Unit 2 Support and Motion Exam Review

Front

What are the bone cells that maintain bone tissue?

Back

Osteocytes.

Front

What organelle do muscle fibers have in abundance to provide energy?

Back

Mitochondrion.

Front

What are the two types of protein filaments found in myofibrils?

Back

Actin and myosin.

Front

What is the connective tissue that surrounds fascicles called?

Back

Perimysium.

Front

What is the thinner filament made up of three types of protein?

Back

Actin.

Front

What is the primary function of osteocytes in bone tissue?

Back

To maintain and regulate bone tissue.

Front

How do mitochondria contribute to muscle function?

Back

They produce ATP, which provides energy for muscle contractions.

Front

What role do actin and myosin play in muscle contraction?

Back

They interact to facilitate muscle contraction through the sliding filament theory.

Front

What is the structure of a fascicle in muscle tissue?

Back

A fascicle is a bundle of muscle fibers surrounded by perimysium.

Front

What are the three types of proteins that make up actin filaments?

Back

G-actin, tropomyosin, and troponin.