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PMP 101 > Human Body Systems > Flashcards

Human Body Systems Flashcards

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1
Q

What are the main types of tissue?

A

Connective tissue
Epithelial tissue
Muscle tissue
Neural tissue

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2
Q

What are connective tissue?

A

Bonds cell and organs
Protects support and integration

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3
Q

What are epithelial tissue?

A

Covers exterior, lines internal cavities and some glands

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4
Q

What are muscle tissue?

A

Excitable contracts: skeletal, smooth, cardiac

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5
Q

What are neural tissue?

A

Excitable : allows propagation of nerve impulses that communicate between different parts of the body

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6
Q

What are the two types of tissue support?

A

Extracellular matrix
Cellular junctions

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7
Q

What is the extra cellular matrix?

A

Material synthesised and secreted by the cells of a tissue
Very abundant in connective tissue

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8
Q

What are cellular junctions?

A

Hold cells together
Cell adhesion molecules (CAM’s)

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9
Q

What are the use of the epithelia?

A

Protect/regulate exchange

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10
Q

How do epithelia allow exchange?

A

Simple, thin flattened cells, gaps /pores
Rapid gas exchange
Blood vessels

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11
Q

How do epithelia support transporting?

A

Simple, cuboidal or columnar
Actively regulate

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12
Q

What are the properties of epithelia?

A

Ciliated - sweeps fluid across surface
Protective- prevent exchange
Secretory- glands

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13
Q

What are the three types of connective tissue?

A

True connective
Supportive connective
Fluid connective

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14
Q

What are the two types of true connective tissue?

A

Loose- adipose and reticular
Dense- regular and irregular

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15
Q

What are the two types of supportive connective tissue?

A

Cartilage
Bones

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16
Q

What are the two types of fluid connective tissue?

A

Blood
Lymph

17
Q

What is the meaning of homeostasis?

A

Physiologically, keeping the body’s environment in a state of equilibrium within ‘normal limits’

18
Q

What is the meaning of negative feedback?

A

Negative feedback brings a system back to its level of normal functioning

19
Q

How does the negative feedback loop work?

A

Regulated variables maintained within their acceptable range by physiological control mechanisms

20
Q

How does the regulation of homeostasis work?

A

Oscillations around a set point
Detectors have a threshold

21
Q

What is the meaning of positive feedback loop?

A

Enhances or accelerates output created by an activated stimulus

22
Q

How does positive feed back loop work?

A

Reinforces a change in a controlled condition
Continues until interupted

23
Q

What is the meaning of afferent?

A

Towards the centre

24
Q

What is the meaning of efferent?

A

Away from the centre

25
Q

What is the integration centre?

A

Brain

PMP 101 (28 decks)

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