Which of the following lists is in the correct order? Sweet tastes are processed in the following way:
A) Receptor binding, gustducin activated, adenylatecyclase activated, K+ channels close.
B) Receptor binding, Na+ channels open, cell depolarizes.
C) Gustducin activated, Ca2+ channels close, cell hyperpolarizes.
D) Transducin activated, PLC activated, Ca2+ levels rise, neurotransmitter released.
Answer: A
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The female pelvis typically has which of the following characteristics?
a. narrow, U-shaped greater sciatic notch b. wide subpubic angle, greater than 100 degrees c. short, triangular pubic body d. smaller, heart-shaped pelvic inlet
The ________ of the humerus is called the "funny bone." The tingling sensation that you experience is due to striking of the ulnar nerve that runs behind this structure
A) olecranon process B) lateral epicondyle C) medial epicondyle D) olecranon fossa
The extracellular material found in tissues is called
A. fibroblast. B. cytoplasm. C. plasma. D. lymph. E. matrix.
The heart valves
A. stabilize and hold the arteries leaving the heart. B. permit the passage of blood in one direction. C. are only used in the fetal heart. D. direct the conduction impulse through the heart muscle. E. separate the right and left sides of the heart.