Introduction to Human Biology Flashcards

1
Q

Define the term ‘anatomy’

A

The science related to the study of the structure of biological organisms

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2
Q

Define the term ‘physiology’

A

The science related to the study of the functions of cells, tissue organs and organisms

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3
Q

Define the term ‘pathology’

A

The science of the causes and effects of a disease

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4
Q

Define the term ‘pathophysiology’

A

The science of how a disease effects the functions of cells, tissue organs in an organism

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5
Q

List the 10 life processes in the human body

A
  • Movement
  • Responsiveness
  • Growth
  • Reproduction
  • Respiration
  • Digestion
  • Absorption
  • Circulation
  • Assimilation
  • Excretion
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6
Q

Define ‘Metabolism’

A

A set of chemical reactios in the body required to maintain life

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7
Q

Define ‘Hyperplasia’

A

Enlargement of organ or tissue due to increase in cell reproduction rate

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8
Q

Define ‘Hypertrophy’

A

Enlargement of an organ or tissue from the increase in size of its cells.

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9
Q

Define ‘accretion’

A

The growing together or adherence of parts that are normally separate

Substances deposited outside cells

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10
Q

Define ‘atrophy’

A

The wasting away of organs or tissue as a result of the degeneration of cells

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11
Q

Define ‘necrosis’

A

The death of cells in an organ or tissue due to disease, injury or failure of blood supply

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12
Q

Define ‘apoptosis’

A

The death of cell as normal development (controlled suicide)

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13
Q

What are the levels of organisation in the human body?

A
  • Chemical level
  • Cellular Levels
  • Tissue level
  • Organ level
  • System level
  • Organismal level
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14
Q

List the major body cavities

A
  • Cranial
  • Vertebral Canal
  • Thoracic Cavity
  • Abdominal Cavity
  • Pelvic Cavity
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15
Q

What are the essential functions of body cavities?

A
  • To cushion internal organs and protect them from trauma

- To add flexibility for organ movement

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16
Q

What is Homeostasis?

A

The process of which the body maintains a stable internal environment

17
Q

What is a collection of similar cells and their component parts that performs specialized functions?

A

Tissue

18
Q

What happens when bodily function is able to ensure the homeostatic environment?

A

Health Occurs

19
Q

How does illness occur?

A

When effectors fail to respond to directions from the control centre Correct

20
Q

Which part of the brain is the body’s thermoregulatory centre?

A

Hypothalamus

21
Q

What happens when there is decrease in the body’s temperature set point?

A
  • Skin blood vessels constrict

- Hairs become raised

22
Q

Controlled cell suicide is known as

A

Apoptosis

23
Q

Which organ separates the thoracic cavity from the abdominopelvic cavity

A

The diaphram

24
Q

Which membrane lines the thoracic cavity and surrounding the lungs?

A

Pleura

25
Q

What is the function of endocrine glands?

A

To secrete Hormones into the bloodstream

26
Q

Give an example of an exocrne gland secretion

A

Digestive juices

27
Q

Which plane divide the body into anterior and posterior portion?

A

Coronal Plane

28
Q

Which plane divides the body into left and right portions?

A

Sagittal plane

29
Q

What is hyperkalemia?

A

when someone has high levels of potassium in the bood

30
Q

What is hypernatremia?

A

when someone has high levels of sodium in the blood

31
Q

Which side of the cell membrane is negative/positive?

A

Inside negative, outside positive

32
Q

Which ion is of the highest abundance outside the cell?

A

Sodium ions (and Chloride ions)

33
Q

Which ion is of the highest abundance inside the cell?

A

Potassium ions (and phosphate ions)

34
Q

What effect does hyponatremia have on cells?

A

It would cause the cells to swell and possibly rupture

35
Q

What effect does hypernatremia have on cells?

A

It would draw out water inside the cell due to the high osmotic pressure outside the cell