The lumbar arteries are
A) paired and travel in the intercostal spaces.
B) paired and found in the aortic arch.
C) paired and found on the posterior surface of the aorta.
D) single branches of the anterior abdominal aorta.
E) a pair of muscular arteries that travel along the inner surface of the ilium.
C) paired and found on the posterior surface of the aorta.
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Your friend is poking your skin with two pins a few millimeters apart at the same time. Visually, you can see there are two pins, but you can only feel a single pen poke. This is probably because:
A. the receptors in both skin areas utilize the same afferent neuron. B. both pens are activating the same receptor. C. both afferent neurons converge on the same interneuron. D. both sensations are grouped together in the somatosensory cortex.
In the diagram, which is a melanocyte?
a) A b) B c) E d) F e) G
Which muscle is located at the axillary border of the scapula?
A) splenius B) supraspinatus C) infraspinatus D) rhomboideus major E) teres major
True or False? Valves in lymphatic vessels allow substances to enter the vessel but reduce the ability for the substance from exiting the vessel.
Answer the following statement true (T) or false (F)