The type of muscle fibers that have only a single nucleus, both thick and thin filaments, but no Z discs, are

A. cardiac and smooth.
B. cardiac.
C. cardiac and skeletal.
D. smooth.
E. skeletal.


Answer: D

Anatomy & Physiology

You might also like to view...

A graded response of posture muscles such as the gluteus maximus is called ________.

A. maximal stimulus B. atrophy C. muscle tone D. hypertrophy

Anatomy & Physiology

Daniel was in a skiing accident and bruised the spinocerebellar tracts of his spinal cord. What kind of information do these tracts carry? Explain their function

What will be an ideal response?

Anatomy & Physiology

Which stimulates the secretion of growth hormone?

A. Waking from sleep B. Increased levels of IGF-I in blood C. High plasma glucose D. Increased somatostatin secretion E. Exercise

Anatomy & Physiology

Human muscles contain both fast-twitch and slow-twitch muscle fibers in equal amounts.

a. True b. False

Anatomy & Physiology