Muscle Histology

What is the name of the Thick filaments?

• Actin
• Myosin
• Myoglobin
• Titan

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

The A-band is represented by the number

• 2
• 5
• 6
• 7

The I band is represented by the number

• 4
• 5
• 6
• 7

The Z line is represented by the number

• 1

• 2

• 3

• 4

The H-Zone is represented by the number

• 1
• 2
• 3
• 4

There are repeating units along a myofibril.

These are the basic structural and functional unit of skeletal muscle.

What are these units called?

• sarcomeres

• myofibrils

• synapses

• troponins

Function of a sarcomere

• Made up of myofilaments

• The basic contractile unit of muscle contraction

• An organelle

• An organ

The part of the sarcomere that C (Blue) refers to is the...

• Actin

• Myosin

• Troponin

• Tropomyosin