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7th Grade Science > 7th Science Human Body System Outline > Flashcards

7th Science Human Body System Outline Flashcards

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1
Q

Name the body system with these major function -

  1. Releases chemical messages into the bloodstream.
  2. Helps to maintain homeostasis in the body
A

Endocrine System

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2
Q

What are the major organs in the Endocrine System?

A
  1. Endocrine Glands

2. Hormones

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3
Q

What is a chemical that is produced by an endocrine gland in one part of an organism and is carried in the bloodstream to another part of the organism?

A

Hormone

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4
Q

What other body systems does the Endocrine System work with?

A

Reproductive, Muscular, Skeletal and Nervous Systems

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5
Q

What reduces the amount of stress hormone in the blood?

A

Laughter

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6
Q

What is a physical who specializes in the diseases of the endocrine system?

A

Endocrinologist

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7
Q

Name the body system with these major function -

  1. Gathers information, or receives information, from your five senses - vision hearing, smell, taste and touch
  2. Processes the information
  3. Responds to information or stimuli
  4. maintains homeostasis
A

Nervous System

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8
Q

What are the major organs in the Nervous System?

A
  1. Brain
  2. Spinal Cord
  3. Neurons, or nerve cells
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9
Q

What is the part of the brain that controls memory, language, and thought?

A

Cerebrum

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10
Q

What is the part of the brain that coordinate voluntary muscle movement and regulate balance and posture?

A

Cerebellum

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11
Q

What is that area of the brain that controls involuntary functions and connects the brain and the spinal cord?

A

Brain Stem

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12
Q

What other body systems does the Nervous System work with?

A

Muscular and Skeletal

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13
Q

How fast can the signals received by the nervous system travel?

A

400 km/hour

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14
Q

Name the body system with these major function -

  1. Transports food, water, oxygen, and other materials to your body’s cells and tissues through your blood
  2. Eliminates waste materials through your blood
A

Circulatory System

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15
Q

What are the major organs in the Circulatory System?

A
  1. Heart

2. Blood Vessels

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16
Q

What are the upper two chambers of the heart?

A

Atria

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17
Q

What are the lower two chambers of the heart?

A

Ventricles

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18
Q

What is a vessel that carries blood away from the heart?

A

Artery

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19
Q

What is a vessel that brings blood toward the heart?

A

Vein

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20
Q

What other body systems does the Circulatory System work with?

A

Respiratory and Lymphatic Systems

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21
Q

What is size of the average human heart?

A

5 inches tall, 3.5 inches wide and 2.5 inches thick

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22
Q

Is the size of the human heart the same in everyone?

A

No, it varies by the size of the person.

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23
Q

Name the body system with these major function -

  1. To take in oxygen
  2. To eliminate carbon dioxide
A

Respiratory System

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24
Q

What are the major organs in the Respiratory System?

A
  1. Lungs
  2. Diaphragm
  3. Trachea
  4. Bronchi
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25
Q

What is the main organ of the respiratory system?

A

Lungs

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26
Q

What is a large muscle that contracts and relaxes to move air in and out of the lungs?

A

Diaphragm

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27
Q

What other body systems does the Respiratory System work with?

A

Circulatory System

28
Q

What are caused when your diaphragm is irritated by eating too quickly or too much, or being nervous or excited?

A

Hiccups

29
Q

Name the body system with these major function -

  1. Collects and eliminates wastes from the body
  2. Regulates the level of fluid in the body
A

Excretory System

30
Q

What are the major organs in the Excretory System?

A
  1. Kidneys

2. Bladder

31
Q

What is a bean-shaped organ that filters, or removes, wastes from blood?

A

Kidney

32
Q

What is a muscular sac that holds urine until the urine is excreted?

A

Bladder

33
Q

What body system does the Excretory System work with?

A

Digestive System

34
Q

What can cause temporary color changes of your urine?

A

Some foods

35
Q

Name the body system with these major function -

  1. Ingestion and digestion of food
  2. Absorption of nutrients from food
A

Digestive System

36
Q

What are the major organs of the Digestive System?

A
  1. Tongue
  2. Salivary Glands
  3. Mouth
  4. Esophagus
  5. Stomach
  6. Small Intestine
  7. Large Intestine
37
Q

What is the mechanical and chemical breakdown of food into small particles that your body can absorb and use?

A

Digestion

38
Q

What is a muscular tube that connects the mouth to the stomach?

A

Esophagus

39
Q

What is the waves of muscle contractions that move food through the esophagus and the rest of the digestive tract?

A

Peristalsis

40
Q

What other body systems does the Digestive System work with?

A

Excretory System

41
Q

Your digestive system is home to how many bacteria?

A

Between 10 and 100 trillion

42
Q

Name the body system with these major function -

  1. Enables your skeleton to move
  2. To maintain balance or stability
  3. Protects your body
  4. Regulates body temperature
A

Muscular System

43
Q

What are the major organs of the Muscular System?

A
  1. Skeletal muscles
  2. Heart (cardiac muscles)
  3. All organs made of smooth muscle tissue
44
Q

What is a voluntary muscle that attaches to bones?

A

Skeletal Muscle

45
Q

What is an involuntary muscle found only in the heart?

A

Cardiac Muscle

46
Q

What is an involuntary muscles that are smooth in appearance?

A

Smooth Muscle

47
Q

What other body systems does the Muscular System work with?

A

Skeletal System

48
Q

How many facial muscles do you use when you smile?

A

17

49
Q

How many facial muscles do you use when you frown?

A

43

50
Q

When do you use the least about of facial muscles?

A

When you smile

51
Q

Name the body system with these major function -

  1. Provides support
  2. Enables different parts of the body to move in different ways
  3. Skull protects the soft tissue of the brain
  4. Bones store fat and calcium
  5. Red blood cells produced in bones
A

Skeletal System

52
Q

What are the major organs in the Skeletal System?

A
  1. Bones

2. Skeleton

53
Q

What is a strong, flexible tissue that covers the ends of bones?

A

Cartilage

54
Q

What is where two or more bones meet?

A

Joint

55
Q

What is the tissue that connects two bones?

A

Ligament

56
Q

What other body systems does the Skeletal System work with?

A

Muscular System

57
Q

What is the largest bone in the body?

A

Femur

58
Q

What is the smallest bone in the body?

A

Stirrup - a bone in your ear

59
Q

How many bones are in the body?

A

206 to 208 depending on the scientist counting

60
Q

Name the body system with these major function -

  1. Ensures survival of the human species
  2. Produces and delivers six cells
A

Reproductive System

61
Q

What are the major organs in the Reproductive System?

A
  1. In males - testes, ducts, urethra, penis

2. In females - ovaries, fallopian tubes, vagina, uterus

62
Q

What is the male reproductive cell?

A

Sperm

63
Q

What is the female reproductive cell?

A

Egg

64
Q

What other body systems does the Reproductive System work with?

A

Endocrine System produces hormones that control and aid in sexual development.

65
Q

An egg is about how many times as wide as the head of a sperm.

A

40

7th Grade Science (19 decks)

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