Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

endocrine system > homeostasis > Flashcards

homeostasis Flashcards

1
Q

What are the three main systems of homeostasis in body systems that must be regulated?

A

thermoregulation, osmoregulation, chemical regulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What temperature must be kept in the human body to maintain homeostasis?

A

37 degrees Celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the regulation of the body’s salt and water balance called?

A

osmoregulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why is electrolyte balance extremely important for the body?

A

For carrying out electrical communication of the heart and nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Regulation of blood glucose levels in the body is a form of what kind of homeostasis process?

A

chemical regulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Body systems for maintaining homeostasis fall into what three main categories?

A

sensor, control center, effector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What organ system acts as a sensor in homeostasis?

A

the nervous system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the main instrument that the body uses to detect changes in the body?

A

receptor proteins in neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The control center of the body?

A

The brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the organs called that carry out the processes needed to maintain homeostasis that are controlled by the endocrine and the nervous system?

A

effectors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the effector that regulates water and salt balance in the body?

A

kidney

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How does the pituitary gland help in maintaining blood pressure?

A

When blood pressure is low the pituitary gland releases antidiuretic hormone that travels to the kidney where it promotes the reabsorption of water from the urine filtrate, thus increasing blood pressure and maintaining homeostasis of water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the main components of a feedback loop?

A

stimulus, sensor, control center, effector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

In a feedback loop the product of the —– becomes the stimulus that controls the system

A

effector

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

In a ——– feedback loop the product of the effector is stimulates the effector and increases the product

A

positive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Signals of the brain to release oxytocin in childbirth to increase contractions of the uterus in childbirth is an example of

A

positive feedback loop

17
Q

A ——- feedback loop occurs when the original state is restored due to a response that opposes that change

A

negative

18
Q

How does the hypothalamus regulate body temperature?

A

when our core temperature gets too hot, it processes this sensory information and causes effector organs, such as sweating and dilating blood vessels to release excess heat that allow our temperature to decrease

19
Q

The body’s thermostat

A

hypothalamus

20
Q

Normal blood glucose levels after fasting are

A

100 mg/dl

21
Q

Two hours after eating, blood glucose levels should be no more than

A

140 mg/dl. higher levels than this may indicate diabetes

22
Q

when homeostasis controls break down disease can result, such as this disease in which the body is unable to regulate blood glucose levels. What is this disease called?

A

diabetes

23
Q

Which of the following best describes homeostasis?

A

The ability to maintain a reasonable stable internal condition regardless of surrounding factors

24
Q

This mechanism is in play when the original state is restored due to a response that opposes that change

A

negative feedback loop

25
Q

communication within your body is needed for homeostasis. Which system(s) provides this communication?

A

nervous system and endocrine system

26
Q

a type of animal that uses internal processes to maintain body temperature

A

endotherm

27
Q

A type of animal that relies on external processes to maintain body heat

A

ectotherm

28
Q

Having temperature out of homeostasis for more than a few minutes is called

A

thermoregulatory dysfunction

29
Q

What happens if the body temperature goes above 40 degrees Celsius (104 Fahrenheit?

A

heatstroke, brain damage, dehydration

30
Q

Being too cold or too hot can cause what to stop functioning?

A

the heart which will limit blood supply to the brain causing death

31
Q

What are the four mechanisms for temperature regulation?

A

convection by the heart pumping blood throughout the body
radiation of heat away from the body
conduction of heat from the body’s core to the surface
evaporation of sweat

32
Q

Fever, heatstroke, and frostbite are examples of what kind of illness?

A

thermoregulatory dysfunction

33
Q

What are irregular heartbeats called?

A

arrythmias

34
Q

What do most people actually die of when they have hypothermia?

A

cardiac arrest caused by an arrhythmia

35
Q

In ectotherms, what controls body temperature?

A

externa forces

36
Q

How are endotherms able to maintain a stable body temperature that is several degrees warmer than their environment?

A

They maintain a high metabolic rate by burning lots of calories

endocrine system (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions