Muscular and Digestive Quiz

The formation of the muscular systems begins in which time of embryonic development?

• fourth month

• first month

• second month

• third month

Axial and limb muscles were derived from ________.

• splanchnic mesoderm

• somatic mesoderm

• intermediate mesoderm

• paraxial mesoderm

A connective tissue that wraps the entire muscle.

• ectomysium

• endomysium

• perymisium

• epimysium

The contractile unit of myofibrils is called ____________.

• hypomere

• sarcomere

• mesomere

• epimere

The jaw and pharyngeal musculatures arise from two embryonic sources.

• hypobranchial musculature and branchiomeric musculature

• paraxial mesomere and paired hypomeres

• mesynchyme and somites

• somitemeres and apaxial musculature

In fishes, musculature consist of segmental _____

• myomeres

• sarcomere

• actin

• myosin

Epicardium and mesenteries were developed from _________

• paraxial mesoderm

• somatic mesoderm

• splanchnic mesoderm

• intermediate mesoderm

The space that separates the specialized end of motor nerve fiber and the membrane of muscle fiber called _______.

• sarcodina

• sarcomere

• sarcoplasm

• sarcolemma

Generally muscle arise from true embryonic orgins, Except one.

• hypaxial mesoderm

• hypomere

• paraxial mesoderm

• mesenchyme

Actin filament is attached to the __________

• Z-line

• I band

• A band

• M line