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STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found...

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STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE
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Page 1: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE

Page 2: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Introductory Questions

Where is skeletal muscle found in your body?

Attached to bone.

(Smooth muscle lines organs, and cardiac muscle is found in the heart.)

What is the function of skeletal muscle?

Voluntary movement

Stability (posture)

Communication (facial expression, speech)

Control of body openings

Heat production- 85% of body heat is generated by muscles providing the proper environment for enzymes and therefore metabolism

Page 3: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Word Parts/Meanings

Fascia- band or bundle

Epi-upon

Peri- around

Endo- inner

Mys- muscle

Sarco-flesh

Lemma- husk

Page 4: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.
Page 5: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Structures of a skeletal muscle fiber

Page 6: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

A Sarcomere

Page 7: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Twizzler analogy

Many packages of Twizzlers = Fascicle

Find a Fascicle on your diagram.

Page 8: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Twizzler analogy 2

1 package of

Twizzlers =

Muscle fiber

The packaging =

Sarcolemma

Page 9: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Twizzler analogy 3

1 bundle of twizzlers =

myofibril

Page 10: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Twizzler analogy 4

1 Twizzler strand =

Filament

Page 11: STRUCTURES ASSOCIATED WITH A SKELETAL MUSCLE. Introductory Questions Where is skeletal muscle found in your body? Attached to bone. (Smooth muscle lines.

Compare the Muscle Fiber to Pull and Peel Twizzlers

How amazing is that?


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