The immune system normally distinguishes between which types of antigens?
A. B and T
B. Self and non-self
C. Humoral and cellular
D. Innate and acquired
E. Active and passive
B. Self and non-self
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The heart utilizes glucose almost exclusively for energy production
Indicate whether the statement is true or false
One of the ways an inhibitory neurotransmitter can work is by causing the postsynaptic cell to
A. close chloride gates and prevent chloride exit. B. open sodium gates and allow sodium entry. C. open potassium gates and allow potassium exit. D. open both sodium and calcium gates.
Which statement about the bronchi is false?
A. The main bronchi and all of their further branches make up the bronchial tree. B. The right bronchus is slightly more horizontal than the left bronchus due to the location of the heart. C. The right and left main bronchi each enter their respective lung at the hilum. D. All of these statements are false.
Sutures and gomphoses consist of dense connective tissue, and are immovable; therefore they can be classified as
A. fibrous amphiarthroses. B. synovial diarthroses. C. fibrous synarthroses. D. cartilaginous amphiarthroses. E. cartilaginous synarthroses.