How does the number of skeletal elements in the body change with age?
A) it stays the same
B) it increases
C) it decreases
C) it decreases
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Which of the following is true of a muscle that is relaxing?
A) Oxygen is depleted. B) Released calcium ions are present. C) ATP levels are low. D) The tendons are taut. E) AChE is present in the synaptic cleft.
Cholesterol, a type of lipid, is composed of 3 fatty acid chains attached to glycerol
Indicate whether the statement is true or false
Answer the following statements true (T) or false (F)
1. The electrolyte iodine is important in the production of thyroid hormones. 2. The electrolyte iron is important in the production of hemoglobin. 3. Where sodium goes, water follows. 4. The most abundant positive ion in the blood is calcium. 5. The most abundant negative ion in the blood is chloride.
Stimulus intensity, or strength, is encoded in
a. the amplitude (height) of the action potential with stronger stimuli eliciting taller action potentials. b. duration of a single action potential with stronger stimuli eliciting overshoots with more area under the curve. c. frequency of action potentials with stronger stimuli eliciting higher frequencies. d. faster conduction velocities with stronger stimuli resulting in more rapid depolarization of contiguous segments of the axonal membrane. e. all of these.