BYU Cell 220 Exam 2 Newest / BYU Cell 220 Exam 2
Preparation/BYU Cell 220 Exam 2 Practice Exam With
Complete Questions And Correct Answers| Brand New
Version!
What are the three types of muscle tissue? - ans -Skeletal, Cardiac, and Smooth
What are the properties of muscle tissue? - ans -Excitability, Contractility,
Elasticity, and Extensability
Where is cardiac muscle found? - ans -The Myocardium of the Heart
What are the Characteristics of Cardiac Muscle? - ans -Branches Fibers, 1 or 2
nuclei, Intercalated discs, Striations, auto-rhythmic, Involuntary
Where is smooth muscle found? - ans -Walls of visceral organs
What are the characteristics of smooth muscle? - ans -Fusiform shape, 1 nucleus,
no striations, involuntary, fatigue-resistant
What are the characteristics of skeletal muscle? - ans -Large, Cylindrical, many
nuclei, striated, voluntary, vascular, innervated at neuromuscular junctions,
formed from fusion of myoblasts
What are the functions of skeletal muscle? - ans -Movement, posture
maintenance, temperature regulation, storage of materials (amino acids and
glycogen), movement of materials, support abdominal organs, joint stabilization
The endomysium wraps... - ans -Muscle fibers
The perimysium wraps... - ans -Fascicles
The epimysium wraps... - ans -Entire muscles
Deep fascia wraps... - ans -Muscle groups
,What is the order of skeletal muscle organization from smallest to largest? - ans -
Myosin/Actin proteins, thick/thin filaments, myofibril, myofiber, fascicle, muscle,
muscle group
Collagen fibers of endomysium, perimysium, and epimysium are __________ with
tendons - ans -Continuous
What wraps a muscle fiber? - ans -The Sarcolemma
Tendons connect muscles to... - ans -Bones or skin
An aponeurosis is a... - ans -Flat tendon
Testosterone makes muscle fibers... - ans -Wider and thicker
Where is skeletal muscle found? - ans -Connected to the skeleton
What does actin do? - ans -Contracts muscle (acts)
What does myosin do? - ans -Binds to ATP
How do z lines move? - ans -Closer together. In toward M line.
What do troponin and tropomyosin do to aid muscle movement? - ans -Make a
complex allowing actin to slide
Actin is a _____ filament - ans -Thin
Myosin is the _________ filament - ans -Thick
M lines are - ans -Anchors, immobile
Action potential occurs at the... - ans -Neuromuscular junction
The Terminal Cisternae... - ans -Hold nutrients (mostly calcium)
, What is the process of muscle contraction? - ans -1. An action potential arrives at
the neuromuscular junction. 2. ACh is released, binds to receptors, and opens
sodium ion channels. 3. Action potential travels along the t-tubules. 4. Calcium
reacts with the troponin/tropomyosin complex, affecting actin first. 5. Actin
twists, Myosin slides. 6. The muscle shortens and produces tension.
What is the process of muscle relaxation? - ans -1. Calcium is reabsorbed (ATP is
required), triggered by a lack of excitability. 2. Interaction between thick and thin
filaments relax. 3. Muscles lengthen and relax.
What is a parallel fascicle arrangement? - ans -Fibers run parallel to the long axis
of the muscle (Ex: Rectus abdominis)
What is a circular fascicle arrangement? - ans -Fibers form concentric rings (Ex:
Orbicularis oculi)
What is a convergent fascicle arrangement? - ans -The origin of the muscle is
broad, and the fascicles converge toward the insertion (Ex: Pectoralis major)
What does pennate mean? - ans -Means feathered. The fascicles are obliquely
attached to the tendon. There are three types.
What is a bipennate arrangement? - ans -There are two angles of pennation,
usually towards a center point (Ex: Rectus Femoris)
What is a unipennate arrangement? - ans -There is only one angle of pennation
(Ex: Extensor digitorum)
What is a multipennate arrangement? - ans -A muscle with multiple angles of
pennation. (Ex: Deltoid)
Muscles can be named after... - ans -Actions (Ex: Supinator, Plexor pollicis longus),
Regions of the Body (Ex: Rectus femoris), Attachments (Ex: Sternocleidomastoid),
Orientations (External obliques), Shapes (Ex: Quadratus femoris), Sizes (Ex:
Gluteus Maximus), or the number of heads (Ex: Triceps brachii).
