Figure 7-1 Structural Components of a Skeletal Muscle Fiber

question 113

Multiple Choice

Figure 7-1 Structural Components of a Skeletal Muscle Fiber
Use Figure 7-1 to identify the labeled part.
-Structure H is the

• A) thick myofilament.
• B) thin myofilament.
• C) Z line.
• D) H band.
• E) M lines.

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Definitions:

Levator Ani Iliococcygeus

A component of the levator ani muscle, which supports the pelvic organs and helps in maintaining fecal continence.

External Urethral Sphincter

A circular muscle that controls urination by constricting or relaxing to allow the flow of urine from the bladder.

Pubococcygeus

A muscle of the pelvic floor that supports the pelvic organs and is involved in urinary control and sexual function.

Occipital Bone

A bone at the lower back part of the skull, contributing to the cranial cavity's posterior wall and base.