The type of muscle that functions as a sphincter is

A. pennate.
B. straight.
C. orbicular.
D. rhombohedral.
E. unipennate.


C

Anatomy & Physiology

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Each amino acid differs from others in the

A) chemical structure of the R group. B) size of the amino group. C) number of carboxyl groups. D) number of central carbon atoms. E) number of peptide bonds in the molecule.

Anatomy & Physiology

Polyribosomes

a. a unusually large ribosomes. b. are found on smooth ER. c. synthesize lipids and nucleic acids. d. are clusters of ribosomes synthesizing the same protein. e. none of these answers.

Anatomy & Physiology

The structure responsible for attaching muscle to bone is a

A.  sphincter. B.  ligament. C.  fascia. D.  tendon. E.  myofibril.

Anatomy & Physiology

Physiologic effects of CPAP include:

A) increased intrathoracic pressure. B) forcing of fluid into the alveoli. C) increased alveolar surface tension. D) opening of collapsed alveoli.

Anatomy & Physiology