The nasal cavity is divided into right and left halves by a septum.
Answer the following statement true (T) or false (F)
True
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Which of the following is not true of acetylcholine?
A) It binds to receptor membrane channels. B) It diffuses across the synaptic cleft. C) It is stored in the neuron in vesicles. D) It enters the muscle fiber to release calcium form the sarcoplasmic reticulum. E) It is digested by acetylcholinesterase.
Receptors
a. respond to various physical or chemical changes in their environment. b. change other forms of energy into electrical energy. c. respond more readily to their adequate stimulus. d. are found at the peripheral endings of afferent neurons. e. all of these answers.
Identify the primary region of the ulna that forms the hinge joint with the humerus.
A. Trochlear notch B. Coronoid process C. Olecranon process D. Olecranon fossa
If the H+ concentration in the blood increases, bicarbonate ions act as buffers by
A. dissociating into H+ and CO3?. B. releasing H+ into the plasma. C. combining with Cl?. D. removing excess H+ from the plasma. E. combining with hemoglobin.