BIO 230 QUIZ 2 QUESTIONS AND
ANSWERS
One of the most commonly dislocated joints - ANSWER-Shoulder
Cardiac Muscle - ANSWER-Involuntary, smooth muscle tissue found only in the
heart.
Smooth Muscle - ANSWER-Involuntary muscle found in the digestive tract, blood
vessels, bladder, airways, and uterus. Nonstriated (not striped).
Skeletal Muscle - ANSWER-Voluntary muscle attached to bones. Cause the body to
move. Striated, it looks markedly striped.
Muscle Fiber - ANSWER-A muscle cell, especially one of the skeletal muscle cells
(cylindrical, composed of many myofibrils that contract when stimulated).
Fascicles - ANSWER-A bundle of muscle fibers.
Perimysium - ANSWER-Connective tissue surrounding a fascicle.
Epimysium - ANSWER-Fibrous sheath that surrounds the whole muscle (fascicles
and perimysium) and bind the fibers together.
Fascia - ANSWER-Surrounds the entire muscle (including the epimysium) (deep and
superficial).
Structure of a muscle fiber - ANSWER-Long, cylindrical cells with many nuclei and a
plasma membrane.
Actin (structure and function) - ANSWER-Protein found in thin myofilaments.
Myosin - ANSWER-A protein found in thick myofilaments.
Tropomin and tropomyosin - ANSWER-Two proteins twined in with Actin (one of the
other proteins).
Soma - ANSWER-cell body
Dendrites - ANSWER-The branchlike parts of a neuron that are specialized to
receive information from other cells.
Axon - ANSWER-A threadlike extension of a neuron that carries nerve impulses
away from the cell to other cells.
Multipolar neurons - ANSWER-One axon and multiple dendrites. Most common type
of neuron, found most in the brain and spinal chord.
ANSWERS
One of the most commonly dislocated joints - ANSWER-Shoulder
Cardiac Muscle - ANSWER-Involuntary, smooth muscle tissue found only in the
heart.
Smooth Muscle - ANSWER-Involuntary muscle found in the digestive tract, blood
vessels, bladder, airways, and uterus. Nonstriated (not striped).
Skeletal Muscle - ANSWER-Voluntary muscle attached to bones. Cause the body to
move. Striated, it looks markedly striped.
Muscle Fiber - ANSWER-A muscle cell, especially one of the skeletal muscle cells
(cylindrical, composed of many myofibrils that contract when stimulated).
Fascicles - ANSWER-A bundle of muscle fibers.
Perimysium - ANSWER-Connective tissue surrounding a fascicle.
Epimysium - ANSWER-Fibrous sheath that surrounds the whole muscle (fascicles
and perimysium) and bind the fibers together.
Fascia - ANSWER-Surrounds the entire muscle (including the epimysium) (deep and
superficial).
Structure of a muscle fiber - ANSWER-Long, cylindrical cells with many nuclei and a
plasma membrane.
Actin (structure and function) - ANSWER-Protein found in thin myofilaments.
Myosin - ANSWER-A protein found in thick myofilaments.
Tropomin and tropomyosin - ANSWER-Two proteins twined in with Actin (one of the
other proteins).
Soma - ANSWER-cell body
Dendrites - ANSWER-The branchlike parts of a neuron that are specialized to
receive information from other cells.
Axon - ANSWER-A threadlike extension of a neuron that carries nerve impulses
away from the cell to other cells.
Multipolar neurons - ANSWER-One axon and multiple dendrites. Most common type
of neuron, found most in the brain and spinal chord.
