Which of the following descriptions best matches the term bronchiolar smooth muscle?

A) accessory muscle of expiration
B) accessory muscle of inspiration
C) primary muscle of inspiration
D) contraction increases airway resistance
E) affects lung compliance


D

Anatomy & Physiology

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Which of the disorders below is characterized by destruction of the walls of the alveoli producing abnormally large air spaces that remain filled with air during exhalation?

A) pneumonia B) tuberculosis C) emphysema D) coryza

Anatomy & Physiology

Myoepithelial cells perform which of the following functions?

A. They cause milk ejection into lactiferous ducts. B. They stimulate uterine contractions during female orgasm. C. They sweep the egg into the uterine tube when it is ovulated. D. They cause contractions in the ductus deferens and epididymis so that sperm are pushed toward the penis. E. They cause ejection of glandular secretions from seminal vesicles.

Anatomy & Physiology

A narrow, slit-like opening through a bone is called a ________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Down syndrome (trisomy-21) results from _________.

A. a mutagen B. nondisjunction C. a teratogen D. a sex-linked mutation E. an autosomal recessive allele

Anatomy & Physiology