Which of the following statements concerning receptor potentials is correct? Receptor potentials
a. are usually depolarizations of receptors in response to adequate stimuli.
b. are graded potentials.
c. occur in neuronal cell bodies upon summation of pre synaptic input.
d. both (a) and (b) above.
e. all of these answers.
D
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________ and respiratory movements move lymph upward through lymphatic vessels and trunks below the heart.
A. Heart contractions B. Osmotic pressure C. Skeletal muscle contractions D. Movement of internal organs
Intervertebral discs are composed of skeletal muscle.
Answer the following statement true (T) or false (F)
Conditions that promote the oxidative deamination and energy use of amino acids include ________
A) ammonia combining with oxygen to form urea B) adequate essential amino acids C) adequate fat calories to provide adequate ATP formation D) excessive amounts of protein in the diet
The nerve gas, sarin, was used during World War II as chemical warfare. Sarin inhibits the effects of acetylcholinesterase at the synapse. Predict how sarin will affect excitation
What will be an ideal response?