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A&P Vocab First Semester > Chapter 7-9 > Flashcards

Chapter 7-9 Flashcards

1
Q

Acetylcholine

A
  • a compound that occurs throughout the nervous system
  • functions as a neurotransmitter
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2
Q

Acetylcholinesterase

A
  • an enzyme that causes rapid hydrolysis of acetylcholine.
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3
Q

Amphiarthroses

A
  • A type of articulation
  • permits limited motion
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4
Q

Anaerobic threshold

A
  • Point at which muscle metabolism converts to anaerobic
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5
Q

Bursae

A
  • Sacs lined with synovial membrane
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6
Q

Calcium ions

A
  • Ca2+ binds to and activates calmodulin that triggers for muscle contraction
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7
Q

Calmodulin

A
  • a protein that binds calcium
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8
Q

Caveolae

A
  • Pouchlike infoldings of sarcolemma
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9
Q

Diarthroses

A
  • freely movable joints
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10
Q

Dystrophin

A
  • Links thin filaments to proteins of sarcolemma
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11
Q

Femur

A
  • Largest and strongest bone in the body
  • Length ~ ¼ of person’s height
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12
Q

Gomphosis

A
  • a form of immovable articulation
  • a peg-like part fits into a cavity
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13
Q

Humerus

A

Articulates superiorly with glenoid cavity of scapula and inferiorly with radius and ulna

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14
Q

Hypertrophy

A
  • increase in fiber size
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15
Q

Isotonic

A
  • muscle shortens because muscle tension exceeds load
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16
Q

Muscle fatigue

A
  • Physiological inability to contract despite continued stimulation
17
Q

Myoblasts

A
  • All muscle tissue develops from myoblasts
18
Q

Suture

A
  • line of junction or an immovable joint between two bones
19
Q

Synarthroses

A
  • immovable joints
20
Q

Synovial (joints)

A
  • Bones separated by fluid-filled joint cavity
21
Q

Ulna

A
  • Forms major portion of elbow joint with humerus
22
Q

Unitary

A
  • Single-unit smooth muscles have numerous gap junctions (electrical synapses) between adjacent cells that weld them together electrically; they thus behave as a single unit
23
Q

Varicosities

A
  • Varicosities (bulbous swellings) of nerve fibers store and release neurotransmitters into diffuse junctions
24
Q

What is “A”?

A

Z disc

25
Q

What is “B”?

A

H zone

26
Q

What is “C”?

A

I band

27
Q

What is “D”?

A

A band

28
Q

What is “E”?

A

M line

29
Q

What is “A”?

A

Periosteum

30
Q

What is “B”?

A

Joint Cavity contains synovial fluid

31
Q

What is “C”?

A

Articular (hyaline) Cartilage

32
Q

What is “D”?

A

Fibrous capsule

33
Q

What is “E”?

A

Synovial membrane

34
Q

What is “A”?

A

Epimysium

35
Q

What is “B”?

A

Endomysium (between fibers)

36
Q

What is “C”?

A

Muscle fiber (cell)

37
Q

What is “D”?

A

Fascicle (wrapped by perimysium

38
Q

What is “E”?

A

Perimysium

A&P Vocab First Semester (5 decks)

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