What is the optimal pH level for pepsin activity?
A) 3—4
B) 10—13
C) 1—3
D) 7
Answer: C
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If an individual was lacking a key amino acid and so couldn't make and release substance P, what would happen?
A. There would be a surge in activity in neurons that synthesize opiate neurotransmitters. B. There would be increasing sensation of pain generated by the brain, with or without any damage to structures in the periphery. C. They would experience a lack of sensation in some pain pathways. D. There would be an increase in activity in neurons that detect painful stimuli in internal organs. E. Synaptic activity in afferent neurons associated with pain receptors can be inhibited by axon-axon synapses with neurons from descending pathways.
Osteocytes release histamine and heparin.
Answer the following statement true (T) or false (F)
The region of the sarcomere that contains both actin and myosin myofilaments is called the
A. I band. B. A band. C. Z disk. D. H zone. E. M line.
Antidiuretic hormone (ADH) targets the ________
A) kidneys B) anterior pituitary C) adrenal gland D) pancreas E) hypothalamus