AEHBY - Musculoskeletal System

Actin:

• The thin filament in a myofibril

• The thick filament in a myofibril

• The muscle Cell

• The distance between two Z bands

Agonist:

• Muscle that has the opposite action to that of the prime mover

• The muscle that produces the desired action

• stabilises the joint to allow for efficient movement

• Pair of muscles that work together to create different movements.

A ___extends from one Z disc to another Z disc.

• Sarcolemma

• Neuromuscular junction

• Sarcomere

• Motor end plate

___are thick filaments.

• actin

• myosin

• troponin

• tropomyosin

The plasma membrane of a skeletal muscle cell is called the:

• sarcomere
• myofilament
• sarcolemma
• sarcoplasm

The functional unit of the muscle cell is the: 

• Sarcomere
• Osteon
• Myofilament
• Muscle fiber

Another name for a muscle cell.

• Fiber
• Sacrolemma
• Sacromere
• Fascicle

Abduction . . .

• movement of a limb away form the bodies midline

• movement of a limb towards the bodies midline

• movement of a limb in a circular motion

• Lengthening of a muscle

Adduction

• movement of a limb away from the midline of the body

• movement towards the midline of the body

• movement of a limb in a circular motion

• contraction and shortening of the muscle

Appendicular skeleton

• Part of the skeleton made up of vertebrae, skull and ribs

• part of the skeleton made up of the limbs, shoulder & pelvis bones