Cell shrinking, also known as crenation, occurs when a cell is placed into a(n) _________ solution.

Osteocytes exchange substances with nearby cells by means of cellular processes passing through ________.

In a myelinated axon, the greatest concentration of voltage-gated ion channels is in the

The type of neuronal circuit that ensures that we continue to breathe while asleep is a _____________ circuit.

The presence of mitochondria and myoglobin facilitate _________ respiration in muscle cells.

Of the two types of synapses, based on mode of communication, which is less common but allows faster signal transmission?

  Which number indicates the lunula?

 In this image showing connective tissue components, what structure does number 1 indicate?

Mucus is moved along the lining of the trachea by extensions from cell membranes known as

The metatarsophalangeal joints allow movement in two planes and are classified as _________ joints.