How does the plasmalemma change either over time or in response to modifications in the extracellular fluid?

What will be an ideal response?


Membrane turnover is effected by the Golgi apparatus, which continually adds new membrane to the cell surface and can alter the membrane properties as required. In an actively secreting cell, the entire surface area of the plasmalemma may be replaced in as little as an hour.

Anatomy & Physiology

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________ muscle fibers pull in different directions, permitting different actions depending on stimulation

A) Convergent B) Parallel C) Straight D) Pennate E) Circular

Anatomy & Physiology

You are sitting at a Mexican restaurant waiting for your food. The waiter brings a very hot plate, telling you to be careful about touching it. You touch it anyway, producing a pain sensation in your fingers, a withdrawal of your hand, and an auditory comment of what you are thinking. This scenario represents a ________ neuronal circuit

A) parallel processing B) reverberating C) serial processing D) convergent E) divergent

Anatomy & Physiology

Association areas

A.  correlate information from opposite sides of the brain. B.  correlate similar functions from different lobes on the same side of the brain. C.  correlate similar functions from the same lobes on the opposite side of the brain. D.  integrate new sensory inputs with memories of past experiences. E.  integrate outgoing motor information.

Anatomy & Physiology

Parathyroid hormone release depends on blood levels of calcium. Such an endocrine reflex is said to be initiated by

A. hormonal stimulation. B. humoral stimulation. C. neural stimulation. D. positive feedback stimulation.

Anatomy & Physiology