The ________ resembles a capillary and provides a direct means of artery-vein communication.

Fill in the blank(s) with the appropriate word(s).


thoroughfare channel

Anatomy & Physiology

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Carrier-mediated transport

a. involves a specific membrane protein that serves as a carrier molecule. b. always moves substances against a concentration gradient. c. always requires energy expenditure. d. two of these answers. e. all of these answers.

Anatomy & Physiology

Secondary ossification centers occur

A) in the diaphysis. B) at the periosteum. C) in the epiphyses. D) in the metaphyses. E) in dermal bones.

Anatomy & Physiology

Exocytosis is a form of secondary active transport

Indicate whether this statement is true or false.

Anatomy & Physiology

Glucagon:

a. is released by pancreatic beta cells b. accelerates liver glycogenolysis c. causes a drop in blood glucose levels d. all of the above

Anatomy & Physiology