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Questions and Answers
Which type of muscle tissue is responsible for locomotion?
Which type of muscle tissue is responsible for locomotion?
- Epithelial
- Skeletal (correct)
- Smooth
- Cardiac
Cardiac muscle is primarily involved in maintaining blood pressure.
Cardiac muscle is primarily involved in maintaining blood pressure.
False (B)
What is the primary function of smooth muscle?
What is the primary function of smooth muscle?
Propels substances through organs and maintains pressure
The term 'SCS' is a mnemonic for which muscle tissue types? ______, ______, and ______
The term 'SCS' is a mnemonic for which muscle tissue types? ______, ______, and ______
Match each muscle tissue type with its corresponding activation mechanism:
Match each muscle tissue type with its corresponding activation mechanism:
Which muscle tissue type is characterized by long, striated fibers?
Which muscle tissue type is characterized by long, striated fibers?
Cardiac muscle cells are spindle-shaped and non-striated.
Cardiac muscle cells are spindle-shaped and non-striated.
What is the main structural difference between skeletal and cardiac muscle tissue?
What is the main structural difference between skeletal and cardiac muscle tissue?
Smooth muscle tissue is located in the walls of ______ and ______.
Smooth muscle tissue is located in the walls of ______ and ______.
Match each muscle tissue type with its primary location in the body:
Match each muscle tissue type with its primary location in the body:
Which of the following is a characteristic shared by both skeletal and smooth muscle cells regarding their shape?
Which of the following is a characteristic shared by both skeletal and smooth muscle cells regarding their shape?
Cardiac muscle cells are less striated compared to skeletal muscle cells.
Cardiac muscle cells are less striated compared to skeletal muscle cells.
On what two myofilaments does the contraction basis of all muscle tissue depend?
On what two myofilaments does the contraction basis of all muscle tissue depend?
The muscle cell plasma membrane is also known as the ______.
The muscle cell plasma membrane is also known as the ______.
Match the following muscle terminology with their definitions:
Match the following muscle terminology with their definitions:
What does the prefix 'Myo-' or 'Mys-' generally refer to in the context of muscle terminology?
What does the prefix 'Myo-' or 'Mys-' generally refer to in the context of muscle terminology?
The term sarcoplasmic reticulum refers to a specialized type of endoplasmic reticulum found in muscle cells.
The term sarcoplasmic reticulum refers to a specialized type of endoplasmic reticulum found in muscle cells.
Describe the sliding filament mechanism during muscle contraction
Describe the sliding filament mechanism during muscle contraction
The term 'FAM' is a mnemonic of muscle features, ______, Actin/Myosin, Muscle terms.
The term 'FAM' is a mnemonic of muscle features, ______, Actin/Myosin, Muscle terms.
Match the following muscle characteristics (functional) to their correct definition:
Match the following muscle characteristics (functional) to their correct definition:
Which of the following characteristics allows muscle tissue to respond to nerve signals?
Which of the following characteristics allows muscle tissue to respond to nerve signals?
Elasticity refers to the ability of muscle tissue to be stretched beyond its resting length.
Elasticity refers to the ability of muscle tissue to be stretched beyond its resting length.
Define the term 'contractility' in the context of muscle tissue.
Define the term 'contractility' in the context of muscle tissue.
The ability of muscle tissue to be stretched or extended is known as ______.
The ability of muscle tissue to be stretched or extended is known as ______.
Connect the following muscle functions with their respective muscle tissue types:
Connect the following muscle functions with their respective muscle tissue types:
Which type of muscle tissue primarily courses blood through the body?
Which type of muscle tissue primarily courses blood through the body?
Skeletal muscle is primarily responsible for maintaining posture and stabilizing joints.
Skeletal muscle is primarily responsible for maintaining posture and stabilizing joints.
What is the role of skeletal muscles in generating heat?
What is the role of skeletal muscles in generating heat?
Cardiac muscle carries out ______
Cardiac muscle carries out ______
Match the following muscle tissue functions with the type that typically performs that role:
Match the following muscle tissue functions with the type that typically performs that role:
Which of the following is a crucial component supplied by arteries to muscle tissue for energy production?
Which of the following is a crucial component supplied by arteries to muscle tissue for energy production?
Veins in muscle tissue primarily deliver oxygen and nutrients to muscle fibers.
Veins in muscle tissue primarily deliver oxygen and nutrients to muscle fibers.
Why is a continuous blood supply crucial for muscle function?
Why is a continuous blood supply crucial for muscle function?
A muscle generally has ______ nerve, ______ artery and ______ or more veins.
A muscle generally has ______ nerve, ______ artery and ______ or more veins.
Match the roles of the following components in the life line trio for muscle function:
Match the roles of the following components in the life line trio for muscle function:
What is the mnemonic for nerve, artery and veins lifeline?
