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Lesson 7: Human Body & Homeostasis Flashcards | StudBud
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Lesson 7: Human Body & Homeostasis
Lesson 7: Human Body & Homeostasis
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1
Which pair of systems make the body move?
muscular and skeletal
circulatory and endocrine
muscular and respiratory
nervous and skeletal
2
The largest organ, which regulates body temperature and serves as a barrier against harmful microorganisms
Integumentary
Skeletal
Nervous
Endocrine
3
What does the respiratory system do?
allows the body to move
controls body functions
to break down foods
to take oxygen in and dispose of carbon dioxide
4
Heart rate and breathing rate increase during exercise to meet the muscles' increased demand for oxygen.
False
True
5
What is the function of skin, hair and nails ?
Allows the body to move
Regulate the body through hormones
Protect the body from the external environment
Provide a way for carbon dioxide to leave the body
6
The function of the excretory system is to
produce enzymes the body needs to break down food
break food into small molecules that the body can absorb
dispose of wastes and regulate water content of blood
move materials from the environment into the body
7
Your core temperature drops to 97.2F, your muscles shiver to warm you up. Your body returns to 98.6F.
negative feedback loop
hypothermia
positive feedback loop
equilibrium
8
The baby's head pushes on the cervix and triggers oxytocin to intensify contractions until birth. This is...
negative feedback loop
positive feedback loop
9
Glands secrete hormones that are transported by blood. What body systems are described?
Endocrine & circulatory
Excretory & muscular
Respiratory & circulatory
Endocrine & excretory
10
Two body systems work together to help remove waste products from blood. What are these 2 systems?
muscular and excretory
circulatory and integumentary
skeletal and digestive
circulatory and excretory
11
How will the body MOST likely respond if the amount of oxygen in your blood decreases?
increasing breathing rate
decreasing movement
increasing body metabolism
decreasing blood pressure
12
Cystic fibrosis is a life-threatening disorder that damages lung and digestive tissue. It affects what 2 body systems
circulatory and respiratory
circulatory and digestive
digestive and respiratory
digestive and skeletal
13
Which body system moves oxygen into the blood and removes carbon dioxide from the blood?
excretory
digestive
respiratory
skeletal
14
Which of the following is not part of the integumentary system?
trachea
fingernails
hair
skin
15
Which term describes the process by which organisms maintain a stable internal environment?
immunity
homeostasis
equilibrium
disease
16
Your body helps cool you down by dilating blood vessels to release excess heat.
False
True
17
Which part of a feedback loop is responsible for sensing stimuli?
receptor
control
effector
all of these
18
Which body system controls hormone production and maintains homeostasis in the body?
Endocrine
Digestive
Integumentary
Nervous
19
Which process is best classified as a physical change?
Teeth grinding a cracker into smaller pieces in the mouth
Bacteria converting lactose into simple sugars in the intestines
Digestive enzymes breaking down proteins into smaller fragments
Saliva converting the starch in crackers into simple sugars
20
Bananas give off gas that causes the other bananas to ripen. The bunch of bananas ripen faster and faster. This is...
positive feedback
negative feedback
21
What part of a feedback loop is responsible for acting out the response to the change?
all of these
receptor
control
effector
22
Which of the following is a chemical change that occurs to food?
The breakdown of molecules of food by enzymes and acid in the stomach
The reduction in size of food particles as food is chewed
None of the above
The movement of food to the stomach after it is swallowed
23
Which of the following BEST explains why there are 2 (respiratory and circulatory) body systems to move oxygen?
One moves oxygen to the upper body, the other moves oxygen to lower body
One moves oxygen while awake, the other moves oxygen while asleep
One moves oxygen into the body, the other moves oxygen through the body
One moves oxygen into the body, the other moves oxygen out of the body
24
This system moves oxygen to the cells and helps the body fight infections
endocrine system
circulatory system
muscular system
digestive system
25
The hypothalamus regulates body temperature. Which system is the hypothalamus in?
endocrine system
digestive system
lymphatic system
nervous system
26
Which term is associated with negative feedback?
inhibitory response
stimulatory response
27
Which body system controls hormone production and maintains homeostasis in the body?
Integumentary
Circulatory
Endocrine
Nervous
28
Which term is associated with positive feedback?
inhibitory response
stimulatory response
29
Which of the following are functions of the skeletal system?
all of the above
provides framework for mobility
Protects vital organs
produces new red blood cells
30
Which statement is true about body systems in an organism?
All systems perform the same life function.
Each system uses the same organs.
Each system works independently.
All systems work together to maintain health.
