AP06 Vocab Quiz

Muscle composed of cylindrical multinucleate cells with obvious striations.

• skeletal muscle
• insertion
• sarcomere
• actin
• neurotransmitter

The end of a muscle that is attached to the bone that does not move during muscular contraction.

• origin
• myofibrils
• myosin
• motor neurons
• neuromuscular junction

The end of a muscle attached to the bone that moves when the muscle contracts.

• insertion
• sarcomere
• actin
• neurotransmitter
• sarcoplasmic reticulum

Any of the elongated contractile threads found in striated muscle cells.

• myofibrils
• myosin
• motor neurons
• neuromuscular junction
• sliding filament mechanism

The smallest contractile unit of a muscle myofibril.

• sarcomere
• actin
• neurotransmitter
• sarcoplasmic reticulum
• oxygen debt

One of the principal contractile proteins found in muscle that works with actin.

• myosin
• motor neurons
• neuromuscular junction
• sliding filament mechanism
• fatigue

A contractile protein of muscle that works along with myosin to product movement.

• actin
• neurotransmitter
• sarcoplasmic reticulum
• oxygen debt
• motor unit

A neuron in the peripheral nervous system that conducts nerve impulses from the central nervous system to body tissues and organs.

• motor neurons
• neuromuscular junction
• sliding filament mechanism
• fatigue
• muscle tension

A chemical released by a neuron that may stimulate or inhibit other neurons or effector cells.

• neurotransmitter
• sarcoplasmic reticulum
• oxygen debt
• motor unit
• all-or-none principle

Region where a motor neuron comes in close contact with a muscle cell.

• neuromuscular junction
• sliding filament mechanism
• fatigue
• muscle tension
• twitch