Physio EX Exercise:The Muscular System:Skeletal Muscle Tissue
The Muscular System: Skeletal Muscle Tissue
1.
Fill in the characteristics of the three muscle types:
Muscle Type
Cardiac
Shape of cell
Skeletal
branching chains of cells single, long cylindrical
# of nuclei
15 um in diamter, small
Striations
yes, has myofibrils and
sarcomers
Control
involuntary
100 um in size, big
Smooth single, spindle shape cells
2-10 in diameter, medium
yes, presences of myofibrilsno presence of myofibrils and sarcomeres voluntary involuntary
2.
tendons
What attaches muscles to bone? _____________________.
3.
The whole muscle is composed of muscle cells (fibers) grouped in bundles called ______________. fascicles 4.
Name the connective tissue coverings surrounding the following:
Whole muscle __________________ epimysium perimysium
Fascicles __________________ endomysium Muscle cell __________________
5.
Match the following three terms with their definitions:
2
Sarcolemma
Sarcoplasmic reticulum
Cytosol
6.
- endoplasmic reticulum in muscle cell
3
- intracellular fluid around organelles
- plasma membrane of muscle cell
1
Match the following three terms with their definitions:
Terminal cisternae
3
- T-tubule + 2 terminal cisternae
T-tubules 2
Triad 1
7.
- part of sarcolemma—carries action potential
- part of sarcoplasmic reticulum—stores calcium ions
Myofibrils consist of contractile proteins called ___________________. microfilaments Name the two types and what they’re composed of:
_______________
thin filaments
composed of ___________________ protien actin
protien myosin thick filaments
_______________ composed of ___________________
8.
Arrangement of myofilaments. Give the letter name of each band:
Dark band → A band
___
I
Light band → ___ band
Match two definitions with each band:
I
- contains only thin filaments
A contains
I-
defined by length of thick filament
A defined
9.
1.
Fill in the characteristics of the three muscle types:
Muscle Type
Cardiac
Shape of cell
Skeletal
branching chains of cells single, long cylindrical
# of nuclei
15 um in diamter, small
Striations
yes, has myofibrils and
sarcomers
Control
involuntary
100 um in size, big
Smooth single, spindle shape cells
2-10 in diameter, medium
yes, presences of myofibrilsno presence of myofibrils and sarcomeres voluntary involuntary
2.
tendons
What attaches muscles to bone? _____________________.
3.
The whole muscle is composed of muscle cells (fibers) grouped in bundles called ______________. fascicles 4.
Name the connective tissue coverings surrounding the following:
Whole muscle __________________ epimysium perimysium
Fascicles __________________ endomysium Muscle cell __________________
5.
Match the following three terms with their definitions:
2
Sarcolemma
Sarcoplasmic reticulum
Cytosol
6.
- endoplasmic reticulum in muscle cell
3
- intracellular fluid around organelles
- plasma membrane of muscle cell
1
Match the following three terms with their definitions:
Terminal cisternae
3
- T-tubule + 2 terminal cisternae
T-tubules 2
Triad 1
7.
- part of sarcolemma—carries action potential
- part of sarcoplasmic reticulum—stores calcium ions
Myofibrils consist of contractile proteins called ___________________. microfilaments Name the two types and what they’re composed of:
_______________
thin filaments
composed of ___________________ protien actin
protien myosin thick filaments
_______________ composed of ___________________
8.
Arrangement of myofilaments. Give the letter name of each band:
Dark band → A band
___
I
Light band → ___ band
Match two definitions with each band:
I
- contains only thin filaments
A contains
I-
defined by length of thick filament
A defined
9.