A&P Unit 6 Workbook: Muscular System

What are the three types of muscle tissue found in the human body?

• Cardiac, Skeletal, and Smooth

• Voluntary, Involuntary, and Cardiac

• Striated, Non-striated, and Cardiac

• Fast-twitch, Slow-twitch, and Intermediate

Identify the muscle labeled as "Biceps Brachii" in the diagram.

• Muscle located on the front of the upper arm

• Muscle located on the back of the upper arm

• Muscle located on the front of the thigh

• Muscle located on the back of the thigh

Explain how the structure of a sarcomere contributes to muscle contraction.

• The sarcomere shortens as actin and myosin filaments slide past each other.

• The sarcomere lengthens as actin and myosin filaments separate.

• The sarcomere remains unchanged during contraction.

• The sarcomere rotates to produce contraction.

Which muscle is responsible for the flexion of the forearm at the elbow?

• Triceps Brachii

• Biceps Brachii

• Deltoid

• Pectoralis Major

Describe the process by which ATP is regenerated in muscle cells during prolonged exercise.

• Through glycolysis and oxidative phosphorylation

• By direct phosphorylation of ADP by creatine phosphate

• By anaerobic fermentation

• By the breakdown of fatty acids

Tags

NGSS.MS-LS1-7

What is the function of the deltoid muscle?

• To extend the forearm

• To abduct the arm

• To flex the wrist

• To rotate the neck

Analyze the role of calcium ions in muscle contraction.

• Calcium ions bind to troponin, causing a conformational change that exposes binding sites on actin.

• Calcium ions provide energy for the contraction process.

• Calcium ions are responsible for the depolarization of the muscle cell membrane.

• Calcium ions inhibit the interaction between actin and myosin.

Which of the following muscles is part of the quadriceps group?

• Rectus Femoris

• Biceps Femoris

• Gastrocnemius

• Soleus

What is the primary function of the muscular system?

• To produce hormones

• To facilitate movement

• To protect internal organs

• To store minerals

Which muscle is primarily responsible for the extension of the knee joint?

• Hamstring

• Quadriceps

• Gluteus Maximus

• Sartorius