Chp 9 Anat

Front 1

What are the 4 basic properties of all muscle tissue (skeletal, cardiac, and smooth)?

Back 1

- excitability
- contractility
- extensibility
-elasticity

Front 2

What are the 4 basic properties of all muscle tissue (skeletal, cardiac, and smooth)?

Back 2

- excitability
- contractility
- extensibility
-elasticity

Front 3

What are the 5 basic functions of skeletal muscle?

Back 3

movement( skeletal)
posture (maintain)
support (soft tissues eg abdomnen)
regulate flow (sphincters)
maintain temperature

Front 4

What are the 5 basic functions of skeletal muscle?

Back 4

movement( skeletal)
posture (maintain)
support (soft tissues eg abdomnen)
regulate flow (sphincters)
maintain temperature

Front 5

What layer of connective tissue surrounds the entire muscle?

Back 5

epimysium

Front 6

What layer of connective tissue divides the muscle into a series of internal compartments containing a bundle of muscle fibers and contains blood vessels and nerves that branch to supply each bundle of fibers?

Back 6

perimysium

Front 7

What layer of connective tissue surrounds the entire muscle?

Back 7

epimysium

Front 8

What layer of connective tissue divides the muscle into a series of internal compartments containing a bundle of muscle fibers and contains blood vessels and nerves that branch to supply each bundle of fibers?

Back 8

perimysium

Front 9

What is the technical term for a bundle of muscle fibers?

Back 9

fascicle

Front 10

What layer of connective tissue surrounds each muscle fiber, binds each fiber to its neighbor, and supports capillaries that supply blood to individual muscle fibers?

Back 10

endomysium

Front 11

What is the technical term for a bundle of muscle fibers?

Back 11

fascicle

Front 12

What layer of connective tissue surrounds each muscle fiber, binds each fiber to its neighbor, and supports capillaries that supply blood to individual muscle fibers?

Back 12

endomysium

Front 13

What do we call a thick cord or cable formed from the convergence of the connective tissue layers of a muscle that bind the muscle to bone, skin, or another muscle?

Back 13

tendon

Front 14

What do we call a thick cord or cable formed from the convergence of the connective tissue layers of a muscle that bind the muscle to bone, skin, or another muscle?

Back 14

tendon

Front 15

What do we call a convergence of connective tissue layers if it takes the form of a flattened sheet rather than a cord/cable?

Back 15

aponeurosis

Front 16

What do we call a convergence of connective tissue layers if it takes the form of a flattened sheet rather than a cord/cable?

Back 16

aponeurosis

Front 17

What do we call the site of chemical communication between a nerve and a skeletal muscle fiber?

Back 17

neuromuscular junction

Front 18

What do we call the site of chemical communication between a nerve and a skeletal muscle fiber?

Back 18

neuromuscular junction

Front 19

What is the technical term for the plasma membrane of a skeletal muscle cell?

Back 19

Sarcolemma

Front 20

What is the technical term for the plasma membrane of a skeletal muscle cell?

Back 20

Sarcolemma

Front 21

What is the name of the deep indentations of the skeletal muscle cell‘s plasma membrane that extend into the cytoplasm and carries electrical impulses that stimulate and coordinate muscle contractions?

Back 21

t-tubules

Front 22

What is the technical term for the structures, composed of bundles of protein filaments, that can shorten are therefore responsible for muscle contraction?

Back 22

myofibrils

Front 23

What is the name of the repeating unit of protein fibers in a myofibril?

Back 23

sarcomere

Front 24

What protein is found in the thick filaments of a myofibril?

Back 24

myosin

Front 25

What protein is found in the thin filaments of a myofibril

Back 25

actin

Front 26

At what region do proteins bind thick filaments at the center of the sarcomere?

Back 26

M-line

Front 27

At what region do proteins bind thin filaments at the ends of the sarcomere?

Back 27

Z-line

Front 28

What region of the sarcomere contains only thick filaments (including the m-line)?

Back 28

H-line

Front 29

What region of the sarcomere contains only thin filaments (continuous between sarcomeres and includes the z-line)?

Back 29

I-band

Front 30

What region of the sarcomere consists of the entire region with thick filaments (both overlapping thick and thin filaments and only thick filaments)?

Back 30

A-band

Front 31

What do we call all of the muscle fibers controlled by a single motor neuron?

Back 31

Motor unit

Front 32

What does the size of the motor unit (# of muscle fibers) tell us?

Back 32

Fewer myofibrils per neuron=
greater control

Front 33

What type of muscle fibers are large in diameter, contain densely packed myofibrils, have large glycogen reserves, have few mitochondria, and are prone to fatigue?

Back 33

fast fibers

Front 34

What type of muscle fibers are smaller in diameter, have an extensive capillary network, contain myoglobin (stores oxygen), and have many mitochondria?

Back 34

slow fibers

Front 35

What do we call the attachment site of a muscle that (generally) remains stationary?

Back 35

origin

Front 36

What do we call the attachment site of a muscle that moves during contraction?

Back 36

Insertion

Front 37

What do we call a muscle whose contraction is mostly responsible for producing a movement?

Back 37

Agonist
Prime mover

Front 38

What do we call a muscle that assists the primary muscle in performing a movement?

Back 38

Synergist

Front 39

What do we call a muscle whose actions oppose those of another muscle?

Back 39

Antagonist