Muscular

25問 • 1年前

Nathan

通報

問題一覧

What is a sarcomere?

Unit within a myofibril

What Are the Major Proteins Forming the Myofibrils Of Skeletal Muscle Cells?

Actin and myosin

What Structures Form a Motor Unit?

One motor neuron and several muscle fibers

By What Means Does an Electrical Impulse Travel Deep Into a Skeletal Muscle Fiber in Order to Trigger a Contraction?

Via transverse tubules

How Is Creatine Phosphate Used By Muscle Cells?

It is used to regenerate ATP.

What Binds to Actin at Its Binding Sites, Allowing the Formation Of Cross-Bridges?

Myosin

The Characteristic Reddish Color Of Skeletal Muscle Is Due to the Presence Of What Substance?

Myoglobin

What Is a Threshold Stimulus?

Minimum strength of stimulus required to cause muscle fiber contraction to occur

What Term Refers to the Increase in the Number Of Motor Units Activated As a Result Of More Intense Stimulation?

Recruitment

Compared to Skeletal Muscle, Smooth Muscle Contracts __________ and Relaxes __________.

more slowly; more slowly

What Term Refers to the Attachment Point For the Movable End Of the Muscle?

Insertion

What Term Describes the Muscle That Is Primarily Responsible for Opposing a Particular Action?

Antagonist

Layers Of Dense Connective Tissue Called __________ Separate And Support Individual Muscles.

Fascia

What are Fascicles?

Bundles of muscle fibers

What Is an Alternate Name For a Skeletal Muscle Cell?

Muscle fiber

What Is the Main Component Of Thin Filaments?

Actin

What Structure Within a Skeletal Muscle Cell Extends From Z Line to Z Line?

Sarcomere

What Is the Name Of the Functional Connection Between a Motor Neuron And a Muscle Cell?

Neuromuscular junction

Motor Neurons Communicate With Muscle Cells By Releasing Chemicals Called ____________.

neurotransmitters

When Acetylcholine Binds to Its Receptors At the Motor End Plate, the Muscle Fiber Membrane Becomes More Permeable to __________.

Sodium

What Is the Effect Of an Increased Concentration Of Calcium Ion In the Sarcoplasm?

Actin binding sites become exposed.

What Molecule, Only Present In Muscle Cells, Is Used to Temporarily Store Oxygen For Use In Aerobic Respiration?

Myoglobin

The Connective Tissue Covering That Separates a Muscle Into Fascicles Is Called the __________.

perimysium

What Is the Effect Of ATP Binding to Myosin?

Cross-bridges break

In Skeletal Muscle Fibers, What Is the Source Of the Calcium Ions That Are Released Into the Sarcoplasm to Bind With Troponin, Resulting In Contraction?

Sarcoplasmic reticulum

Skeletal

Skeletal

Nervous

Nervous

endocrine

endocrine

Blood

Blood

Cardiovascular

Cardiovascular

問題一覧

What is a sarcomere?

Unit within a myofibril

What Are the Major Proteins Forming the Myofibrils Of Skeletal Muscle Cells?

Actin and myosin

What Structures Form a Motor Unit?

One motor neuron and several muscle fibers

By What Means Does an Electrical Impulse Travel Deep Into a Skeletal Muscle Fiber in Order to Trigger a Contraction?

Via transverse tubules

How Is Creatine Phosphate Used By Muscle Cells?

It is used to regenerate ATP.

What Binds to Actin at Its Binding Sites, Allowing the Formation Of Cross-Bridges?

Myosin

The Characteristic Reddish Color Of Skeletal Muscle Is Due to the Presence Of What Substance?

Myoglobin

What Is a Threshold Stimulus?

Minimum strength of stimulus required to cause muscle fiber contraction to occur

What Term Refers to the Increase in the Number Of Motor Units Activated As a Result Of More Intense Stimulation?

Recruitment

Compared to Skeletal Muscle, Smooth Muscle Contracts __________ and Relaxes __________.

more slowly; more slowly

What Term Refers to the Attachment Point For the Movable End Of the Muscle?

Insertion

What Term Describes the Muscle That Is Primarily Responsible for Opposing a Particular Action?

Antagonist

Layers Of Dense Connective Tissue Called __________ Separate And Support Individual Muscles.

Fascia

What are Fascicles?

Bundles of muscle fibers

What Is an Alternate Name For a Skeletal Muscle Cell?

Muscle fiber

What Is the Main Component Of Thin Filaments?

Actin

What Structure Within a Skeletal Muscle Cell Extends From Z Line to Z Line?

Sarcomere

What Is the Name Of the Functional Connection Between a Motor Neuron And a Muscle Cell?

Neuromuscular junction

Motor Neurons Communicate With Muscle Cells By Releasing Chemicals Called ____________.

neurotransmitters

When Acetylcholine Binds to Its Receptors At the Motor End Plate, the Muscle Fiber Membrane Becomes More Permeable to __________.

Sodium

What Is the Effect Of an Increased Concentration Of Calcium Ion In the Sarcoplasm?

Actin binding sites become exposed.

What Molecule, Only Present In Muscle Cells, Is Used to Temporarily Store Oxygen For Use In Aerobic Respiration?

Myoglobin

The Connective Tissue Covering That Separates a Muscle Into Fascicles Is Called the __________.

perimysium

What Is the Effect Of ATP Binding to Myosin?

Cross-bridges break

In Skeletal Muscle Fibers, What Is the Source Of the Calcium Ions That Are Released Into the Sarcoplasm to Bind With Troponin, Resulting In Contraction?

Sarcoplasmic reticulum