A blockage in the colon where the ascending colon turns to become the transverse colon would occur at the ________.
A. cardiac sphincter
B. gastric flexure
C. ileocecal valve
D. hepatic flexure
E. splenic flexure
Answer: D
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What unit of bone consists of a central canal (containing blood vessels, nerves, and lymph vessels) surrounded by concentric rings of calcified matrix?
A. Canaliculus B. Lamella C. Osteon D. Osteocyte E. Trabeculum
Possible causes of hypoxia include ________.
A) too little oxygen in the atmosphere B) obstruction of the esophagus C) taking several rapid deep breaths D) getting very cold
Which statement about gap junctions is incorrect?
a. They consist of protein. b. They are anchored to plaques on the inside surface of the plasma membrane. c. They allow materials to pass from one cell into an adjacent cell. d. They play a role in transmitting electrical activity through the heart. e. They consist of connexons.
A diminished reflex response that may indicate damage to a segment of the spinal cord is a(n) ________ reflex.
A. excessive B. ponderous C. hyperactive D. diminutive E. hypoactive