During the resting potential, many potassium channels are open in the plasma membrane
Indicate whether the statement is true or false
T
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The loss of blood through the walls of damaged vessels is prevented by the process of ________.
Fill in the blank(s) with the appropriate word(s).
The work of breathing normally requires about 3% of total energy expenditure, this increases under all of the following situations except
a. when elastic recoil is decreased. b. when resistance goes up. c. when the partial pressure of oxygen decreases in the air. d. when ventilation must be increased. e. it increases with all of the above
What are the attachments of the extensor digitorum longus?
a. Proximal anterior fibula to the dorsal surface of toes two through five b. Distal anterior fibula to the fifth metatarsal c. Proximal anterior tibia to the medial foot d. Middle anterior fibula to the dorsal surface of the big toe
The endocrine system comprises a network of ___________ that produce and secrete chemical messengers called ____________.
A) glands, hormones B) nodes, catecholamines C) vessels, leukotrienes D) synapses, neurotransmitters