The esophagus is skeletal muscle at the top third, mixed in the middle third, and smooth muscle in the bottom third.

a. true
b. false


Answer: a. true

Anatomy & Physiology

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Which characteristics do annelids and arthropods have in common?

A) Both have feeding grooves. B) Both exhibit metamorphosis. C) Both are metameric. D) Both have a chitin-based body covering.

Anatomy & Physiology

If you have had the measles, you cannot get them again. This is an example of:

a. natural active immunity b. natural passive immunity c. artificial active immunity d. artificial passive immunity

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What tissue serves as the model for bones formed during endochondral ossification?

A) hyaline cartilage B) compact bone C) spongy bone D) fibrocartilage

Anatomy & Physiology

A synovial joint is also called a ________.

What will be an ideal response?

Anatomy & Physiology