Body Logs

Question 1

What is homeostasis.

Answer 1

Regulation of internal environment in response to environmental change.

Question 2

What does homeo and stasis mean?

Answer 2

Homeo= same, Stasis = still

Question 3

What is a negative feed back loop?

Answer 3

Stimulus > sensor > control > effector > ceases stimulus.

Question 4

Give an example of a negative feedback loop?

Answer 4

Temperature regulation

Question 5

What is a positive feedback loop?

Answer 5

Effector increases original stimulus and stops when initiator ceases

Question 6

Give an example of a positive feedback loop?

Answer 6

Clotting

Question 7

Give four features of temperature regulation when hot

Answer 7

Vasodilation, pilorelaxation, sweating, stretching out

Question 8

Give four features of temperature regulation when cold

Answer 8

Vasoconstriction, piloerection, shivering, curling up

Question 9

Give the negative feedback cascade when body temp exceeds 37 degrees

Answer 9

Body temp hot > nerved cells in skin brain > temperature regulation centre > sweat glands > reduces body temp

Question 10

Is body temp constant?

Answer 10

No it fluctuates throughout the day.

Question 11

Describe the clotting cascade

Answer 11

Break in BV > clotting at site by platelets > release chemokines to attract more platelets > increases clotting further until break is sealed

Question 12

What is normal core body temp?

Answer 12

36.5-37.5

Question 13

What temperature is mild hypothermia?

Answer 13

32-35

Question 14

What temp is severe hypothermia?

Answer 14

Below 32

Question 15

What temperature when u have no vital signs?

Answer 15

Below 28

Question 16

What temperature indicates a fever?

Answer 16

Temperature above 38 degrees

Question 17

What temp is heat stroke?

Answer 17

40-46

Question 18

What temperature is heat exhaustion?

Answer 18

Above 46

Question 19

Name the features of severe hypothermia

Answer 19

Shivering stood, rigid muscles, slow and weak pulse, drowsiness.

Question 20

Mild hypothermia symptoms

Answer 20

Shivering, fatigue, slurred speech, confusion

Question 21

Fever symptoms

Answer 21

Pale sweaty skin, cramps in arms, legs, stomach

Question 22

Heat stroke symptoms

Answer 22

Flushed dry skin, hot to touch, strong pulse

Question 23

Heat exhaustion symptoms

Answer 23

Unconsciousness, fits, seizures, headaches, dizzy

Question 24

No vital signs

Answer 24

Unconscious, dilated pupils, pulse undetectable, synosis

Question 25

What temperature do you regain consciousness after severe hypothermia?

Answer 25

At 32 degrees

Question 26

What is the optimal PH

Answer 26

7.35-7.45

Question 27

What systems is PH maintained by?

Answer 27

Lung respiratory balance and kidneys metabolic balance through respiratory acidosis and renal alkalosis