Kin 223 Exam 4 Midterm Test Questions
With Complete Solutions.
The characteristic of muscle that allows it to be passively stretched is - Answer extensibility.
Which are possible functions of skeletal muscles? - Answer Maintenance of posture.b: Both highly
coordinated and localized simple movements.c: Temperature regulation.d: Support of certain body
organs.e: Regulation of the movement of material through certain body tracts.
One feature that helps provide fast energy to a muscle cell is the presence of granules containing the
complex carbohydrate - Answer glycogen.
nvaginations of the muscle cell membrane that extend deep into the cell are known as the - Answer T-
tubules.
A motor unit consists of - Answer a single motor neuron and the multiple muscle fibers it controls.
Which letter is associated with the light band and contains thin filaments only? - Answer I
The multiple nuclei in skeletal muscle cells are the result of the - Answer fusion of myoblasts.
For relaxation to occur, - Answer sarcoplasm calcium levels fall, calcium is removed from troponin, and
tropomyosin blocks binding sites on actin.
Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle
cell and thereby initiates the steps of contraction? - Answer Acetylcholine
An end plate potential is an event that involves a gain of - Answer positive charge along the inside of
the cell membrane, as sodium rapidly enters.
Glycolysis is an - Answer anaerobic process that occurs in the cytosol.
With Complete Solutions.
The characteristic of muscle that allows it to be passively stretched is - Answer extensibility.
Which are possible functions of skeletal muscles? - Answer Maintenance of posture.b: Both highly
coordinated and localized simple movements.c: Temperature regulation.d: Support of certain body
organs.e: Regulation of the movement of material through certain body tracts.
One feature that helps provide fast energy to a muscle cell is the presence of granules containing the
complex carbohydrate - Answer glycogen.
nvaginations of the muscle cell membrane that extend deep into the cell are known as the - Answer T-
tubules.
A motor unit consists of - Answer a single motor neuron and the multiple muscle fibers it controls.
Which letter is associated with the light band and contains thin filaments only? - Answer I
The multiple nuclei in skeletal muscle cells are the result of the - Answer fusion of myoblasts.
For relaxation to occur, - Answer sarcoplasm calcium levels fall, calcium is removed from troponin, and
tropomyosin blocks binding sites on actin.
Which is the neurotransmitter that causes the release of calcium ions from reservoirs within the muscle
cell and thereby initiates the steps of contraction? - Answer Acetylcholine
An end plate potential is an event that involves a gain of - Answer positive charge along the inside of
the cell membrane, as sodium rapidly enters.
Glycolysis is an - Answer anaerobic process that occurs in the cytosol.
