8

What do mammals and birds eat large quantities of to fuel their central heating systems

Answer 8

Energy rich food

Question 9

The ability to maintain a constant temperature involves what?

Answer 9

Homeostasis

Question 10

What’s the largest organ in the body

Answer 10

Skin

Question 11

What are the responses to an increase in temperature include

Answer 11

Sweating
Skin blood vessels dilate ( blood diverted to the skin )
Hairs on skin relax
Reduce metabolic rate

Question 12

Why dose sweating help you cool down

Answer 12

Message are sent to the sweat glands resulting in increased sweat production.
Heat energy form the body will convert the water into sweat to water vapour.
This lowers the body temperature

Question 13

Vasodilation helps cool down because

Answer 13

Blood capillaries in the skin dilate, increasing blood flow to the skin this increases the heat lost by radiation

Question 14

Why dose decreased metabolic rate help you cool down

Answer 14

Metabolic reactions generate heat decreasing the rate reduces heat production

Question 15

What responses dose your body do to increase your body temperature

Answer 15

Shivering
Hairs stands up
Blood vessels constrict ( blood is diverted away from the skin)
Increase in metabolic rate

Question 16

Shivering helps you heat up why

Answer 16

Rapid involuntary contractions of skeletal muscles generates heat

Question 17

Why dose Vasoconstriction help you heat up

Answer 17

Blood capillaries in the skin constrict, decreasing blood flow to the skin this decreases heat loss by radiation

Question 18

What is thermoregulation

Answer 18

This is the regulation of body temperature so that it stays at a set point of 37oC

Question 19

If the body temperature falls too low then biological reaction may happen….

Answer 19

to slow for cells to survive

Question 20

What cells are may be damaged if your body temperature rises too high

Answer 20

Enzymes and other cell proteins

Question 21

Why dose Contraction of hair erector muscles help you heat up

Answer 21

Tis traps a layer of warm air at the skin that acts as extra insulation ( goosebumps )

Question 22

Do you sweat more when it is warm

Answer 22

Yes

Question 23

Dose the shunt vessel dilate when it’s warm or cold

Answer 23

Cold

Question 24

What are voluntary responses when the environment is hot

Answer 24

Removing clothes
Taking a cold drink
Opening a window

Question 25

What are voluntary responses when the environment is cold

Answer 25

Putting on extra clothes Having a hot drink. Turning up the heating

Question 26

When dose hypothermia occur

Answer 26

When your body temperature falls below 35oC

Question 27

If hypothermia is left untreated what can it eventually lead to

Answer 27

Heart failure Respiratory system failure death

Question 28

When dose blood glucose rise

Answer 28

After eating

Question 29

What is the name for too much glucose

Answer 29

Hyperglycaemia

Question 30

Which type of diabetes is an autoimmune disease A. Type 1 B. Type 2

Answer 30

A

Question 31

I what Are the symptoms of diabetes for type one and type two

Answer 31

Increase urination Throat Obesity Kidney damage Blindness Amputation ( diabetics foot )

Question 32

What’s the name when you have not enough glucose

Answer 32

Hypoglycaemia

Question 33

What are the symptoms of having not enough glucose

Answer 33

Sweating Anxiety tremor confusion Dizziness Hunger Coma

Question 34

Blood sugar levels are controlled by h_____ that are secreted by the p_____

Answer 34

Hormones Pancreas

Question 35

What is the hormone called that is produced by the body to maintain normal blood glucose levels

Answer 35

Insulin

Question 36

What dose your body do when in sense a rise in blood sugar

Answer 36

-Rise in blood sugar detected by pancreas - pancreas produces insulin - Insulin converts excess glucose to glycogen, which is stored in the liver

Question 37

What happens when your body senses a drop in blood sugar

Answer 37

- Drop in blood sugar detected by pancreas - pancreas produces glucagon - glucagon converts glycogen stored in liver back to glucose

Question 38

What is stored In The liver

Answer 38

Glycogen

Question 39

What number of things are produced by the pancreas ( Bonus question name them )

Answer 39

Glucagon and insulin

Question 40

Which organ detects changed in blood glucose concentration

Answer 40

Pancreas

Question 41

Describe the level of blood glucose that woud cause: A) glycogen to be converted to glucose B) glucose being converted to glycogen

Answer 41

A) glucose levels fall B) glucose levels rise

Question 42

What is the hypothalamus sensitive to

Answer 42

Nerve impulses