Actin and myosin filaments are most abundant in ____ cells

a. epithelial
b. muscle
c. nerve
d. red blood
e. white blood


B

Anatomy & Physiology

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The frontal belly of the occipitofrontalis muscle causes what action?

A. Sneering B. Frowning C. Flaring the nostrils D. Smiling E. Wrinkling the brow (forehead)

Anatomy & Physiology

Which of the following stimulates aldosterone secretion?

a. an increase in plasma K+. b. a decrease in plasma K+. c. activation of the renin-angiotensin pathway. d. both (a) and (c) above. e. both (b) and (c) above.

Anatomy & Physiology

Steroids, peptides, and nucleic acids are the three classes of hormones.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Which set of regions in the abdominopelvic cavity is medial?

A) umbilical, right lumbar, and left lumbar regions B) epigastric, umbilical, and hypogastric (pubic) regions C) iliac (inguinal), lumbar, and hypogastric (pubic) regions D) epigastric, right, and left hypochondriac regions E) right and left iliac (inguinal), and hypogastric (pubic) regions

Anatomy & Physiology