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Homeostasis, Nervous and Circulatory System

Total questions: 68

Worksheet time: 2hrs 57mins

Name
Class
Date
1.
What is the name of the receptor that detect the rise and fall of body temperature?
a)
Thermoreceptor
b)
Osmoreceptor
c)
Baroreceptor
d)
Chemoreceptor
2.

When the body temperature drop below normal ranges, arterioles in the skin will

a)

dilate to allow less blood to flow to skin surface

b)

constrict to allow less blood to flow to skin surface

c)

dilate to allow more blood to flow to skin surface

d)

constrict to allow more blood to flow to skin surface

3.
The maintenance of an organism’s internal environment is called:
a)
compensating
b)
homeostasis
c)
balancing
d)
routine
4.
If the environment gets cold, we will often shiver in order to:
a)
keep body temperature the same as the external temperature
b)
decrease body temperature
c)
increase body temperature
d)
regulate blood pressure
5.

Why does pulse rate increase during exercise?

a)

Oxygen and carbon dioxide must be removed from the body ASAP

b)

Gas exchange must happen more quickly than when a person is at rest

c)

Oxygen must be moved to the lungs and carbon dioxide must be moved to cells more quickly

d)

Carbon dioxide must be moved to the kidneys to be excreted

6.

What is an example of a positive feedback mechanism?

a)
b)
7.
Maintaining body temperature is an example of a:
a)
negative feedback loop
b)
positive feedback loop
8.
If the calcium in your blood decreases below homeostasis levels, a gland in the brain will sense the decrease and send a chemical message to your bones. Your bones will release calcium into the blood, bringing blood calcium levels back up.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
9.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 
a)
Positive Feedback Response
b)
Negative Feedback Loop 
10.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
11.
Which system sends electrical messages that helps control the body's responses to internal and external changes?
a)
nervous
b)
endocrine
c)
reproductive
d)
integumentary
12.
These two body systems regulate feedback mechanisms.
a)
Skeletal & Muscular
b)
Skeletal & Endocrine
c)
Muscular & Nervous
d)
Endocrine & Nervous
13.

Which of the following are in the correct order?

a)

organ system, cell, organ, tissue, organism

b)

cell, organ, tissue, organ system, organism

c)

cell, tissue, organelle, organ system, organism

d)

cell, tissue, organ, organ system, organism

14.
The "cause" for something to happen is the
a)
response
b)
effect
c)
stimulus
d)
homeostasis
15.

Salt water crocodiles bask in the sun for several hours every morning. which one of the following statements best describes the method of thermoregulation in salt water crocodiles?

a)

Endothermy, increase body temperature to increase rate of metabolism reactions in cells

b)

Ectothermy, decrease body temperature to increase rate of metabolic reactions in cells.

c)

Endothermy, decrease body temperature to increase rate of metabolic reactions in cells

d)

Ectothermy, increase body temperature to increase rate of metabolic reactions in cells

16.

What part of the negative feedback loop is what happens inside of the organism, as the result of the effector?

a)

Initiation event

b)

Response

c)

Receptor

d)

Effector

17.
a)

Nucleus

b)

Cell Body

c)

Axon

d)

Node of Ranvier

18.
a)

Nucleus

b)

Cell Body

c)

Axon

d)

Node of Ranvier

19.
a)

Nucleus

b)

Cell Body

c)

Axon

d)

Node of Ranvier

20.
a)

Dendrites

b)

Axon Terminals

c)

Myelin Sheath

d)

Schwann Cells

21.
a)

Dendrites

b)

Axon Terminals

c)

Myelin Sheath

d)

Schwann Cells

22.
a)

Dendrites

b)

Axon Terminals

c)

Myelin Sheath

d)

Schwann Cells

23.
a)

Dendrites

b)

Axon Terminals

c)

Myelin Sheath

d)

Schwann Cells

24.

What does the neuron's nucleus do?

a)

Controls the actions of the neuron

b)

Produces food for the neuron

c)

Carries information from the cell body to other neuronsThis is a wrong answer

d)

Controls speed of electrical signal through the axon

25.
Multiple sclerosis is an autoimmune disease in which the body's own immune system destroys the _____________ of the nerve axons. 
a)
Myelin
b)
Dendrites
c)
Axon Terminal
d)
Nodes of Ranvier
26.
Impulses that travel down a myelinated neuron move faster than if it was unmyelinated.
a)
True
b)
False
c)
I'm not sure
27.
W
a)
Axon Terminal Button
b)
Neurotransmitters
c)
Dendrite
d)
Synapse
28.
_____ neurons carry messages to the central nervous system
a)
Motor
b)
Inter
c)
Sensory
d)
Fun
29.
______ send signals away from neurons whereas ______ receive signals from other neurons.  
a)
Axons; Dendrites
b)
Synapses; dendrites
c)
Dendrites; axons
d)
Axons; synapses
30.
X
a)
Axon Terminal Button
b)
Neurotransmitters
c)
Dendrite
d)
Synapse
31.
Z
a)
Dendrite
b)
Axon Terminal
c)
Neurotransmitters
d)
Synapse
32.
What is the chemical used by a neuron to transmit an impulse across a synapse to another nerve cell?
a)
Neurotransmitters
b)
Synapse
c)
Threshold
d)
Impulse
33.