What is the mnemonic for nerve, artery and veins lifeline?
Nerve signals trigger blood flow
Nerve signals trigger blood flow
Which waste products do veins in the muscle tissue remove?
Which waste products do veins in the muscle tissue remove?
Nerve, Artery and Veins are a strict lifeline ______ for skeletal muscles.
Nerve, Artery and Veins are a strict lifeline ______ for skeletal muscles.
Match the following with their roles in muscle fiber:
Match the following with their roles in muscle fiber:
Which of the following is the most accurate comparison of the functional characteristics of muscle tissue?
Which of the following is the most accurate comparison of the functional characteristics of muscle tissue?
Smooth muscle's primary role is locomotion, similar to skeletal muscle.
Smooth muscle's primary role is locomotion, similar to skeletal muscle.
Explain the relationship between a muscle's nerve supply, blood supply, and its ability to function effectively.
Explain the relationship between a muscle's nerve supply, blood supply, and its ability to function effectively.
The ability of muscle tissue to stretch or extend beyond its resting length is known as ______.
The ability of muscle tissue to stretch or extend beyond its resting length is known as ______.
Match the following muscle types with their respective functions:
Match the following muscle types with their respective functions:
Flashcards
Muscle Tissue Definition
Muscle Tissue Definition
Muscle tissue is specialized for movement, consisting of three types: skeletal, cardiac, and smooth.
Skeletal Muscle
Skeletal Muscle
Long, striated fibers attached to bones; responsible for locomotion.
Cardiac Muscle
Cardiac Muscle
Branched, striated fibers forming the heart; pumps blood involuntarily.
Smooth Muscle
Smooth Muscle
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Skeletal Muscle Activation
Skeletal Muscle Activation
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Cardiac Muscle Activation
Cardiac Muscle Activation
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Smooth Muscle Activation
Smooth Muscle Activation
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Muscle Shape
Muscle Shape
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Contraction Basis
Contraction Basis
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Sarcolemma
Sarcolemma
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Sarcoplasm
Sarcoplasm
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Muscle Prefixes
Muscle Prefixes
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Excitability (Irritability)
Excitability (Irritability)
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Contractility
Contractility
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Extensibility
Extensibility
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Elasticity
Elasticity
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Skeletal Muscle Function
Skeletal Muscle Function
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Cardiac Muscle Function
Cardiac Muscle Function
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Smooth Muscle Function
Smooth Muscle Function
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Additional Muscle Roles
Additional Muscle Roles
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Muscle Supply
Muscle Supply
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Nerve Role
Nerve Role
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Blood Role
Blood Role
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Study Notes
Cardiovascular System
Functions
- Pumping blood throughout the body is a key function.
- Oxygen, carbon dioxide, nutrients, hormones, and waste products are transported.
- The system protects against disease.
- Body temperature, fluid pH, and the water content of cells are regulated.
Components
- The muscular pump, the heart, is a component of the system.
- Arteries carry blood away from the heart.
- Veins carry blood toward the heart.
- Capillaries facilitate nutrient/waste exchange between blood and cells.
- Blood is a fluid connective tissue.
Blood Vessels
- Arteries have thick, elastic walls.
- Arteries transport blood under high pressure.
- Arteries branch into smaller arterioles.
- Arterioles constrict or dilate, regulating blood pressure/flow.
- Capillaries are microscopic vessels with thin, porous walls.
- Capillaries enable material exchange between blood and cells.
- Venules are small vessels that collect blood from capillaries.
- Veins have thinner, less elastic walls than arteries.
- Veins transport blood under low pressure.
- Valves in veins prevent backflow.
The Heart
- The heart is a hollow, muscular organ, about the size of a fist.
- It is located in the thoracic cavity between the lungs.
- Myocardium is the cardiac muscle tissue the heart consists of.
- The pericardium is a double-layered membrane that surrounds the heart.
- The endocardium is the inner lining of the heart.
Heart Chambers
- Two atria are the upper heart chambers which receive returning blood.
- The right atrium receives deoxygenated blood from the body.
- The left atrium receives oxygenated blood from the lungs.
- The two ventricles are the lower heart chambers that pump blood out.
- The right ventricle pumps deoxygenated blood to the lungs.
- The left ventricle pumps oxygenated blood to the body.
Heart Valves
- Atrioventricular (AV) valves are between atria and ventricles.
- AV valves prevent backflow into the atria during ventricle contraction.
- The right AV valve is the tricuspid valve.
- The left AV valve is the bicuspid (mitral) valve.
- Semilunar valves are located between ventricles and major arteries.
- Semilunar valves prevent backflow into the ventricles, as they relax.
- The pulmonary valve is between the right ventricle and pulmonary artery.
- The aortic valve is between the left ventricle and the aorta.
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