What is the origin of a muscle? - ans -The less mobile attachment site
Preparation/BYU Cell 220 Exam 2 Practice Exam With
Complete Questions And Correct Answers| Brand New
Version!
What are the three types of muscle tissue? - ans -Skeletal, Cardiac, and Smooth
What are the properties of muscle tissue? - ans -Excitability, Contractility,
Elasticity, and Extensability
Where is cardiac muscle found? - ans -The Myocardium of the Heart
What are the Characteristics of Cardiac Muscle? - ans -Branches Fibers, 1 or 2
nuclei, Intercalated discs, Striations, auto-rhythmic, Involuntary
Where is smooth muscle found? - ans -Walls of visceral organs
What are the characteristics of smooth muscle? - ans -Fusiform shape, 1 nucleus,
no striations, involuntary, fatigue-resistant
What are the characteristics of skeletal muscle? - ans -Large, Cylindrical, many
nuclei, striated, voluntary, vascular, innervated at neuromuscular junctions,
formed from fusion of myoblasts
What are the functions of skeletal muscle? - ans -Movement, posture
maintenance, temperature regulation, storage of materials (amino acids and
glycogen), movement of materials, support abdominal organs, joint stabilization
The endomysium wraps... - ans -Muscle fibers
The perimysium wraps... - ans -Fascicles
The epimysium wraps... - ans -Entire muscles
Deep fascia wraps... - ans -Muscle groups
,What is the order of skeletal muscle organization from smallest to largest? - ans -
Myosin/Actin proteins, thick/thin filaments, myofibril, myofiber, fascicle, muscle,
muscle group
Collagen fibers of endomysium, perimysium, and epimysium are __________ with
tendons - ans -Continuous
What wraps a muscle fiber? - ans -The Sarcolemma
Tendons connect muscles to... - ans -Bones or skin
An aponeurosis is a... - ans -Flat tendon
Testosterone makes muscle fibers... - ans -Wider and thicker
Where is skeletal muscle found? - ans -Connected to the skeleton
What does actin do? - ans -Contracts muscle (acts)
What does myosin do? - ans -Binds to ATP
How do z lines move? - ans -Closer together. In toward M line.
What do troponin and tropomyosin do to aid muscle movement? - ans -Make a
complex allowing actin to slide
Actin is a _____ filament - ans -Thin
Myosin is the _________ filament - ans -Thick
M lines are - ans -Anchors, immobile
Action potential occurs at the... - ans -Neuromuscular junction
The Terminal Cisternae... - ans -Hold nutrients (mostly calcium)
, What is the process of muscle contraction? - ans -1. An action potential arrives at
the neuromuscular junction. 2. ACh is released, binds to receptors, and opens
sodium ion channels. 3. Action potential travels along the t-tubules. 4. Calcium
reacts with the troponin/tropomyosin complex, affecting actin first. 5. Actin
twists, Myosin slides. 6. The muscle shortens and produces tension.
What is the process of muscle relaxation? - ans -1. Calcium is reabsorbed (ATP is
required), triggered by a lack of excitability. 2. Interaction between thick and thin
filaments relax. 3. Muscles lengthen and relax.
What is a parallel fascicle arrangement? - ans -Fibers run parallel to the long axis
of the muscle (Ex: Rectus abdominis)
What is a circular fascicle arrangement? - ans -Fibers form concentric rings (Ex:
Orbicularis oculi)
What is a convergent fascicle arrangement? - ans -The origin of the muscle is
broad, and the fascicles converge toward the insertion (Ex: Pectoralis major)
What does pennate mean? - ans -Means feathered. The fascicles are obliquely
attached to the tendon. There are three types.
What is a bipennate arrangement? - ans -There are two angles of pennation,
usually towards a center point (Ex: Rectus Femoris)
What is a unipennate arrangement? - ans -There is only one angle of pennation
(Ex: Extensor digitorum)
What is a multipennate arrangement? - ans -A muscle with multiple angles of
pennation. (Ex: Deltoid)
Muscles can be named after... - ans -Actions (Ex: Supinator, Plexor pollicis longus),
Regions of the Body (Ex: Rectus femoris), Attachments (Ex: Sternocleidomastoid),
Orientations (External obliques), Shapes (Ex: Quadratus femoris), Sizes (Ex:
Gluteus Maximus), or the number of heads (Ex: Triceps brachii).
What is the origin of a muscle? - ans -The less mobile attachment site
