BIOL 348 CHAPTER 6 MUSCLES EXAM
QUESTIONS AND 100% APPROVED
CORRECT ANSWERS GRADED A+ 2025
FIRST CLASS PASS
2025 EXAM
A
+
,PDF: GRADED A EXAM
BIOL 348 CHAPTER 6 MUSCLES EXAM
QUESTIONS AND 100% APPROVED
CORRECT ANSWERS GRADED A+ 2025
FIRST CLASS PASS
Muscle tissues - CORRECT ANSWERSkeletal
Cardiac
Smooth
Striated muscle fibers - CORRECT ANSWERSkeletal and Cardiac
Involuntary muscle fibers - CORRECT ANSWERCardiac and smooth
Cardiac muscle - CORRECT ANSWEROnly found in the heart
One nucleus
Striated and have intercalated discs
Intercalated Discs - CORRECT ANSWERJoin cell membranes of adjacent cardiocytes (gap
junctions, desmosomes)
Link heart cells mechanically, chemically, and electrically
Smooth muscle in Body systems - CORRECT ANSWERForms around other tissues
In integumentary system: Arrector pili for goose bumps
In Blood vessels and airways: Regulates blood pressure and airflow
In reproductive and glandular systems: Produces movements
In digestive and urinary systems: Sphincters and movement
Structural characteristics of smooth muscle tissue - CORRECT ANSWERNonstriated tissue
Characteristics of Smooth muscle cells - CORRECT ANSWERLong, slender, and spindle
shaped.
Have a single, central nucleus
no T tubules, myofibrils, or sarcomeres
Have no tendons or aponeuroses
have scattered myosin fibers
Myosin fibers have more heads per thick filament
Have thin filaments attached to dense bodies
2
, PDF: GRADED A EXAM
Skeletal muscle - CORRECT ANSWERMuscle tissue (muscle cells = fibers)
Connective tissues
Nerves
Blood vessels
Functions of skeletal muscle tissue - CORRECT ANSWER1. Produce skeletal movement
2. Maintain posture and body position
3. Support soft tissues
4. Guard entrances and exits
5. Maintain body temperature
6. Store nutrient reserves
Three layers of connective tissues - CORRECT ANSWER1. Epimysium
2. Perimysium
3. Endomysium
Connected to each other and sarcolemma
- Transmit force
- Converge to tendon
Epimysium - CORRECT ANSWERSurrounds entire muscle
Perimysium - CORRECT ANSWERSurrounds Fascicles (bundles of fibers)
Endomysium - CORRECT ANSWERSurrounds individual fibers
Skeletal Muscle Fibers - CORRECT ANSWERLong and multinucleate
Develop through fusion of myoblasts
Sarcolemma - CORRECT ANSWERCell membrane of a muscle fiber
- Propagate action potential
Transverse tubules ( T tubules) - CORRECT ANSWERTransmit AP through fiber
Sarcoplasm - CORRECT ANSWERCytoplasm of fiber
Sarcoplasmic reticulum - CORRECT ANSWERmembranous structure surrounding each
myofibril
Terminal cisternae - CORRECT ANSWERattach sarcoplasmic reticulum to T tubules
- Concentrate Ca2+
Myofibrils are made up of what? - CORRECT ANSWERMyofilaments
Myofilaments - CORRECT ANSWERBundles of protein filaments responsible for contraction
Thick and thin filaments
3
QUESTIONS AND 100% APPROVED
CORRECT ANSWERS GRADED A+ 2025
FIRST CLASS PASS
2025 EXAM
A
+
,PDF: GRADED A EXAM
BIOL 348 CHAPTER 6 MUSCLES EXAM
QUESTIONS AND 100% APPROVED
CORRECT ANSWERS GRADED A+ 2025
FIRST CLASS PASS
Muscle tissues - CORRECT ANSWERSkeletal
Cardiac
Smooth
Striated muscle fibers - CORRECT ANSWERSkeletal and Cardiac
Involuntary muscle fibers - CORRECT ANSWERCardiac and smooth
Cardiac muscle - CORRECT ANSWEROnly found in the heart
One nucleus
Striated and have intercalated discs
Intercalated Discs - CORRECT ANSWERJoin cell membranes of adjacent cardiocytes (gap
junctions, desmosomes)
Link heart cells mechanically, chemically, and electrically
Smooth muscle in Body systems - CORRECT ANSWERForms around other tissues
In integumentary system: Arrector pili for goose bumps
In Blood vessels and airways: Regulates blood pressure and airflow
In reproductive and glandular systems: Produces movements
In digestive and urinary systems: Sphincters and movement
Structural characteristics of smooth muscle tissue - CORRECT ANSWERNonstriated tissue
Characteristics of Smooth muscle cells - CORRECT ANSWERLong, slender, and spindle
shaped.
Have a single, central nucleus
no T tubules, myofibrils, or sarcomeres
Have no tendons or aponeuroses
have scattered myosin fibers
Myosin fibers have more heads per thick filament
Have thin filaments attached to dense bodies
2
, PDF: GRADED A EXAM
Skeletal muscle - CORRECT ANSWERMuscle tissue (muscle cells = fibers)
Connective tissues
Nerves
Blood vessels
Functions of skeletal muscle tissue - CORRECT ANSWER1. Produce skeletal movement
2. Maintain posture and body position
3. Support soft tissues
4. Guard entrances and exits
5. Maintain body temperature
6. Store nutrient reserves
Three layers of connective tissues - CORRECT ANSWER1. Epimysium
2. Perimysium
3. Endomysium
Connected to each other and sarcolemma
- Transmit force
- Converge to tendon
Epimysium - CORRECT ANSWERSurrounds entire muscle
Perimysium - CORRECT ANSWERSurrounds Fascicles (bundles of fibers)
Endomysium - CORRECT ANSWERSurrounds individual fibers
Skeletal Muscle Fibers - CORRECT ANSWERLong and multinucleate
Develop through fusion of myoblasts
Sarcolemma - CORRECT ANSWERCell membrane of a muscle fiber
- Propagate action potential
Transverse tubules ( T tubules) - CORRECT ANSWERTransmit AP through fiber
Sarcoplasm - CORRECT ANSWERCytoplasm of fiber
Sarcoplasmic reticulum - CORRECT ANSWERmembranous structure surrounding each
myofibril
Terminal cisternae - CORRECT ANSWERattach sarcoplasmic reticulum to T tubules
- Concentrate Ca2+
Myofibrils are made up of what? - CORRECT ANSWERMyofilaments
Myofilaments - CORRECT ANSWERBundles of protein filaments responsible for contraction
Thick and thin filaments
3
