A sphincter has
A. fibers arranged in a parallel form.
B. muscle fibers concentrically arranged.
C. widespread muscle fibers that converge on a common attachment site.
D. fascicles that alternate superiorly and inferiorly.
E. fascicles arranged obliquely to their tendon.
Answer: B
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The ____________________ is a ring of cartilage that forms the lowermost or inferior walls of the larynx
Fill in the blank(s) with correct word
Which neurotransmitter ensures skeletal muscles receive the supply of nutrients needed to make ATP by stimulating the release of more fatty acids and glucose into the blood stream?
A) epinephrine B) norepinephrine C) acetylcholine D) aldosterone
What is the function of dendritic cells within lymph nodes?
A. They initiate replication of macrophages. B. They conduct signals between activated T-lymphocytes to accelerate the immune response. C. They collect antigens and present them to T-lymphocytes. D. They absorb fluid when infected, causing the lymph nodes to swell and become tender to the touch. E. They secrete lymphatic hormones to stimulate adjacent lymph nodes.
Lymph is transported through a network of increasingly larger lymphatic passageways. What is the correct order of these, from smallest diameter to largest diameter?
A. Capillaries - ducts - trunks - vessels B. Ducts - capillaries - vessels - trunks C. Vessels - capillaries - trunks - ducts D. Ducts - vessels - capillaries - trunks E. Capillaries - vessels - trunks - ducts