BIOS 252 Final Exam Review Questions with
Verified Correct Answers
What are the three types of muscle tissue?
Skeletal, Cardiac, and Smooth
What are characteristics of skeletal muscle?
Striated, voluntary, multinucleated, somatic nervous system control
What are characteristics of smooth muscle?
Non-striated, involuntary, uninucleated, autonomic nervous control
What are characteristics of cardiac muscle?
Striated, branching, uninucleated, involuntary, autonomic nervous control, intercalated discs
(gap junctions)
What is the thick filament?
Myosin
What is the thin filament?
Actin
What are mediating proteins of muscle tissue?
Troponin and Tropomyosin
What does Calcium bind to?
Troponin
Where does Calcium come from?
, Sarcoplasmic Reticulum
When Calcium binds to Troponin, what happens?
There is a confirmational change wherein Troponin moves Tropomyosin away so that
Myosin can bind to Actin
What are characteristics of all muscles?
Electrical excitability, extensibility, elasticity, contractility
What are the three meninges from outer to inner, including spaces?
Dura Mater, Arachnoid Mater, Subarachnoid Space (where CSF is found), Pia Mater (directly
attached to spinal cord and brain)
What is the filum terminale?
An extension of the Pia Mater which attaches the spinal cord to coccygeal segment
What is an isometric contraction?
Length of muscle does not change, but tension does
What is an isotonic contraction?
Length of muscle changes, but tension does not
What is a concentric isotonic contraction?
Muscle shortens
What is an eccentric isotonic contraction?
Muscle lengthens
What is an agonist?
Verified Correct Answers
What are the three types of muscle tissue?
Skeletal, Cardiac, and Smooth
What are characteristics of skeletal muscle?
Striated, voluntary, multinucleated, somatic nervous system control
What are characteristics of smooth muscle?
Non-striated, involuntary, uninucleated, autonomic nervous control
What are characteristics of cardiac muscle?
Striated, branching, uninucleated, involuntary, autonomic nervous control, intercalated discs
(gap junctions)
What is the thick filament?
Myosin
What is the thin filament?
Actin
What are mediating proteins of muscle tissue?
Troponin and Tropomyosin
What does Calcium bind to?
Troponin
Where does Calcium come from?
, Sarcoplasmic Reticulum
When Calcium binds to Troponin, what happens?
There is a confirmational change wherein Troponin moves Tropomyosin away so that
Myosin can bind to Actin
What are characteristics of all muscles?
Electrical excitability, extensibility, elasticity, contractility
What are the three meninges from outer to inner, including spaces?
Dura Mater, Arachnoid Mater, Subarachnoid Space (where CSF is found), Pia Mater (directly
attached to spinal cord and brain)
What is the filum terminale?
An extension of the Pia Mater which attaches the spinal cord to coccygeal segment
What is an isometric contraction?
Length of muscle does not change, but tension does
What is an isotonic contraction?
Length of muscle changes, but tension does not
What is a concentric isotonic contraction?
Muscle shortens
What is an eccentric isotonic contraction?
Muscle lengthens
What is an agonist?
