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KIN 260 - HUMAN ANATOMY > Muscle Tissue > Flashcards

Muscle Tissue Flashcards

1
Q

Where can skeletal muscles be found?

A
  • usually attach to bones
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2
Q

Where can cardiac muscle be found?

A
  • wall of the heart
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3
Q

Where can smooth muscle be found?

A
  • walls of hollow internal structures (blood vessels, airways, abdominopelvic organs)
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4
Q

What types of muscles are striated?

A
  • skeletal muscle and cardiac muscle
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5
Q

Which types of muscles are voluntary?

A
  • skeletal tissue (somatic nervous system)
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6
Q

Which muscles are entirely involuntary?

A
  • cardiac muscle and smooth muscle (autonomic nervous system and hormones)
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7
Q

The filaments within each muscle cell are arranged into organized bands called…?

A
  • striations
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8
Q

What is a tendon?

A
  • band of dense connective tissue that attaches a skeletal muscle to a bone
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9
Q

What do tendons typically look like?

A
  • cord-like, but occasionally broad/flat (aponeurosis)
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10
Q

What is a fascia?

A
  • dense sheet of connective tissue that lines the body wall
  • supports skeletal muscles and internal organs
  • fascia separates each region into compartments whose muscles tend to have similar actions and innervation
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11
Q

What are retinacula?

A
  • are thickened bands of fascia that help keep tendons anchored down
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12
Q

What are the three main functions of skeletal muscle?

A
  • movement
  • stabilizes body positions and posture
  • generates heat
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13
Q

What is the “origin” of the muscle?

A
  • the attachment that does not move (proximal attachment)
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14
Q

What is the “insertion” of the muscle?

A

-

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15
Q

Describe the principal action of a flexor.

A
  • decrease joint angle
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16
Q

Describe the principal action of a extensor.

A
  • increases joint angle
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17
Q

Describe the principal action of a abductor.

A
  • moves bone away from midline
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18
Q

Describe the principal action of a adductor.

A
  • moves bone closer to midline
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19
Q

Describe the principal action of a levator.

A
  • raises or elevates body part
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20
Q

Describe the principal action of a depressor.

A
  • lowers of depresses body parts
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21
Q

Describe the principal action of a supinator.

A
  • turn palms anteriorly
22
Q

Describe the principal action of a pronator.

A
  • turns palm posteriorly
23
Q

Describe the principal action of a sphincter.

A
  • decreases size of an opening
24
Q

Describe the principal action of a tensor.

A
  • makes body part rigid
25
Q

Describe the principal action of a rotator.

A
  • rotates bone around longitudinal axis
26
Q

What are the three directional terms?

A
  • rectus, transverse, oblique
27
Q

What does the term rectus mean?

A
  • parallel to midline
28
Q

What does the term transverse mean?

A
  • perpendicular to midline
29
Q

What does the term oblique mean?

A
  • diagonal to midline
30
Q

What does the term maximus mean?

A
  • largest
31
Q

What does the term minimus mean?

A
  • smallest
32
Q

What does the term longus mean?

A
  • long
33
Q

What does the term brevis mean?

A
  • short
34
Q

What does the term latissimus mean?

A
  • widest
35
Q

What does the term longissimus mean?

A
  • longest
36
Q

What does the term magnus mean?

A
  • large
37
Q

What does the term major mean?

A
  • larger
38
Q

What does the term minor mean?

A
  • smaller
39
Q

What does the term vastus mean?

A
  • huge
40
Q

What does the term deltoid mean?

A
  • triangular
41
Q

What does the term trapezius mean?

A
  • trapezoid
42
Q

What does the term serratus mean?

A
  • saw-toothed
43
Q

What does the term rhomboid mean?

A
  • diamond shaped
44
Q

What does the term obicularis mean?

A
  • circular
45
Q

What does the term pectinate mean?

A
  • comblike
46
Q

What does the term piriformis mean?

A
  • pear-shaped
47
Q

What does the term platys mean?

A
  • flat
48
Q

What does the term quadratus mean?

A
  • square, four-sides
49
Q

What does the term gracilis mean?

A
  • slender
50
Q

What are some examples of smooth muscle moving substance around the body?

A
  • blood vessels regulates blood flow to different regions of the body
  • digestive organs moves material through the digestive system
  • urinary organs moves urine through the urinary system
  • sphincters located throughout the body causes the storage of materials

KIN 260 - HUMAN ANATOMY (21 decks)

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