Lesson 2 Flashcards

1
Q

cell structure

A
  • nucleus
  • mitochondria
  • chromosomes
  • DNA
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2
Q

characteristics of living things

A
  • metabolism
  • growth
  • reproduction
  • irritability
  • self generated motion
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3
Q

basic unit of human life

A

cell

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4
Q
  • group of cells that have a common function
  • five basic types of tissue with subordinate groups within each type
  • categorized by differing amounts and kinds of intercellular material and different shapes of cells
A

tissues

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5
Q

tissues are categorized by

A

differing amounts and kinds of intercellular material and different shapes of cells

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6
Q

elementary tissues

A
  • Epithelial
  • connective
  • muscle
  • nervous
  • vascular
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7
Q

sheets of cells resting on a collagen-based membranous surface

A

epithelial tissue

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8
Q

where is epithelial tissue at?

A
  • skin
  • glandular
  • lining of body cavities
  • cilia
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9
Q

bind and support various structures in the body. mostly intercellular matrix of various kinds within which are the cells

A

connective tissue

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10
Q

mix of white and yellow fibers

A

areolar and adipose

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11
Q

white fibers

A

tendons (tight)

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12
Q

yellow fibers

A

ligaments (loose)

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13
Q

connect muscles to other muscles, to bones or to cartliages

A

tendons

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14
Q

tendon that connects to itself

A

aponeurosis

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15
Q

connects bone to cone, cartilage to cartilage, or bone to cartilage

A

ligaments

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16
Q
  • part of the skeletal system

- withstands great pressure, but tears easily

A

cartilage (chondro)

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17
Q

types of cartilage

A
  • hyaline
  • elastic
  • fibrocartilage
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18
Q

milky white; forms structures like larynx and trachea; collagen fibers in its intercellular matrix; may “ossify” or harden over time

A

hyaline

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19
Q

yellowish; elastic fibers; forms pinna, nose, epiglottis

A

elastic

20
Q

surfaces between the vertebrae and surfaces of the temporo-mandibular joint

A

fibro-cartilage

21
Q
  • main portion of skeletal system
  • strong, rigid
  • intercellular matrix largely inorganic salts
A

bone (os)

22
Q

connections between bones and bones, cartilages and cartilages, and bones and cartilages

A

joints (arthro)

23
Q

types of joints

A
  • syntarthroidial
  • amphiarthroidial
  • diarthroidial
24
Q

between bones of cranium; fibrous or immovable

A

syntarthroidial

25
Q

allow moderate flexion between bones; flexible; vertebrae and spinal column

A

amphiarthroidial

26
Q

allow movement between bones or cartilages; movable or synovial; elbow, laryngeal cartilages

A

diarthroidial

27
Q

types of vascular tissue

A
  • blood

- lymph

28
Q
  • brings nutrients to the cells of the body
  • carries bi-products of metabolism away from the cells of the body
  • matrix = plasma
  • blood cells (red and white)
A

blood

29
Q
  • defense against disease

- has its own circulatory system

A

lymph

30
Q
  • tissues that provides movement in the body
A

muscles (myo, mylo, sarco)

31
Q

types of muscle

A
  • striated
  • smooth
  • cardiac
32
Q

voluntary, somatic, skeletal; we control to effect movement; running, chewing, articulating speech; contract = shorter

A

striated muscle

33
Q

involuntary and visceral; forms many internal organs over which we do not have voluntary control; esophagus, intestines; squeezing, milking action

A

smooth muscle

34
Q

characteristics of straited and smooth muscle; forms the heart

A

cardiac muscle

35
Q

the amount of contraction present even when a muscle is not being actively used

A

tone

36
Q

low muscle tone

A

hypotonia

37
Q

excessive tone

A

hypetonic

38
Q

muscle attachments

A
  • origin
  • insertion
  • course
39
Q

the more fixed end of the muscle

A

origin

40
Q

the end of the muscle that moves the most

A

insertion

41
Q

the direction in which the muscle lies

A

course

42
Q

how to name conventions

A
  • by origin and insertion
  • by function
  • by location
43
Q

the cells comprising the brain, spinal cord, and peripheral nerves

A

neurons

44
Q

respond to external stimuli and send bioelectrical signals to the brain through a chain of _______________

A

afferent neurons

45
Q

carry bioelectrical signals from the brain to other parts of the body through a chain of __________ (send the signals that make muscles move)

A

efferent neurons

46
Q

collections of tissues that work together in functional unity

A

organs and tissue aggregates