Muscle Tissue and Muscular System

Muscle tissue provides

• support for the body

• movement for the body

• protection for the body

• production of blood cells

A woman is performing a bicep curl, her triceps brachii contracts eccentrically and progressively relaxes to provide a counterforce and produce a smooth elevation of the dumbbell. Which of the following terms best describes the function of the triceps brachii in this motion?

• synergist

• fixator

• agonist

• antagonist

The deltoid shortens to raise the arm into abduction. What type of contraction is this?

• concentric

• eccentric

• isometric

• goncentric

1. A muscle has two rows of fibers on opposite sides of the tendon allowing for greater power but less range of motion. This describes which type of muscle architecture?

• unipennate

• bipennate

• multipennate

• multi-bellied

The glenohumeral joint is made up of which bones?

• clavicle and ulna

• glenoid (of scapula) and ulna

• glenoid (of scapula) and humerus

• humerus and clavicle