Chapter 1 Review Flashcards

1
Q

Human life begins when a tiny egg cell and a sperm unite to form a fertilized egg cell

A

zygote

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2
Q

When they become a hollow sphere, they are referred as

A

blastocyst

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3
Q

Once implantation occurs, the cluster of cells

A

embryo

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4
Q

a sac of blood vessels forms between the bodies of the baby and the mother.

keeps the baby attached to the wall of the uterus and also allow exchanges between his blood and the blood of his mother.

A

placenta

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5
Q

a bundle of three blood vessels

A

umbilical cord

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6
Q

the name for an unborn baby when he is distinctly recognizable as a miniature baby

A

fetus

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7
Q

In what week is the most important period of growth has been completed

A

9th week

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8
Q

In what month does a baby can hear noises, recognizing both sounds and rhythms.

A

6 months

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9
Q

Between what ages that a child’s energy level is high

A

3 and 6

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10
Q

the transition change from childhood into adulthood

A

adolescence

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11
Q

the stage of development in which the body becomes physically able to reproduce

A

Puberty

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12
Q

The stimulators of the endocrine system

A

hormone

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13
Q

The study of endocrine system

A

endocrinology

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14
Q

the master gland that regulates growth

A

pituitary gland

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15
Q

a part of the brain that controls your body’s automatic activities and is largely responsible for the physical effects of your emotions.

A

hypothalamus

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16
Q

a growth hormone, regulates your overall growth rate by stimulating the growth of new tissues.

A

Somatotropin hormone

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17
Q

secreted by the posterior lobe of the pituitary gland, helps regulate blood pressure and the body’s water balance.

A

Antidiuretic hormone

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18
Q

the gland that is located on the front of the neck, at the junction of the larynx and trachea

A

thyroid gland

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19
Q

the chemical and physical processes by which the body burns food and generates energy

A

metabolism

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20
Q

what contains iodine, is the principal hormone produced by the thyroid gland

A

thyroxine

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21
Q

what gland regulates the amount of calcium in the blood

A

parathyroid gland

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22
Q

the emergency action that prepares the body for stressful situations

A

Epinephrine or adrenaline

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23
Q

what steroid stimulates the kidneys to conserve sodium and excrete potassium and helps regulate the body’s water balance.

A

aldosterone

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24
Q

what steroid stimulates the body to repair itself following stress, inflammation or injury

A

cortisol

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25
Q

the important organ that lies behind the stomach.

A

pancreas

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26
Q

Small clusters of cells that are scattered throughout the pancreas;

A

islets of Langerhans

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27
Q

what hormone stimulates the liver and muscles to remove glucose from the blood

A

insulin

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28
Q

what stimulates the liver to convert glycogen into glucose and release it into the bloodstream

A

glucagon

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29
Q

the reproductive glands

A

gonads

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30
Q

what gland that regulates sleep

A

pineal gland

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31
Q

what hormone triggers sleepiness

A

melatonin

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32
Q

The physical and chemical breakdown of complex nutrients into simpler, water-soluble substances the body can use

A

digestion

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33
Q

the study of the digestive system

A

gastroenterology

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34
Q

the part of the tooth that we see

A

crown

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35
Q

the hardest substance in the body

A

enamel

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36
Q

bonelike tissue that forms the main part of the tooth

A

dentin

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37
Q

the hollow center of the tooth

A

pulp

38
Q

a thin bonelike covering over the root, helps hold the tooth firmly in its socket

A

cementum

39
Q

the layer of tissue that produces cementum

A

periodontal membrane

40
Q

the tissue surrounding the teeth

A

gingiva

41
Q

a muscular organ that forms the softened food into a ball and then pushes it to the back of your mouth

A

tongue

42
Q

a small muscular flap of tissue suspended at the back of your mouth

A

uvula

43
Q

a small flap of cartilage closes over the top of the trachea

A

epiglottis

44
Q

protein molecules designed to activate or speed up chemical reactions in your body

