---

---

Select your answer:
         

Next Quiz >

Topics:

Foot Orthosis Vocab Branches of Medicine Circulatory System - Pathway of Blood Corona Lipids Biochemistry Vocabulary Excretory and Musculoskeletal System Nervous System and Special Senses Health-Wellness-Illness Microbes and Infectious Disease Who am Eye? Weight Management Circulatory & Respiratory System Restrictive Respiratory Disorders Anatomy & Physiology: Respiratory

Other quiz:

Nervous / Sensory System › View

The optic nerve has a covering that helps protect and insulate it called the

A. muscle fiber

B. fat layer

C. myelin sheath

D. trash bag

---

Musculoskeletal System › View

Smooth muscle and cardiac muscle are considered _____ muscles because we can’t control them.

A. Involuntary

B. Voluntary

C. none of the above

---