Muscular System

Question 1 - Single Best Answer

Identify the tissue:

A) cardiac muscle
B) fibrocartilage
C) tendon
D) skeletal muscle
E) dense irregular connective tissue

Question 2 - Single Best Answer

Identify the tissue:

A) thyroid gland
B) cardiac muscle
C) skeletal muscle
D) smooth muscle
E) salivary gland

Question 3 - Single Best Answer

Identify the region of the sarcomere at the tip of the arrow:

A) I-band
B) M-band
C) A-band
D) H-band
E) Z-disc

Question 4 - Single Best Answer

Identify the cell at the tip of the arrow:

A) smooth muscle cell
B) purkinje fiber
C) fibroblast
D) cardiac muscle cell
E) adipocyte

Question 5 - Single Best Answer

Identify the tissue:

A) smooth muscle
B) peripheral myelinated nerve
C) dense regular connective tissue
D) fibrocartilage

Question 6 - Single Best Answer

Identify the structure at the tip of the arrow:

A) Z-disc
B) intercalated disc
C) sarcomere

Question 7 - Single Best Answer

Identify the tissue:

A) cardiac muscle
B) fibrocartilage
C) skeletal muscle
D) tendon
E) smooth muscle

Question 8 - Single Best Answer

Identify the region of the sarcomere at the tip of the arrow:

A) Z-disc
B) I-band
C) A-band
D) M-band
E) H-band

Question 9 - Single Best Answer

Identify the cell at the tip of the arrow:

A) smooth muscle cell
B) purkinje fiber
C) fibroblast
D) cardiac muscle cell
E) adipocyte

Question 10 - Single Best Answer

• A
• B
• C Using the three pictures above, which type of muscle fiber's contraction is initiated primarily by the autonomic nervous system(ANS)?

A) A
B) B
C) C

Question 11 - Single Best Answer

Which type of muscle fiber is not replaced by scar tissue because it can replicate after damage?

A) skeletal muscle
B) cardiac muscle
C) smooth muscle

Question 12 - Single Best Answer

The most common type of childhood soft tissue sarcoma(cancer or malignant tumor) is rhabdomyosarcoma. Here is a photo. Notice the heterogeneity in cytoplasmic and nuclear size. Notice the abnormal nuclear contents. It is most commonly found in the head and neck region. In a well-differented tumor(a tumor that looks like an overgrowth of normal tissue), what type of muscle fiber do you expect to see?

A) smooth muscle
B) skeletal muscle
C) cardiac muscle