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21 fall: histology > lab 2 muscle > Flashcards

lab 2 muscle Flashcards

1
Q

Three types of muscle

A

skeletal, cardiac, smooth

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2
Q

The skeletal and cardiac muscle have been stained with ____ in order to emphasize the ____

A

phosphotungstic acid
banding pattern

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3
Q

Skeletal muscle cells are ____
Where are the nuclei located within the cell?

A

multinucleate
outside of cell

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4
Q

Compare the striations with those of skeletal muscle. Are they the same?

A

not really

both striated but cardiac muscles can be branched forming angles, intercalated discs transfer electrical impulses

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5
Q

cardiac muscle cells are ____and have a ___ nucleus.

A

branched

single, centrally located

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6
Q

What is the name of the things in between cardiac cells

A

intercalated discs

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7
Q

Smooth Muscle is____shaped and contains ____ nucleus.

A

spindled
one centrally located

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8
Q

Smooth muscle tissue is often bordered by ___ which is rich in ___

A

connective tissue
collagen

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9
Q

Difference between smooth muscle and connective tissue

A

Collagen is markedly eosinophilic (pink because it stains with eosin) and has a refractile/shiny quality.

Smooth muscle appears dull in comparison and its eosinophilia is tarnished by a slight purplish haze.

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10
Q

cardiac muscle

A
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11
Q

cardiac muscle

A
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12
Q
A

Skeletal Muscle Tongue

  1. Skeletal muscle in cross-section
  2. Skeletal muscle in longitudinal section
    *Note cross-striations
  3. Skeletal muscle nuclei
    *Note nuclei at periphery of cell
  4. Capillary
    *Note nuclei at periphery of blood vessel
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13
Q
A

Skeletal Muscle Tongue

  1. Skeletal muscle in longitudinal section
    *Note cross-striations
  2. Skeletal muscle in cross-section
  3. Skeletal muscle nuclei
    *Note nuclei at periphery of cell
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14
Q
A
  1. Cardiac cell nuclei
    *Note nuclei in center of cell
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15
Q
A

Cardiac Muscle

  1. Cardiac cell nuclei
    *Note nuclei in center of cell
  2. Intercalated discs
  3. Cross-striations
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16
Q
A

Smooth Muscle

  1. Intestinal lumen
  2. Mucosa
  3. Submucosa
  4. Muscularis externa (smooth muscle)
17
Q

Intestine

A
  1. Muscularis externa in longitudinal section
  2. Muscularis externa in cross-section
  3. Smooth muscle cell nuclei
18
Q
A

Stomach

  1. Muscularis mucosae (smooth muscle)
  2. Muscularis externa (smooth muscle)
19
Q
A

Stomach

  1. Muscularis externa (smooth muscle)
    1a. Inner circular layer in longitudinal section
    1b. Outer longitudinal layer in cross-section
  2. Smooth muscle cell nuclei
  3. Space artifact
20
Q
A

Smooth Muscle Jejunum

  1. Mucosa
  2. Submucosa
  3. Muscularis externa
    3a. Inner circular layer in longitudinal section

3b. Outer longitudinal layer in cross-section

21
Q
A

Smooth Muscle, jejunum

  1. Muscularis externa, inner circular layer in longitudinal section
  2. Muscularis externa, outer longitudinal layer in cross-section
  3. Smooth muscle cell nuclei
22
Q

what kind of muscle

A

Cardiac

skeletal

Smooth

23
Q

what kind of muscle

A

skeletal

24
Q

what kind of muscle?

A

smooth

spindle shape

central nucleus

no stiations

25
Q
A

tongue

Skeletal Muscle

cross section

longitudinal view

nucleus at edge of cell

striated

multinucleated

26
Q

what kind of muscle?

A

skeletal

striated

multinucleated

nucleus at edge of cell

tounge with vallate papilla

27
Q

what is circled

A

intercalated disc of cardiac muscle

striated

one nucleus

branched

28
Q

name the areas from left to right

A
29
Q

what kind of muscle

A

cardiac

striated

intercalated discs

one central nucleus

branched

30
Q

make up of cardiac muscle

A
31
Q

make up of skeletal muscle

A

21 fall: histology (36 decks)

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