KINE 433 Exam 2 2025 update |comprehensive
questions and verified answers (complete solutions)
ASSURED SUCCESS|GRADE A+!!
what type(s) of muscle are controlled by the autonomic nervous system? -
(ANSWER)smooth and cardiac muscle
what type(s) of muscle are controlled by the central nervous system? -
(ANSWER)skeletal muscle
what connects muscle to bone? - (ANSWER)tendons
what is the connective tissue that surrounds the entire muscle? -
(ANSWER)epimysium
what is the connective tissue that surrounds an individual muscle fiber? -
(ANSWER)endomysium
what is the connective tissue that surrounds a bundle of muscle fibers? -
(ANSWER)perimysium
what is a bunch of muscle fibers called? - (ANSWER)fasciculus
what is the diameter range of a skeletal muscle fiber? - (ANSWER)10-120
micrometers
, VERY BIG! Human hair is 150 micrometers in diameter
what are two unique traits about muscle fibers? - (ANSWER)1. they are much
larger than most cells
2. they are multi-nucleated and have many more nuclei than other cells
what part of the muscle cell produces ATP? - (ANSWER)mitochondria
what is the contractile element of a muscle cell composed of thick and thin fibers?
- (ANSWER)myofibril
what is the membrane surrounding a muscle fiber that conducts action
potentials? - (ANSWER)plasmalemma
what is the intracellular fluid containing glycogen and myoglobin called in a
muscle cell? - (ANSWER)sarcoplasm (cytoplasm)
what is the main storage unit for Ca++ in a muscle cell? - (ANSWER)sarcoplasmic
reticulum
what is muscle contraction dependent on? - (ANSWER)Ca++
what are the extensions of the plasmalemma that transmit action potentials to
individual fibers called? - (ANSWER)transverse tubules
questions and verified answers (complete solutions)
ASSURED SUCCESS|GRADE A+!!
what type(s) of muscle are controlled by the autonomic nervous system? -
(ANSWER)smooth and cardiac muscle
what type(s) of muscle are controlled by the central nervous system? -
(ANSWER)skeletal muscle
what connects muscle to bone? - (ANSWER)tendons
what is the connective tissue that surrounds the entire muscle? -
(ANSWER)epimysium
what is the connective tissue that surrounds an individual muscle fiber? -
(ANSWER)endomysium
what is the connective tissue that surrounds a bundle of muscle fibers? -
(ANSWER)perimysium
what is a bunch of muscle fibers called? - (ANSWER)fasciculus
what is the diameter range of a skeletal muscle fiber? - (ANSWER)10-120
micrometers
, VERY BIG! Human hair is 150 micrometers in diameter
what are two unique traits about muscle fibers? - (ANSWER)1. they are much
larger than most cells
2. they are multi-nucleated and have many more nuclei than other cells
what part of the muscle cell produces ATP? - (ANSWER)mitochondria
what is the contractile element of a muscle cell composed of thick and thin fibers?
- (ANSWER)myofibril
what is the membrane surrounding a muscle fiber that conducts action
potentials? - (ANSWER)plasmalemma
what is the intracellular fluid containing glycogen and myoglobin called in a
muscle cell? - (ANSWER)sarcoplasm (cytoplasm)
what is the main storage unit for Ca++ in a muscle cell? - (ANSWER)sarcoplasmic
reticulum
what is muscle contraction dependent on? - (ANSWER)Ca++
what are the extensions of the plasmalemma that transmit action potentials to
individual fibers called? - (ANSWER)transverse tubules
