1.2.1 - 1.2.2 Test Review

What is a sarcomere?

• A type of connective tissue in the body.
• The repeating basic unit of muscle contraction in striated muscle.

• A protein that helps in blood clotting.
• The smallest unit of bone structure.

Which of the following surrounds the individual myofiber or muscle cell?

• Epimysium
• Endomysium
• Perimysium
• Fascia

Tags

NGSS.MS-LS1-2

Which of the following are composed of myosin?

• thin filaments

• Collagen fibers
• thick filaments

• z discs

The sliding filament model of contraction involves

• the shortening of thick filaments so that thin filaments slide past

• the Z discs sliding over the myofilaments

• actin and myosin shortening, but no moving past each other

• actin and myosin sliding past each other

Which of the following muscles flexes the elbow?

• Triceps brachii
• Deltoid
• Pectoralis major
• Biceps brachii

Which of the following is not a way to name muscles?

• strength

• shape

• action

• location

The bundle of connective tissue at the end of a skeletal muscle that attaches the muscle to bone is called a(n)

• tendon
• fascia
• cartilage
• ligament

Which of the following muscle types is not striated and is involuntary?

• Smooth muscle
• Cardiac muscle
• Skeletal muscle
• Voluntary muscle

The insertion point of a muscle is usually the point of attachment 

• on the moveable bone

• on the stationary bone

• on the joint

• on the opposing bone

According to the muscle rules, muscles must have at least 2 attachments and cross

• at least 1 joint.

• Muscles do not need any attachments to function.
• cross multiple joints.

• no joints.