A

enzymes

45
Q

the digestive glands in the oral cavity one pair under the tongue

A

salivary glands

46
Q

a digestive juice containing water, mucus, and a digestive enzyme

A

saliva

47
Q

a muscular tube that connects the pharynx to the stomach

A

esophagus

48
Q

the wave-like contractions that force food through the esophagus and the rest of the digestive tract

A

peristalsis

49
Q

a muscular saclike organ, has the largest diameter of any section of the gastroinstentinal tract

A

stomach

50
Q

a mixture of hydrochloric acid, digestive enzymes, and mucus

A

gastric juice

51
Q

the muscular contractions also mix the food particles with gastric juice to change the food into a thick liquid

A

chyme

52
Q

what membrane lining the stomach walls is coated with mucus to protect the stomach from digestive enzymes and the corrosive action of the acid

A

mucous membrane

53
Q

the longest part of the digestive tract

A

small intestine

54
Q

the first 10 inches of the small intestine

A

duodenum

55
Q

the wall of the small intestine is lined with a mucous membrane and millions of tiny, hairlike projections giving the inner surface a velvety appearance

A

villi

56
Q

the movement of water, digested food and other dissolved substances into the bloodstream

A

absorption

57
Q

the middle section of the small intestine

A

jejunum

58
Q

the longest part of the small, into the colon

A

ileum

59
Q

larger in diameter than the small intestine but much shorter

A

large intestine or colon

60
Q

a fingerlike projection that has no known function in digestion

A

appendix

61
Q

the watery chyme then becomes semisolid waste materials

A

feces

62
Q

the last few inches of the digestive tract

A

rectum

63
Q

what produces pancreatic juice which contains enzymes for digesting fats, carbohydrates, and proteins

A

pancreas

64
Q

the largest internal organ of the body

A

liver

65
Q

a digestive juice essential for breaking down fats and oils

A

bile

66
Q

nutrients that provide energy

A

carbohydrates

67
Q

nutrients that provide raw materials to build tissues

A

proteins

68
Q

nutrients that provide energy and raw materials to build tissues

A

fats

69
Q

nutrients that is necessary for growth and body functions

A

vitamins

70
Q

nutrients that regulate body functions and provides materials for bone and teeth construction and muscle contraction

A

minerals

71
Q

nutrients that provide a medium for chemical reactions and transport of materials

A

water

72
Q

Carbohydrates should provide over what percent of your total daily calories

A

45% - 65%

73
Q

a fatlike substance that can accumulate in blood vessels and restrict blood flow

A

cholesterol

74
Q

proteins are made of long chains of building blocks

A

amino acids

75
Q

proteins that lack one or more of the essential amino acids

A

incomplete proteins

76
Q

proteins should supply about ________ of your total calories

A

10%-30%

77
Q

a fatlike substance that are totally insoluble in water

A

lipids

78
Q

fatty acids that makes fats solid at room temperature

A

saturated

79
Q

fatty acids that makes fats liquid at room temperature

A

unsaturated

80
Q

if the fat molecule lacks only one pair of hydrogen atoms it is said to be

A

monounsaturated

81
Q

if the fat molecule lacks two or more hydrogen atoms pair it is said to be

A

polyunsaturated

82
Q

the two essential fatty acids in the human diet

A

linoleic acid and alpha-linoleic acid

83
Q

a buildup of plaque inside blood vessels

A

atherosclerosis

84
Q

high blood pressure

A

hypertension

85
Q

Fats and other lipids are transported through the bloodstream in “packages” of fats and protein

A

lipoproteins

86
Q

fats should supply about ________ of your total calories

A

25% - 35%

87
Q

substances that neutralize harmful molecules also called as free radicals

A

antioxidants

88
Q

disease caused by a lack of some substance in the diet

A

deficiency disease

89
Q

a vital to energy production

A

Magnesium

90
Q

minerals that become electrically charged when dissolved in fluids, including body fluids

A

electrocytes