Motor neurons carry impulses __________ the brain

a)

towards

b)

away from

c)

within

34.

What type of neuron is A?

a)

Sensory

b)

Inter

c)

Motor

35.

What type of neuron is C?

a)

Sensory

b)

Inter

c)

Motor

36.

Where would the nerve impulse start in this reflex arc?

a)

A

b)

C

c)

D

d)

E

37.

In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________

a)

Spinal cord, CNS

b)

CNS, muscle

c)

Spinal cord, muscle

d)

Muscle, CNS

38.

What is the main organ of the circulatory system?

a)

small intestine

b)

bone

c)

lungs

d)

heart

39.

Veins carry oxygen poor blood back to the heart.

a)

False

b)

True

40.

Arteries carry oxygen rich blood away from the heart.

a)

True

b)

False

41.
______________ are the smallest blood vessels.
a)
Arteries
b)
Veins
c)
Capillaries
42.
The circulatory system works with the ___________ system to provide our body with oxygen.
a)
respiratory
b)
digestive
c)
muscular
d)
skeletal
43.
The circulatory system works with the __________ system to obtain energy from nutrients that we eat. 
a)
respiratory 
b)
digestive
c)
skeletal
d)
nervous
44.
The heart has ___ chambers.
a)
1
b)
2
c)
3
d)
4
45.
What does Deoxygenated mean?
a)
Oxygen-rich
b)
Blood flow
c)
Oxygen-poor
d)
Water Flow
46.

Coronary arteries...

a)

supply the heart muscle cells with a supply of blood.

b)

supply the brain cells with a supply of blood.

c)

contain deoxygenated blood.

d)

when clogged, cause a stroke.

47.

The main vein(s) that brings blood to the right atrium?

a)

Aorta

b)

Pulmonary veins

c)

Superior and Inferior vena cava

d)

Jugular vein

48.

Name part N.

a)

Right atrium

b)

left atrium

c)

right ventricle

d)

left ventricle

49.

Name part A.

a)

Pulmonary artery

b)

Pulmonary vein

c)

Superior vena cava

d)

Aorta

50.

Name part B.

a)

Pulmonary arteries

b)

Pulmonary veins

c)

Superior Vena cava

d)

Aorta

51.

Name part M.

a)

Tricuspid valve

b)

Semilunar valve

c)

Bicuspid valve

d)

Mitral valve

52.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

o break down food and absorb nutrients

c)

to remove oxygen from the body and deliver carbon dioxide

53.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
54.

These are the two two main branches from the trachea (one to each lung)

a)

bronchi

b)

alveoli

c)

capillaries

d)

bronchioles

55.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
56.

Can a hormone affect any cell?

a)

Yes, they affect all cells

b)

No, the cell has to have a matching receptor

c)

Maybe

d)

Depends on the situation

57.

How do hormones get to their target cells?

a)

nerve impulses

b)

floating in the blood stream

c)

electric and chemical signals

d)

respiration

58.

Which gland is the connection between the nervous system and endocrine system?

a)

pineal

b)

pituitary

c)

hypothalamus

d)

adrenal

59.

If you have growth problems (too big or too small) which gland may be the problem?

a)

ovaries

b)

pituitary

c)

hypothalamus

d)

adrenal

60.
The major function of the pituitary gland is to act on target cells and on other glands.
a)
True
b)
False
61.

What is the endocrine system?

a)

A system of vessels that circulates blood around the body.

b)

A group of bones and tissue that provides support and structure for the body.

c)

A group of glands that work together with the nervous system to coordinate all body functions

d)

A group of organs that is responsible for eliminating wastes.

62.

What is the main function of the endocrine system?

a)

It creates chemicals, or hormones, that are sent around the body to maintain homeostasis.

b)

It creates electrical messages that are sent around the body to maintain homeostasis.

c)

It maintains the correct level of oxygen in the body to maintain homeostasis.

d)

It releases waste from the body to maintain homeostasis.

63.

The "master gland" is known as the __________________.

a)

thyroid gland.

b)

adrenal gland.

c)

pancreas.

d)

pituitary gland.

64.

Which term refers to the body's use of energy for energy and growth?

a)

Excretion

b)

Metabolism

c)

Digestion

d)

Respiration

65.

What kind of reaction is the fight-or-flight response primarily?

a)

cognitive

b)

physiological

c)

behavioral

66.

What evolutionary purpose does the fight-or-flight response serve?

a)

to prepare the body to react effectively to perceived threats

b)

To protect the survival prospects of an animal's offspring

c)

To remain relaxed during stressful situations

67.

The fight-or-flight response is also referred to as

a)

General adaptation syndrome

b)

Stress management

c)

Acute stress response

68.

What happens to the heart rate during the fight-or-flight response?

a)

Increases

b)

Remains the same

c)

Decreases

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