Which of the following happens in Malpighian tubules?
a. K+ is secreted into the lumen of the tubule.
b. A V-ATPase pumps H+ ions.
c. Cl- is secreted into the lumen.
d. Two of these.
e. None of these.
D
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Muscles with fibers that run perpendicular to the long axis of the body are called
A) lateralis. B) transversus. C) rectus. D) oblique. E) medialis.
Answer the following statements true (T) or false (F)
1. Going from most external to most internal, the layers of the eye would be sclera, choroid, and retina. 2. The function of the lacrimal gland is to produce aqueous humor for the interior of the eye. 3. Glaucoma occurs when too much vitreous humor builds up in the eye. 4. The vestibular nerve joins with the cochlear nerve to from cranial nerve VIII. 5. If the eyeball is too short, a condition called hyperopia, or farsightedness, can exist.
Which of the following is located closest to the rectum?
A. Sigmoid colon B. Transverse colon C. Cecum D. Ascending colon E. Descending colon
The ligamentum arteriosus is the remains of the:
a. umbilical artery b. umbilical vein c. pulmonary trunk d. ductus arteriosus