When an infant suckles at its mother's breast, milk moves through the breast structures in what order?
A. Lactiferous sinus - acinus - lactiferous duct - nipple
B. Lactiferous duct - acinus - lactiferous sinus - nipple
C. Lactiferous sinus - lactiferous duct - acinus - nipple
D. Acinus - lactiferous duct - lactiferous sinus - nipple
Answer: D
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The most important chemical regulator of respiration is
A) oxygen. B) carbon dioxide. C) bicarbonate ion. D) sodium ion. E) hemoglobin.
What skin disorder is recognized using the ABCDE rule?
A) squamous cell carcinoma B) melanoma C) psoriasis D) basal cell carcinoma E) impetigo
Which statement correctly describes the pectoral girdle and the pelvic girdle?
A. The pectoral girdle bones attach the arm bones to the axial skeleton while the pelvic girdle bones attach the leg bones to the appendicular skeleton. B. The pectoral girdle bones attach the arm bones to the axial skeleton while the pelvic girdle bones attach the leg bones to the axial skeleton. C. The pelvic girdle bones attach the arm bones to the axial skeleton while the pectoral girdle bones attach the leg bones to the axial skeleton. D. The pectoral girdle bones attach the arm bones to the appendicular skeleton while the pelvic girdle bones attach the leg bones to the axial skeleton.
The ____ muscle is located in the spermatic cord and elevates the testes upon exposure to cold
a. testicular b. penile c. scrotal d. cremaster