The effectiveness of some antibiotics, such as penicillin, is enhanced by preventing their excretion by use of ________.

A. xenobiotics
B. toxiporins
C. organic anion transporters
D. probenecid


Answer: D

Anatomy & Physiology

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The synaptic knob of a neuromuscular junction is the portion of the muscle fiber that contains receptor sites for neurotransmitters.

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

Anatomy & Physiology

During exercise, the energy necessary to sustain skeletal muscle cell contraction comes from

A. conservation of glucose. B. decreased sympathetic nervous system activity. C. increased epinephrine and glucagon release. D. increased insulin production. E. storing glucose as glycogen.

Anatomy & Physiology

Bile is produced by cells of the ________.

A. duodenum B. gallbladder C. pancreas D. liver E. hepatopancreatic ampulla

Anatomy & Physiology

Which of the following is not considered a region of the spinal cord?

A. Sacral B. Lumbar C. Thoracic D. Cervical E. Pelvic

Anatomy & Physiology